Given Wildfly 10.1 with session persistence configured as
<subsystem xmlns="urn:jboss:domain:undertow:3.1">
...
<servlet-container name="default">
<jsp-config x-powered-by="false"/>
<persistent-sessions path="ssn" relative-to="jboss.server.tmp.dir"/>
<websockets/>
</servlet-container>
...
</subsystem>
After server shutdown I have a file named after my WAR file. Contents is somehow readable, I see a hashmap and session values inside.
I'd like to deserialize it.
After digging in Wildfly sources I've found the only class able to read session from file: org.wildfly.extension.undertow.DiskBasedModularPersistentSessionManager
But when I try to read file from src:
DiskBasedModularPersistentSessionManager sessionManager = new DiskBasedModularPersistentSessionManager("C:/tmp", "");
sessionManager.start(null);
sessionManager.baseDir = new File("c:/tmp");
sessionManager.loadSerializedSessions("www.war");
It throws me:
Exception in thread "main" java.io.UTFDataFormatException: Invalid byte
at org.jboss.marshalling.UTFUtils.readUTFBytes(UTFUtils.java:173)
at org.jboss.marshalling.river.RiverUnmarshaller.readUTF(RiverUnmarshaller.java:1833)
at org.jboss.marshalling.river.RiverUnmarshaller.doReadClassDescriptor(RiverUnmarshaller.java:959)
at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1255)
at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276)
at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:41)
at org.wildfly.extension.undertow.DiskBasedModularPersistentSessionManager.loadSerializedSessions(DiskBasedModularPersistentSessionManager.java:115)
at org.wildfly.extension.undertow.DiskBasedModularPersistentSessionManager.main(DiskBasedModularPersistentSessionManager.java:134)
After investigating the cause a little bit, I got an answer that this is some kind of mechanism to protect session migration from one major version to another. But in my case file is generated by same version of Wildfly and same lib versions.
jboss-logging-3.3.0.Final.jar
jboss-marshalling-1.4.11.Final.jar
jboss-marshalling-river-1.4.11.Final.jar
jboss-msc-1.2.6.Final.jar
undertow-servlet-1.4.0.Final.jar
wildfly-undertow-10.1.0.Final.jar
xnio-api-3.4.0.Final.jar
How can I read the session content?
Related
I have a WildFly application with an embedded ActiveMQ Artemis and I can't seem to figure how to debug it. It seems to connect fine since I'm getting no errors in the log, but I'm unable to read any queues. There is no error but nothing is happening.
I'm running the Quarkus JMS client 1.03 which is using org.apache.activemq » artemis-jms-client 2.19. The server is running WildFly 26.1 with the embedded ActiveMQ Artemis server 2.19.1 so the client and server should be compatible. However, I'm not sure if I've configured it correctly. I'm using the standalone-full.xml.
For testing I've added a user test1:
bash-4.4$ ./add-user.sh
What type of user do you wish to add?
a) Management User (mgmt-users.properties)
b) Application User (application-users.properties)
(a): b
Enter the details of the new user to add.
Using realm 'ApplicationRealm' as discovered from the existing property files.
Username : test1
Password recommendations are listed below. To modify these restrictions edit the add-user.properties configuration file.
- The password should be different from the username
- The password should not be one of the following restricted values {root, admin, administrator}
- The password should contain at least 8 characters, 1 alphabetic character(s), 1 digit(s), 1 non-alphanumeric symbol(s)
Password :
WFLYDM0098: The password should be different from the username
Are you sure you want to use the password entered yes/no? yes
Re-enter Password :
What groups do you want this user to belong to? (Please enter a comma separated list, or leave blank for none)[ ]: guest
About to add user 'test1' for realm 'ApplicationRealm'
Is this correct yes/no? yes
Is this new user going to be used for one AS process to connect to another AS process?
e.g. for a slave host controller connecting to the master or for a Remoting connection for server to server Jakarta Enterprise Beans calls.
yes/no? yes
To represent the user add the following to the server-identities definition <secret value="dGVzdDE=" />
This is the log for creating that user. In my standalone-full.xml I have the role guest for ActiveMQ Artemis and the queue prices set up:
<subsystem xmlns="urn:jboss:domain:messaging-activemq:13.1">
<server name="default">
...
<security-setting name="#">
<role name="guest" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
</security-setting>
...
<address-setting name="jms.queue.prices" expiry-address="jms.queue.ExpiryQueue" redelivery-delay="1000" max-delivery-attempts="0"/>
...
<jms-queue name="prices" entries="java:/jms/queue/prices" durable="true"/>
...
</server>
</subsystem>
My Quarkus client tries to connect with the following:
quarkus.artemis.url=tcp://localhost:8080
quarkus.artemis.username=test1
quarkus.artemis.password=test1
It has a consumer:
#Override
public void run() {
try (JMSContext context = connectionFactory.createContext(JMSContext.AUTO_ACKNOWLEDGE)) {
JMSConsumer consumer = context.createConsumer(context.createQueue("prices"));
while (true) {
Message message = consumer.receive();
if (message == null) {
// receive returns `null` if the JMSConsumer is closed
return;
}
lastPrice = message.getBody(String.class);
}
} catch (JMSException e) {
throw new RuntimeException(e);
}
}
and a producer:
#Override
public void run() {
try (JMSContext context = connectionFactory.createContext(JMSContext.AUTO_ACKNOWLEDGE)) {
context.createProducer().send(context.createQueue("prices"), Integer.toString(random.nextInt(100)));
}
}
It seem to connect just fine. I can see in the Quarkus log:
2022-12-08 14:29:59,596 DEBUG [org.apa.act.art.cor.cli.imp.ClientSessionFactoryImpl] (pool-10-thread-1) Trying reconnection attempt 0/1
2022-12-08 14:29:59,596 DEBUG [org.apa.act.art.cor.cli.imp.ClientSessionFactoryImpl] (pool-10-thread-1) Trying to connect with connectorFactory=org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory#6096907d and currentConnectorConfig: TransportConfiguration(name=null, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=8080&host=localhost
2022-12-08 14:29:59,596 DEBUG [org.apa.act.art.cor.rem.imp.net.NettyConnector] (pool-10-thread-1) Connector NettyConnector [host=localhost, port=8080, httpEnabled=false, httpUpgradeEnabled=false, useServlet=false, servletPath=/messaging/ActiveMQServlet, sslEnabled=false, useNio=true] using native epoll
2022-12-08 14:29:59,596 DEBUG [org.apa.act.art.cor.client