I get this message when trying to change the world time asynchronously
java.lang.IllegalStateException: TimeSkipEvent may only be triggered synchronously.
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:595) ~[patched_1.16.3.jar:git-Paper-253]
at org.bukkit.craftbukkit.v1_16_R2.CraftWorld.setFullTime(CraftWorld.java:948) ~[patched_1.16.3.jar:git-Paper-253]
at org.bukkit.craftbukkit.v1_16_R2.CraftWorld.setTime(CraftWorld.java:936) ~[patched_1.16.3.jar:git-Paper-253]
at ru.lmpx.lmpxserverkit.handlers.NightSkipHandler.lambda$onPlayerSleep$0(NightSkipHandler.java:29) ~[?:?]
at org.bukkit.craftbukkit.v1_16_R2.scheduler.CraftTask.run(CraftTask.java:99) ~[patched_1.16.3.jar:git-Paper-253]
at org.bukkit.craftbukkit.v1_16_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.16.3.jar:git-Paper-253]
at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.3.jar:git-Paper-253]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_271]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_271]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_271]
#EventHandler
public void onPlayerSleep(PlayerBedEnterEvent e) {
if (!(plugin.getConfig().getBoolean("skipNight.enable"))) return;
if (e.getBedEnterResult().equals(PlayerBedEnterEvent.BedEnterResult.OK)) {
if (plugin.getConfig().getBoolean("skipNight.instantSkip")) {
Bukkit.getWorld("world").setTime(0);
Bukkit.getWorld("world").setStorm(false);
} else {
Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
while (Bukkit.getWorld("world").getTime() < 24000) {
Bukkit.getWorld("world").setTime(Bukkit.getWorld("world").getTime() + 10);
try {
Thread.sleep(10);
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
});
}
}
}
What needs to be changed so that the asynchronous thread changes time without an IllegalStateException error?
The exception is explicit, you cannot call a synchronous method asynchronously. This is to ensure that thread safety is upheld. To fix your code, you would need to change out runTaskAsynchronously() with runTask(), however, with your current code, this would freeze the main thread.
A better solution is to use the runTaskTimer() method. You can create a new class that extends BukkitRunnable. The below code is untested but it should be close to what you need:
import org.bukkit.Bukkit;
import org.bukkit.World;
import org.bukkit.scheduler.BukkitRunnable;
public class BedTask extends BukkitRunnable {
#Override
public void run() {
World world = Bukkit.getWorld("world");
if(world.getTime() >= 24000){
this.cancel();
return;
}
world.setTime(world.getTime() + 10);
}
}
And you could then execute it like:
int sleepWaitPeriod = 10;
new BedTask().runTaskTimer(plugin, 0L, sleepWaitPeriod * 20);
Related
I have a gateway application with customized loadbalancing rule, and here is the code following spring cloud official doc:
#RibbonClients(defaultConfiguration = CustomizedRibbonConfig.class)
public class RibbonClientConfiguration {
public static class BazServiceList extends ConfigurationBasedServerList {
public BazServiceList(IClientConfig config) {
super.initWithNiwsConfig(config);
}
}
}
#Configuration
class CustomizedRibbonConfig {
#Bean
public IRule ribbonRule() {
return new MetadataAwareRule();
}
#Bean
public ServerListUpdater ribbonServerListUpdater() {
return new EurekaNotificationServerListUpdater();
}
}
public class MetadataAwarePredicate extends AbstractDiscoveryEnabledPredicate {
/**
* {#inheritDoc}
*/
#Override
protected boolean apply(DiscoveryEnabledServer server) {
return true;
}
}
#Slf4j
public class MetadataAwareRule extends AbstractDiscoveryEnabledRule {
public static final ThreadLocal<String> CURRENT_LOAD_BALANCED_SERVICE_IP = new ThreadLocal<>();
/**
* Creates new instance of {#link MetadataAwareRule}.
*/
public MetadataAwareRule() {
this(new MetadataAwarePredicate());
}
/**
* Creates new instance of {#link MetadataAwareRule} with specific predicate.
*
* #param predicate the predicate, can't be {#code null}
* #throws IllegalArgumentException if predicate is {#code null}
*/
public MetadataAwareRule(AbstractDiscoveryEnabledPredicate predicate) {
super(predicate);
}
#Override
public Server choose(Object key) {
....my customized choose policy....
}
And Here is the thing, I have a need to refresh application by firing RefreshEvent but it will lead to quite strange problem which may due to Eureka or zuul client of version from parent:
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix</artifactId>
<version>2.2.5.RELEASE</version>
</parent>
For easy recurrent of such problem, the function was simplified as a simple request showing below:
#GetMapping("/test/event")
public CommonResult testRaiseRefreshEvent() {
ApplicationContextHolder.getApplicationContext().publishEvent(new RefreshEvent(this, null, "test to trigger the problem"));
return CommonResult.succeed();
}
Once request this api, application will take a refresh.
But sometimes, application will have this exception:
2022-10-19 11:29:32.947 [app:web-gateway,traceId:,spanId:,parentId:] [DiscoveryClient-CacheRefreshExecutor-0] ERROR | RedirectingEurekaHttpClient.java:83 | c.n.d.s.t.d.RedirectingEurekaHttpClient | Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:8000/eureka/}
javax.ws.rs.WebApplicationException: com.fasterxml.jackson.core.JsonParseException: processing aborted
at [Source: (GZIPInputStream); line: 1, column: 18]
at com.netflix.discovery.provider.DiscoveryJerseyProvider.readFrom(DiscoveryJerseyProvider.java:110)
at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:634)
at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:586)
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplicationsInternal(AbstractJerseyEurekaHttpClient.java:200)
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplications(AbstractJerseyEurekaHttpClient.java:167)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)
at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118)
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:120)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1097)
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:1011)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:440)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:282)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:278)
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.java:67)
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:316)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:363)
at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389)
at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:360)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192)
at com.sun.proxy.$Proxy169.getApplications(Unknown Source)
at org.springframework.cloud.netflix.eureka.EurekaDiscoveryClient.getServices(EurekaDiscoveryClient.java:80)
at org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient.getServices(CompositeDiscoveryClient.java:67)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.locateRoutes(DiscoveryClientRouteLocator.java:121)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.locateRoutes(DiscoveryClientRouteLocator.java:44)
at org.springframework.cloud.netflix.zuul.filters.SimpleRouteLocator.doRefresh(SimpleRouteLocator.java:186)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.refresh(DiscoveryClientRouteLocator.java:171)
at org.springframework.cloud.netflix.zuul.filters.CompositeRouteLocator.refresh(CompositeRouteLocator.java:78)
at org.springframework.cloud.netflix.zuul.web.ZuulHandlerMapping.setDirty(ZuulHandlerMapping.java:79)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.reset(ZuulServerAutoConfiguration.java:315)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.resetIfNeeded(ZuulServerAutoConfiguration.java:310)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.onApplicationEvent(ZuulServerAutoConfiguration.java:304)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.onCacheRefreshed(CloudEurekaClient.java:123)
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:1027)
at com.netflix.discovery.DiscoveryClient.refreshRegistry(DiscoveryClient.java:1533)
at com.netflix.discovery.DiscoveryClient$CacheRefreshThread.run(DiscoveryClient.java:1500)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.fasterxml.jackson.core.JsonParseException: processing aborted
at [Source: (GZIPInputStream); line: 1, column: 18]
at com.netflix.discovery.converters.EurekaJacksonCodec$ApplicationsDeserializer.deserialize(EurekaJacksonCodec.java:805)
at com.netflix.discovery.converters.EurekaJacksonCodec$ApplicationsDeserializer.deserialize(EurekaJacksonCodec.java:791)
at com.fasterxml.jackson.databind.ObjectReader._unwrapAndDeserialize(ObjectReader.java:2196)
at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:2054)
at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1431)
at com.netflix.discovery.converters.EurekaJacksonCodec.readValue(EurekaJacksonCodec.java:213)
at com.netflix.discovery.converters.wrappers.CodecWrappers$LegacyJacksonJson.decode(CodecWrappers.java:314)
at com.netflix.discovery.provider.DiscoveryJerseyProvider.readFrom(DiscoveryJerseyProvider.java:103)
... 69 common frames omitted
and
2022-10-19 11:29:32.956 [app:web-gateway,traceId:,spanId:,parentId:] [DiscoveryClient-CacheRefreshExecutor-0] ERROR | DiscoveryClient.java:1018 | c.netflix.discovery.DiscoveryClient | DiscoveryClient_WEB-GATEWAY/192.168.56.1:web-gateway:8004:NEW_GATEWAY_DEFAULT_GROUP - was unable to refresh its cache! status = Cannot execute request on any known server
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:112)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77)
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134)
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1097)
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:1011)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:440)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:282)
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:278)
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.java:67)
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:316)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:363)
at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389)
at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:360)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192)
at com.sun.proxy.$Proxy169.getApplications(Unknown Source)
at org.springframework.cloud.netflix.eureka.EurekaDiscoveryClient.getServices(EurekaDiscoveryClient.java:80)
at org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient.getServices(CompositeDiscoveryClient.java:67)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.locateRoutes(DiscoveryClientRouteLocator.java:121)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.locateRoutes(DiscoveryClientRouteLocator.java:44)
at org.springframework.cloud.netflix.zuul.filters.SimpleRouteLocator.doRefresh(SimpleRouteLocator.java:186)
at org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator.refresh(DiscoveryClientRouteLocator.java:171)
at org.springframework.cloud.netflix.zuul.filters.CompositeRouteLocator.refresh(CompositeRouteLocator.java:78)
at org.springframework.cloud.netflix.zuul.web.ZuulHandlerMapping.setDirty(ZuulHandlerMapping.java:79)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.reset(ZuulServerAutoConfiguration.java:315)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.resetIfNeeded(ZuulServerAutoConfiguration.java:310)
at org.springframework.cloud.netflix.zuul.ZuulServerAutoConfiguration$ZuulRefreshListener.onApplicationEvent(ZuulServerAutoConfiguration.java:304)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.onCacheRefreshed(CloudEurekaClient.java:123)
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:1027)
at com.netflix.discovery.DiscoveryClient.refreshRegistry(DiscoveryClient.java:1533)
at com.netflix.discovery.DiscoveryClient$CacheRefreshThread.run(DiscoveryClient.java:1500)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
And no matter how I refresh application again, gateway will never get chance to correct it's loadbalancer, no request will go through gateway due to exception like this:
java.lang.RuntimeException: com.netflix.client.ClientException: Load balancer does not have available server for client: web-message-center
at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:90)
at org.springframework.cloud.sleuth.instrument.web.client.feign.TraceLoadBalancerFeignClient.execute(TraceLoadBalancerFeignClient.java:78)
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:119)
at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89)
at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100)
at com.sun.proxy.$Proxy261.sendMessage(Unknown Source)
at com.wwstation.webgateway.components.GatewayUrlCountProcessor.sendAccessLogWithMq(GatewayUrlCountProcessor.java:221)
at com.wwstation.webgateway.components.GatewayUrlCountProcessor.run(GatewayUrlCountProcessor.java:82)
at org.springframework.cloud.sleuth.instrument.async.TraceRunnable.run(TraceRunnable.java:68)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.netflix.client.ClientException: Load balancer does not have available server for client: web-message-center
at com.netflix.loadbalancer.LoadBalancerContext.getServerFromLoadBalancer(LoadBalancerContext.java:483)
at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:184)
at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180)
at rx.Observable.unsafeSubscribe(Observable.java:10327)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.subscribe(Observable.java:10423)
at rx.Observable.subscribe(Observable.java:10390)
at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:443)
at rx.observables.BlockingObservable.single(BlockingObservable.java:340)
at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:112)
at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:83)
... 15 common frames omitted
It can be seen from EurekaNotificationServerListUpdater that each fetch interval, there will be a thread refreshing server list. But once I fire a RefreshEvent the refreshing thread will be shut down by refreshing of environment (or else) and no heartbeat will be triggered when eureka's fetch interval reached again, so my application will have no latest server info from eureka.
Because of that, there is another problem which would take place when firing RefreshEvent:
Gateway can still redirect request to target service, but gateway will never get latest server list from eureka. Once the target service is down, gateway will crash my request instead of telling me the target service is not online (I have a exception handler to solve Load balancer does not have available server for client).
These 2 problems will not take place at the same time, which means when problem A occurs, problem B will never take place, and the same when problem B occurs. And they all occur once a RefreshEvent was fired.
I have no idea what's going on, can anyone help me with this or give me some tips where the cause might be?
After 2 days work out, the problem is solved and I have found the cause.
Raw use of com.netflix.niws.loadbalancer.EurekaNotificationServerListUpdater in Zuul application will always have this kind of situation:
At the very beginning, if a EurekaEventListener was fired by DiscoveryClient, listeners registered by EurekaNotificationServerListUpdater will receive this message and then try to update serverlist and it is normal.
But when a RefreshEvent is fired, instance in application will re-register again which will cause DiscoveryClient to become a new instance! Which means, new DiscoveryClient will no longer holding listeners.
And also, a default use of EurekaNotificationServerListUpdater will use a singleton instance of DiscoveryClient which will never be changed by RefreshEvent, and those listeners will be hold by that old DiscoveryClient which is not managed by Eureka again after RefreshEvent.
Cause by this situation, after a RefreshEvent, Eureka's fetch heartbeat will no longer trigger listeners refreshing function and my gateway will crash if I have some applications down.
What I did to fix this problem is to markdown instance of those listeners and then try to re-register them into new DiscoveryClient when refreshing job is done.
Here is my code:
#Configuration
#Slf4j
public class RibbonDiscoveryClientListenerManager implements SmartApplicationListener {
private static EurekaClient discoveryClient;
/**
* markdown alive listeners in current EurekaClient
*/
private static final CopyOnWriteArraySet<EurekaEventListener> EUREKA_EVENT_LISTENER_SET = new CopyOnWriteArraySet<>();
/**
* judge whether to try a re-register
*
* #param listener
*/
static void register(EurekaEventListener listener) {
if (discoveryClient != null) {
registerEurekaListener(listener);
log.debug("discoveryClient update succeed");
} else {
log.warn("discoveryClient was not found waiting for scheduling...");
}
}
public static void registerEurekaListener(EurekaEventListener listener) {
if (!EUREKA_EVENT_LISTENER_SET.contains(listener)) {
EUREKA_EVENT_LISTENER_SET.add(listener);
discoveryClient.registerEventListener(listener);
}
}
#Override
public boolean supportsEventType(Class<? extends ApplicationEvent> eventType) {
return InstanceRegisteredEvent.class.isAssignableFrom(eventType);
}
#Override
public void onApplicationEvent(ApplicationEvent event) {
//clear cache
discoveryClient = null;
EUREKA_EVENT_LISTENER_SET.clear();
//try to get CloudEurekaClient
for (EurekaClient bean : ApplicationContextHolder.getBeans(EurekaClient.class)) {
if (CloudEurekaClient.class.isAssignableFrom(bean.getClass())) {
discoveryClient = bean;
}
}
}
}
Here is the customized ServerListUpdate
#Slf4j
public class RibbonClientEurekaAutoCompensateServerListUpdater implements ServerListUpdater {
private static class LazyHolder {
private final static String CORE_THREAD = "EurekaNotificationServerListUpdater.ThreadPoolSize";
private final static String QUEUE_SIZE = "EurekaNotificationServerListUpdater.queueSize";
private final static LazyHolder SINGLETON = new LazyHolder();
private final DynamicIntProperty poolSizeProp = new DynamicIntProperty(CORE_THREAD, 2);
private final DynamicIntProperty queueSizeProp = new DynamicIntProperty(QUEUE_SIZE, 1000);
private final ThreadPoolExecutor defaultServerListUpdateExecutor;
private final Thread shutdownThread;
private LazyHolder() {
int corePoolSize = getCorePoolSize();
defaultServerListUpdateExecutor = new ThreadPoolExecutor(
corePoolSize,
corePoolSize * 5,
0,
TimeUnit.NANOSECONDS,
new ArrayBlockingQueue<Runnable>(queueSizeProp.get()),
new ThreadFactoryBuilder()
.setNameFormat("EurekaNotificationServerListUpdater-%d")
.setDaemon(true)
.build()
);
poolSizeProp.addCallback(new Runnable() {
#Override
public void run() {
int corePoolSize = getCorePoolSize();
defaultServerListUpdateExecutor.setCorePoolSize(corePoolSize);
defaultServerListUpdateExecutor.setMaximumPoolSize(corePoolSize * 5);
}
});
shutdownThread = new Thread(new Runnable() {
#Override
public void run() {
log.info("Shutting down the Executor for EurekaNotificationServerListUpdater");
try {
defaultServerListUpdateExecutor.shutdown();
Runtime.getRuntime().removeShutdownHook(shutdownThread);
} catch (Exception e) {
// this can happen in the middle of a real shutdown, and that's ok.
}
}
});
Runtime.getRuntime().addShutdownHook(shutdownThread);
}
private int getCorePoolSize() {
int propSize = poolSizeProp.get();
if (propSize > 0) {
return propSize;
}
return 2; // default
}
}
public static ExecutorService getDefaultRefreshExecutor() {
return LazyHolder.SINGLETON.defaultServerListUpdateExecutor;
}
/* visible for testing */ final AtomicBoolean updateQueued = new AtomicBoolean(false);
private final AtomicBoolean isActive = new AtomicBoolean(false);
private final AtomicLong lastUpdated = new AtomicLong(System.currentTimeMillis());
private final Provider<EurekaClient> eurekaClientProvider;
private final ExecutorService refreshExecutor;
private volatile EurekaEventListener updateListener;
private volatile EurekaClient eurekaClient;
public RibbonClientEurekaAutoCompensateServerListUpdater() {
this(new LegacyEurekaClientProvider());
}
public RibbonClientEurekaAutoCompensateServerListUpdater(final Provider<EurekaClient> eurekaClientProvider) {
this(eurekaClientProvider, getDefaultRefreshExecutor());
}
public RibbonClientEurekaAutoCompensateServerListUpdater(final Provider<EurekaClient> eurekaClientProvider, ExecutorService refreshExecutor) {
this.eurekaClientProvider = eurekaClientProvider;
this.refreshExecutor = refreshExecutor;
}
#Override
public synchronized void start(final UpdateAction updateAction) {
if (isActive.compareAndSet(false, true)) {
this.updateListener = new EurekaEventListener() {
#Override
public void onEvent(EurekaEvent event) {
if (event instanceof CacheRefreshedEvent) {
if (!updateQueued.compareAndSet(false, true)) { // if an update is already queued
log.info("an update action is already queued, returning as no-op");
return;
}
if (!refreshExecutor.isShutdown()) {
try {
refreshExecutor.submit(new Runnable() {
#Override
public void run() {
try {
updateAction.doUpdate();
lastUpdated.set(System.currentTimeMillis());
} catch (Exception e) {
log.warn("Failed to update serverList", e);
} finally {
updateQueued.set(false);
}
}
}); // fire and forget
} catch (Exception e) {
log.warn("Error submitting update task to executor, skipping one round of updates", e);
updateQueued.set(false); // if submit fails, need to reset updateQueued to false
}
} else {
log.debug("stopping EurekaNotificationServerListUpdater, as refreshExecutor has been shut down");
stop();
}
}
}
};
if (eurekaClient == null) {
eurekaClient = eurekaClientProvider.get();
}
if (eurekaClient != null) {
RibbonDiscoveryClientListenerManager.register(updateListener);
} else {
log.error("Failed to register an updateListener to eureka client, eureka client is null");
throw new IllegalStateException("Failed to start the updater, unable to register the update listener due to eureka client being null.");
}
//start a shcedulepool to check new DiscoveryClient's listeners
new ScheduledThreadPoolExecutor(1,
new ThreadFactoryBuilder()
.setNameFormat("refreshListenerPool-%d")
.build())
.scheduleWithFixedDelay(() -> {
//schedule to invoke register defined in RibbonDiscoveryClientListenerManager
RibbonDiscoveryClientListenerManager.register(updateListener);
}, 10, 10, TimeUnit.SECONDS);
} else {
log.info("Update listener already registered, no-op");
}
}
#Override
public synchronized void stop() {
if (isActive.compareAndSet(true, false)) {
if (eurekaClient != null) {
eurekaClient.unregisterEventListener(updateListener);
}
} else {
log.info("Not currently active, no-op");
}
}
#Override
public String getLastUpdate() {
return new Date(lastUpdated.get()).toString();
}
#Override
public long getDurationSinceLastUpdateMs() {
return System.currentTimeMillis() - lastUpdated.get();
}
#Override
public int getNumberMissedCycles() {
return 0;
}
#Override
public int getCoreThreads() {
if (isActive.get()) {
if (refreshExecutor != null && refreshExecutor instanceof ThreadPoolExecutor) {
return ((ThreadPoolExecutor) refreshExecutor).getCorePoolSize();
}
}
return 0;
}
}
Config Class:
#RibbonClients(defaultConfiguration = CustomizedRibbonConfig.class)
public class RibbonClientConfiguration {
public static class BazServiceList extends ConfigurationBasedServerList {
public BazServiceList(IClientConfig config) {
super.initWithNiwsConfig(config);
}
}
}
#Configuration
class CustomizedRibbonConfig {
static final AtomicBoolean justRefreshed = new AtomicBoolean(false);
#Bean
public IRule ribbonRule() {
return new MetadataAwareRule();
}
#Bean
public ServerListUpdater ribbonServerListUpdater() {
return new RibbonClientEurekaAutoCompensateServerListUpdater();
}
}
I wrote an Interceptor which catches the 401 HTTP Status and then calls a method which sends a RefreshToken to the server to get a new AccessToken. For some reason it doesn't work although in the same class I have got a second function which does almost the same and works completely fine.
Am i missing out on something?
Thanks in advance.
Function where error occures:
public void RefreshToken(){
try{
if(db==null){
db=Database.newInstance();
}
}catch(Exception ex){
System.out.println("Error in while getting new Database");
}
Service<String> t=db.GetAccessToken();
t.setOnSucceeded(e -> { //Error thrown here
Database.ACCESSTOKEN=t.getValue();
});
t.setOnFailed(e -> {
System.out.println("Error with HTTP GET new Token");
});
}
Almost the same Function:
private void Login(String username, String password) {
Service<BothTokens> t=db.Login(new Credentials(username,password));
t.setOnSucceeded(e -> {
Database.REFRESHTOKEN=t.getValue().getRefreshToken();
Database.ACCESSTOKEN=t.getValue().getAccessToken();
openMainFXML();
closeWindow();
});
t.setOnFailed(e -> {
new ServiceExceptionHandler<>(t).handleServiceWithRetryOrClose((Stage) btnLogin.getScene().getWindow(),
"Error beim Login",
t.getException().getMessage(), (Exception) t.getException());
});
}
Interceptor:
OkHttpClient OK_HTTP_CLIENT = new OkHttpClient.Builder().addInterceptor(chain -> {
Response originalResponse = chain.proceed(chain.request());
if(originalResponse.code()==401){
try{
Login_Controller login=Login_Controller.newInstance();
login.RefreshToken();
}catch(Exception ex){
System.out.println("Error getting new Token");
ex.printStackTrace();
}
}
return originalResponse;
}).build();
Exception:
java.lang.IllegalStateException: Service must only be used from the FX Application Thread
at javafx.concurrent.Service.checkThread(Service.java:906)
at javafx.concurrent.Service.setOnSucceeded(Service.java:409)
at pkgController.Login_Controller.RefreshToken(Login_Controller.java:106)
at pkgServices.statics.StaticServerObjects.lambda$static$0(StaticServerObjects.java:19)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.kt:184)
at okhttp3.RealCall.execute(RealCall.kt:66)
at pkgServices.buildings.GetBuildings$1.call(GetBuildings.java:32)
at pkgServices.buildings.GetBuildings$1.call(GetBuildings.java:25)
at javafx.concurrent.Task$TaskCallable.call(Task.java:1423)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at javafx.concurrent.Service.lambda$null$493(Service.java:725)
at java.security.AccessController.doPrivileged(Native Method)
at javafx.concurrent.Service.lambda$executeTask$494(Service.java:724)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
java.lang.Exception: java.lang.Exception: Exception occured in GetBuildings with code: 401
at pkgServices.buildings.GetBuildings$1.call(GetBuildings.java:40)
at pkgServices.buildings.GetBuildings$1.call(GetBuildings.java:25)
at javafx.concurrent.Task$TaskCallable.call(Task.java:1423)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at javafx.concurrent.Service.lambda$null$493(Service.java:725)
at java.security.AccessController.doPrivileged(Native Method)
at javafx.concurrent.Service.lambda$executeTask$494(Service.java:724)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Exception: Exception occured in GetBuildings with code: 401
at pkgServices.buildings.GetBuildings$1.call(GetBuildings.java:37)
... 9 more
i suggest javafx AsyncTask Libray
and prepare your requests as below:
public class Example extends AsyncTask<Void,Void,String> {
private UIController controller;
public Example(UIController controller) {
this.controller = controller;
}
#Override
void onPreExecute() {
//PREPARE GUI, SHOW PROGRESS OR SOMETHING....
this.controller.updateProgressLabel("Starting Download")
}
#Override
String doInBackground() {
//THIS METHOD WORKING IN BACKGROUND HERE YOU SOULD IMPLEMENT CODE OF HTTP REQUEST AND RETURN RESULT OF REQUEST FOR EXAMPLE OBJECT OR JSON STRING
return new String();
}
#Override
void onPostExecute(String result) {
//HERE YOU CAN GET YOUR DATA FROM REQUEST AND SET RESULT ON GUI
this.controller.updateProgressLabel(result);
}
#Override
void progressCallback(Object... params) {
}
}
The problem was that the function was running in a different thread than the FXML-Controller and I had to write
Platform.runLater(() -> {....} )
I am running multiple services in an Ignite cluster which depend on each other.
I'd like to catch (user defined) exceptions at caller level when I call a remote service function. See example based on the Service example in the docs for 1.7.
MyUserException.java
package com.example.testing;
public class MyUserException extends Throwable {}
MyCounterService.java
package com.example.testing;
public interface MyCounterService {
int increment() throws MyUserException;
}
MyCounterServiceImpl.java (Error condition is ignite.cluster().forYoungest())
package com.example.testing;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteServices;
import org.apache.ignite.Ignition;
import org.apache.ignite.resources.IgniteInstanceResource;
import org.apache.ignite.services.Service;
import org.apache.ignite.services.ServiceContext;
public class MyCounterServiceImpl implements MyCounterService, Service {
#IgniteInstanceResource
private Ignite ignite;
private int value = 0;
public int increment() throws MyUserException {
if ((value % 2) == 0) {
throw new MyUserException();
} else {
value++;
}
return value;
}
public static void main(String [] args) {
Ignite ignite = Ignition.start();
IgniteServices svcs = ignite.services(ignite.cluster().forYoungest());
svcs.deployNodeSingleton("MyCounterService", new MyCounterServiceImpl());
}
#Override
public void cancel(ServiceContext ctx) {
System.out.println("Service cancelled");
}
#Override
public void init(ServiceContext ctx) throws Exception {
System.out.println("Service initialized");
}
#Override
public void execute(ServiceContext ctx) throws Exception {
System.out.println("Service running");
}
}
MyCallerService.java
package com.example.testing;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteException;
import org.apache.ignite.Ignition;
import org.apache.ignite.resources.IgniteInstanceResource;
import org.apache.ignite.services.Service;
import org.apache.ignite.services.ServiceContext;
public class MyCallerService implements Service {
#IgniteInstanceResource
private Ignite ignite;
private Boolean stopped;
public void run() {
stopped = false;
MyCounterService service = ignite.services().serviceProxy("MyCounterService", MyCounterService.class, false);
while (!stopped)
{
try {
Thread.sleep(500);
service.increment();
} catch (MyUserException e) {
System.out.println("Got exception");
//e.printStackTrace();
} catch (InterruptedException e) {
//e.printStackTrace();
}
catch (IgniteException e) {
System.out.println("Got critial exception");
// would print the actual user exception
//e.getCause().getCause().getCause().printStackTrace();
break;
}
}
}
public static void main(String [] args) {
Ignite ignite = Ignition.start();
ignite.services(ignite.cluster().forYoungest()).deployNodeSingleton("MyCallerService", new MyCallerService());
}
#Override
public void cancel(ServiceContext ctx) {
stopped = true;
}
#Override
public void init(ServiceContext ctx) throws Exception {
}
#Override
public void execute(ServiceContext ctx) throws Exception {
run();
}
}
The exception is not being catched at the caller level. Instead these exceptions show up in the console. How do I catch and handle the exceptions properly when a service function is called?
Output of MyCounterServiceImpl
[18:23:23] Ignite node started OK (id=c82df19c)
[18:23:23] Topology snapshot [ver=1, servers=1, clients=0, CPUs=4, heap=3.5GB]
Service initialized
Service running
[18:23:27] Topology snapshot [ver=2, servers=2, clients=0, CPUs=4, heap=7.0GB]
Nov 17, 2016 6:23:28 PM org.apache.ignite.logger.java.JavaLogger error
SCHWERWIEGEND: Failed to execute job [jobId=82580537851-3c0a354f-69b5-496c-af10-ee789a5387c3, ses=GridJobSessionImpl [ses=GridTaskSessionImpl [taskName=o.a.i.i.processors.service.GridServiceProxy$ServiceProxyCallable, dep=LocalDeployment [super=GridDeployment [ts=1479403401422, depMode=SHARED, clsLdr=sun.misc.Launcher$AppClassLoader#1d44bcfa, clsLdrId=4fe60537851-c82df19c-cdff-43ef-b7b6-e8485231629a, userVer=0, loc=true, sampleClsName=java.lang.String, pendingUndeploy=false, undeployed=false, usage=0]], taskClsName=o.a.i.i.processors.service.GridServiceProxy$ServiceProxyCallable, sesId=72580537851-3c0a354f-69b5-496c-af10-ee789a5387c3, startTime=1479403408961, endTime=9223372036854775807, taskNodeId=3c0a354f-69b5-496c-af10-ee789a5387c3, clsLdr=sun.misc.Launcher$AppClassLoader#1d44bcfa, closed=false, cpSpi=null, failSpi=null, loadSpi=null, usage=1, fullSup=false, subjId=3c0a354f-69b5-496c-af10-ee789a5387c3, mapFut=IgniteFuture [orig=GridFutureAdapter [resFlag=0, res=null, startTime=1479403408960, endTime=0, ignoreInterrupts=false, state=INIT]]], jobId=82580537851-3c0a354f-69b5-496c-af10-ee789a5387c3]]
class org.apache.ignite.IgniteException: null
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.execute(GridClosureProcessor.java:2009)
at org.apache.ignite.internal.processors.job.GridJobWorker$2.call(GridJobWorker.java:509)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6521)
at org.apache.ignite.internal.processors.job.GridJobWorker.execute0(GridJobWorker.java:503)
at org.apache.ignite.internal.processors.job.GridJobWorker.body(GridJobWorker.java:456)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1161)
at org.apache.ignite.internal.processors.job.GridJobProcessor$JobExecutionListener.onMessage(GridJobProcessor.java:1766)
at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1238)
at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:866)
at org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:106)
at org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:829)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.ignite.internal.processors.service.GridServiceProxy$ServiceProxyCallable.call(GridServiceProxy.java:392)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.execute(GridClosureProcessor.java:2006)
... 14 more
Caused by: com.example.testing.MyUserException
at com.example.testing.MyCounterServiceImpl.increment(MyCounterServiceImpl.java:19)
... 20 more
Output of MyCallerService
[18:23:28] Ignite node started OK (id=3c0a354f)
[18:23:28] Topology snapshot [ver=2, servers=2, clients=0, CPUs=4, heap=7.0GB]
Nov 17, 2016 6:23:28 PM org.apache.ignite.logger.java.JavaLogger error
SCHWERWIEGEND: Failed to obtain remote job result policy for result from ComputeTask.result(..) method (will fail the whole task): GridJobResultImpl [job=C2V2 [c=ServiceProxyCallable [mtdName=increment, svcName=MyCounterService, ignite=null]], sib=GridJobSiblingImpl [sesId=72580537851-3c0a354f-69b5-496c-af10-ee789a5387c3, jobId=82580537851-3c0a354f-69b5-496c-af10-ee789a5387c3, nodeId=c82df19c-cdff-43ef-b7b6-e8485231629a, isJobDone=false], jobCtx=GridJobContextImpl [jobId=82580537851-3c0a354f-69b5-496c-af10-ee789a5387c3, timeoutObj=null, attrs={}], node=TcpDiscoveryNode [id=c82df19c-cdff-43ef-b7b6-e8485231629a, addrs=[0:0:0:0:0:0:0:1%lo, 127.0.0.1, 172.18.22.52], sockAddrs=[/0:0:0:0:0:0:0:1%lo:47500, /127.0.0.1:47500, /172.18.22.52:47500], discPort=47500, order=1, intOrder=1, lastExchangeTime=1479403407847, loc=false, ver=1.7.0#20160801-sha1:383273e3, isClient=false], ex=class o.a.i.IgniteException: null, hasRes=true, isCancelled=false, isOccupied=true]
class org.apache.ignite.IgniteException: Remote job threw user exception (override or implement ComputeTask.result(..) method if you would like to have automatic failover for this exception).
at org.apache.ignite.compute.ComputeTaskAdapter.result(ComputeTaskAdapter.java:101)
at org.apache.ignite.internal.processors.task.GridTaskWorker$4.apply(GridTaskWorker.java:946)
at org.apache.ignite.internal.processors.task.GridTaskWorker$4.apply(GridTaskWorker.java:939)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6553)
at org.apache.ignite.internal.processors.task.GridTaskWorker.result(GridTaskWorker.java:939)
at org.apache.ignite.internal.processors.task.GridTaskWorker.onResponse(GridTaskWorker.java:810)
at org.apache.ignite.internal.processors.task.GridTaskProcessor.processJobExecuteResponse(GridTaskProcessor.java:995)
at org.apache.ignite.internal.processors.task.GridTaskProcessor$JobMessageListener.onMessage(GridTaskProcessor.java:1220)
at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1238)
at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:866)
at org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:106)
at org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:829)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: class org.apache.ignite.IgniteException: null
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.execute(GridClosureProcessor.java:2009)
at org.apache.ignite.internal.processors.job.GridJobWorker$2.call(GridJobWorker.java:509)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6521)
at org.apache.ignite.internal.processors.job.GridJobWorker.execute0(GridJobWorker.java:503)
at org.apache.ignite.internal.processors.job.GridJobWorker.body(GridJobWorker.java:456)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1161)
at org.apache.ignite.internal.processors.job.GridJobProcessor$JobExecutionListener.onMessage(GridJobProcessor.java:1766)
... 7 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.ignite.internal.processors.service.GridServiceProxy$ServiceProxyCallable.call(GridServiceProxy.java:392)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.execute(GridClosureProcessor.java:2006)
... 14 more
Caused by: com.example.testing.MyUserException
at com.example.testing.MyCounterServiceImpl.increment(MyCounterServiceImpl.java:19)
... 20 more
Got critial exception
Apperently this is a bug that's to be resolved:
https://issues.apache.org/jira/browse/IGNITE-4298
i think exception must throw over to caller node. Could you please provide full code example? Also, so strange that on node which have service, was exception with null value.
UPD.
Could you please also add log, because fort me, all work as expected. I catched MyUserException, and have in log message "Got exception".
I have project with uses Cloudhopper 5.0.6 library to hold SMPP connection (3.4 version) and send or receive PDUs.
I need to modify default PDUResopnse so, customized PDU processing was organized by extending DefaultSmppSessionHandler following way:
public class SmppSessionHandlerController extends DefaultSmppSessionHandler {
#Override
public PduResponse firePduRequestReceived(PduRequest pduRequest) {
PduRequestHandler pduReqHandler = pduRequestHandler;
PduResponse resultPduResponse = pduRequest.createResponse();
return processDefaultPduResponse(resultPduResponse);
}
private PduResponse processDefaultPduResponse(PduResponse pduResponse) {
//do some transformations here on pduResponse...
return pduResponse;
}
}
It works fine only for purposes:
Change result command status or some pdu fields / tlv params
Don't send any response for current PDU request. To do that firePduRequestReceived method must return null.
Now I need to add delayed PDU response sending, here the problems began.
My first try was like that:
#Override
public PduResponse firePduRequestReceived(PduRequest pduRequest) {
PduRequestHandler pduReqHandler = pduRequestHandler;
PduResponse resultPduResponse = pduRequest.createResponse();
return processDefaultPduResponse(resultPduResponse);
}
private PduResponse processDefaultPduResponse(PduResponse pduResponse) {
try {
Thread.sleep(responseDelay);
} catch (InterruptedException e) {
throw new RuntimeException("Response delay interrupted", e);
}
return pduResponse;
}
Sleep for current thread was added to delay sending response, so invocation thread was held for responseDelay milliseconds. This works fine if no more requests are coming at the same time for this session. Adding some submit_sm load in same session caused error:
com.cloudhopper.smpp.type.SmppTimeoutException: Unable to get response within [10000 ms]
at com.cloudhopper.smpp.impl.DefaultSmppSession.sendRequestAndGetResponse(DefaultSmppSession.java:471) ~[ch-smpp-5.0.6.jar:5.0.6]
at com.cloudhopper.smpp.impl.DefaultSmppSession.enquireLink(DefaultSmppSession.java:439) ~[ch-smpp-5.0.6.jar:5.0.6]
After searching in coudhopper sources I found the problem, it was excusive window lock for any action in DefaultSmppSession class:
future = sendWindow.offer(pdu.getSequenceNumber(), pdu, timeoutMillis, configuration.getRequestExpiryTimeout(), synchronous);
The problem was in com.cloudhopper.commons.util.windowing.Window class which uses exclusive lock for performing any operations, so it was impossible to wait before returning PRUResponse in one thread and making request from another.
Next try was around returning null as request processing (to drop request without sending any response) and sending PDUResponse manually with com.cloudhopper.smpp.SmppSession.sendResponsePdu(pduResponse) method. This approach works for awhile but always ends up with following exception:
com.cloudhopper.smpp.type.SmppChannelException: null
at com.cloudhopper.smpp.impl.DefaultSmppSession.sendResponsePdu(DefaultSmppSession.java:581) ~[ch-smpp-5.0.6.jar:5.0.6]
at com.svzn.autotest.smppclient.impl.cloudhopper.SmppSendingManager.sendPduResponse(SmppSendingManager.java:84) ~[smpp-client-1.0.1.jar:na]
at com.svzn.autotest.smppclient.impl.cloudhopper.util.SendPduCommand.sendPduResponse(SendPduCommand.java:80) [smpp-client-1.0.1.jar:na]
at com.svzn.autotest.smppclient.impl.cloudhopper.SmppClientImpl.sendPduResponse(SmppClientImpl.java:91) [smpp-client-1.0.1.jar:na]
at com.svzn.autotest.example.testng_aggr.lib.smpp.event.BaseEventProcessor$1.run(BaseEventProcessor.java:62) [test-classes/:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) [na:1.6.0_37]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [na:1.6.0_37]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [na:1.6.0_37]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) [na:1.6.0_37]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) [na:1.6.0_37]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_37]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_37]
at java.lang.Thread.run(Thread.java:662) [na:1.6.0_37]
Caused by: org.jboss.netty.handler.timeout.WriteTimeoutException: null
at org.jboss.netty.handler.timeout.WriteTimeoutHandler.<clinit>(WriteTimeoutHandler.java:79) ~[netty-3.9.0.Final.jar:na]
at com.cloudhopper.smpp.impl.DefaultSmppClient.createSession(DefaultSmppClient.java:259) ~[ch-smpp-5.0.6.jar:5.0.6]
at com.cloudhopper.smpp.impl.DefaultSmppClient.doOpen(DefaultSmppClient.java:226) ~[ch-smpp-5.0.6.jar:5.0.6]
at com.cloudhopper.smpp.impl.DefaultSmppClient.bind(DefaultSmppClient.java:193) ~[ch-smpp-5.0.6.jar:5.0.6]
at com.svzn.autotest.smppclient.impl.cloudhopper.tasks.RebindTask.run(RebindTask.java:37) ~[smpp-client-1.0.1.jar:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) [na:1.6.0_37]
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) [na:1.6.0_37]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) [na:1.6.0_37]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) [na:1.6.0_37]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) [na:1.6.0_37]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoo
lExecutor.java:204) [na:1.6.0_37
]
... 3 common frames omitted
Have no idea how to fix this error or send asynchronus PDUResponse in same session another way.
Do you have any ideas about that?
Finally, I found the problem. Issue was in incorrect synchronization block, which blocked parallel asyncronus event processing (sending pdu responses) and processing requests and responses without dealy in usual way.
Its perfectly ok to invoke
com.cloudhopper.smpp.SmppSession.sendResponsePdu(pduResponse)
method in one thread and woking with requests and responses by extending DefaultSmppSessionHandler from another one. Everything'll be processed in same session.
UPDATE:
Here's the implementation which I used to handle pdu requests:
public class SmppSessionHandlerController extends DefaultSmppSessionHandler {
private static final Logger log = LoggerFactory.getLogger(SmppSessionHandlerController.class);
private volatile PduHandler pduHandler;
private PduResponseHandler pduResponseHandler;
private PduRequestHandler pduRequestHandler;
public SmppSessionHandlerController() {
super(log);
}
public PduHandler getPduHandler() {
return pduHandler;
}
public void setPduHandler(PduHandler pduHandler) {
this.pduHandler = pduHandler;
}
public PduResponseHandler getPduResponseHandler() {
return pduResponseHandler;
}
public void setPduResponseHandler(PduResponseHandler pduResponseHandler) {
this.pduResponseHandler = pduResponseHandler;
}
public PduRequestHandler getPduRequestHandler() {
return pduRequestHandler;
}
public void setPduRequestHandler(PduRequestHandler pduRequestHandler) {
this.pduRequestHandler = pduRequestHandler;
}
#Override
public void fireExpectedPduResponseReceived(PduAsyncResponse pduAsyncResponse) {
log.trace("Handling response PDU: {}", pduAsyncResponse);
pduAsyncResponse.getResponse().setReferenceObject(pduAsyncResponse.getRequest().getReferenceObject());
processPduResponse(pduAsyncResponse.getResponse());
}
#Override
public void fireUnexpectedPduResponseReceived(PduResponse pduResponse) {
log.warn("Handling unexpected response PDU: {}", pduResponse);
processPduResponse(pduResponse);
}
#Override
public boolean firePduReceived(Pdu pdu) {
PduHandler currPduHandler = pduHandler;
if (currPduHandler != null) {
SmppPdu smppPdu = PduToApiConverter.convertToApiObject(pdu);
currPduHandler.handlePduReceived(smppPdu);
}
// default handling is to accept pdu for processing up chain
return true;
}
public void firePduRequestExpired(PduRequest pduRequest) {
super.firePduRequestExpired(pduRequest);
}
private void processPduResponse(PduResponse pduResponse) {
HandlersContextHelper referenceObj = (HandlersContextHelper) pduResponse.getReferenceObject();
if (referenceObj != null) {
referenceObj.getSequenceIdHolder().addReceivedSequenceId(pduResponse.getSequenceNumber());
}
PduResponseHandler pduRespHandler = pduResponseHandler;
if (pduRespHandler != null) {
SmppPduResponse smppPduResponse = PduToApiConverter.convertToApiResponse(pduResponse);
if (smppPduResponse != null) {
pduRespHandler.handlePduResponse(smppPduResponse);
}
}
if (referenceObj != null) {
referenceObj.getSequenceIdHolder().checkSentAndReceivedClosed();
}
}
#Override
public PduResponse firePduRequestReceived(PduRequest pduRequest) {
PduRequestHandler pduReqHandler = pduRequestHandler;
PduResponse resultPduResponse = pduRequest.createResponse();
if (pduReqHandler == null) {
return resultPduResponse;
}
PduResponse defaultPduResponse = pduRequest.createResponse();
SmppPduRequest smppPduRequest = PduToApiConverter.convertToApiRequest(pduRequest);
SmppPduResponse defaultSmppPduResponse = PduToApiConverter.convertToApiResponse(defaultPduResponse);
if (smppPduRequest == null || defaultSmppPduResponse == null) {
return resultPduResponse;
}
SmppPduResponse resultSmppPduResponse = pduReqHandler.handlePduRequest(smppPduRequest, defaultSmppPduResponse);
if (resultSmppPduResponse == null) {
return null;
}
PduResponse convertedPduResponse = ApiToPduConverter.convertToPduResponse(resultSmppPduResponse);
if (convertedPduResponse == null) {
return resultPduResponse;
}
if (!resultPduResponse.getClass().isAssignableFrom(convertedPduResponse.getClass())) {
return resultPduResponse;
}
return convertedPduResponse;
}
}
Wich is added to clowdhopper smpp client like this
SmppSession session = smppClient.bind(SmppSessionConfiguration_instance, SmppSessionHandlerController_instance );
I defined custom interfaces for PduHandler PduRequestHandler and PduResponseHandler which handle special cases of smpp events, you can see that SmppSessionHandlerController just delegate invocations to one of them.
Using method
public PduResponse firePduRequestReceived(PduRequest pduRequest)
defiend in SmppSessionHandler you can send any response you want in synch mode. If you want to do this in asynch mode, return null pduResponse and use SmppSession.sendResponsePdu(Pdu) instead from current or any other thread.
I am trying to run a tcp server that I set up in eclipse but I get the following problem in my console when I try to run it. If I need to add any other Java files than the one I included let me know.
[2012-08-07 09:13:16 - com.Proto1] Dx
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added: Leneter/messaging/dataprocessing/messagequeueing/MessageQueue$1;
at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123)
at com.android.dx.dex.file.DexFile.add(DexFile.java:163)
at com.android.dx.command.dexer.Main.processClass(Main.java:486)
at com.android.dx.command.dexer.Main.processFileBytes(Main.java:455)
at com.android.dx.command.dexer.Main.access$400(Main.java:67)
at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:394)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:245)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:131)
at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:109)
at com.android.dx.command.dexer.Main.processOne(Main.java:418)
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:329)
at com.android.dx.command.dexer.Main.run(Main.java:206)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.android.ide.eclipse.adt.internal.build.DexWrapper.run(DexWrapper.java:180)
at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeDx(BuildHelper.java:703)
at com.android.ide.eclipse.adt.internal.build.builders.PostCompilerBuilder.build(PostCompilerBuilder.java:577)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:321)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:396)
at org.eclipse.core.internal.resources.Project$1.run(Project.java:618)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
at org.eclipse.core.internal.resources.Project.internalBuild(Project.java:597)
at org.eclipse.core.internal.resources.Project.build(Project.java:124)
at com.android.ide.eclipse.adt.internal.project.ProjectHelper.doFullIncrementalDebugBuild(ProjectHelper.java:1000)
at com.android.ide.eclipse.adt.internal.launch.LaunchConfigDelegate.launch(LaunchConfigDelegate.java:147)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:855)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:704)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1047)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1251)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
[2012-08-07 09:13:16 - com.Proto1] Dx 1 error; aborting
[2012-08-07 09:13:16 - com.Proto1] Conversion to Dalvik format failed with error 1
Java
import eneter.messaging.diagnostic.EneterTrace;
import eneter.messaging.endpoints.typedmessages.*;
import eneter.messaging.messagingsystems.messagingsystembase.*;
import eneter.messaging.messagingsystems.tcpmessagingsystem.TcpMessagingSystemFactory;
import eneter.net.system.EventHandler;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;
public class AndroidNetCommunicationClientActivity extends Activity {
// Request message type
// The message must have the same name as declared in the service.
// Also, if the message is the inner class, then it must be static.
public static class MyRequest {
public String Text;
}
// Response message type
// The message must have the same name as declared in the service.
// Also, if the message is the inner class, then it must be static.
public static class MyResponse {
public int Length;
}
// UI controls
private Handler myRefresh = new Handler();
private EditText myMessageTextEditText;
private EditText myResponseEditText;
private Button mySendRequestBtn;
// Sender sending MyRequest and as a response receiving MyResponse.
private IDuplexTypedMessageSender<MyResponse, MyRequest> mySender;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tcp_server);
// Get UI widgets.
myMessageTextEditText = (EditText) findViewById(R.id.messageTextEditText);
myResponseEditText = (EditText) findViewById(R.id.messageLengthEditText);
mySendRequestBtn = (Button) findViewById(R.id.sendRequestBtn);
// Subscribe to handle the button click.
mySendRequestBtn.setOnClickListener(myOnSendRequestClickHandler);
try {
openConnection();
} catch (Exception err) {
EneterTrace.error("Open connection failed.", err);
}
}
#Override
public void onDestroy() {
// Stop listening to response messages.
mySender.detachDuplexOutputChannel();
}
private void openConnection() throws Exception {
// Create sender sending MyRequest and as a response receiving
// MyResponse
IDuplexTypedMessagesFactory aSenderFactory = new DuplexTypedMessagesFactory();
mySender = aSenderFactory.createDuplexTypedMessageSender(
MyResponse.class, MyRequest.class);
// Subscribe to receive response messages.
mySender.responseReceived().subscribe(myOnResponseHandler);
// Create TCP messaging for the communication.
// Note: 10.0.2.2 is a special alias to the loopback (127.0.0.1)
// on the development machine
IMessagingSystemFactory aMessaging = new TcpMessagingSystemFactory();
IDuplexOutputChannel anOutputChannel = aMessaging
.createDuplexOutputChannel("tcp://10.0.2.2:8060/");
// Attach the output channel to the sender and be able to send
// messages and receive responses.
mySender.attachDuplexOutputChannel(anOutputChannel);
}
private void onSendRequest(View v) {
// Create the request message.
MyRequest aRequestMsg = new MyRequest();
aRequestMsg.Text = myMessageTextEditText.getText().toString();
// Send the request message.
try {
mySender.sendRequestMessage(aRequestMsg);
} catch (Exception err) {
EneterTrace.error("Sending the message failed.", err);
}
}
private void onResponseReceived(Object sender,
final TypedResponseReceivedEventArgs<MyResponse> e) {
// Display the result - returned number of characters.
// Note: Marshal displaying to the correct UI thread.
myRefresh.post(new Runnable() {
public void run() {
myResponseEditText.setText(Integer.toString(e
.getResponseMessage().Length));
}
});
}
private EventHandler<TypedResponseReceivedEventArgs<MyResponse>> myOnResponseHandler
= new EventHandler<TypedResponseReceivedEventArgs<MyResponse>>() {
public void onEvent(Object sender,
TypedResponseReceivedEventArgs<MyResponse> e) {
onResponseReceived(sender, e);
}
};
private OnClickListener myOnSendRequestClickHandler = new OnClickListener() {
public void onClick(View v) {
onSendRequest(v);
}
};
}
I deleted an invalid jar file from my build path and my problem was resolved.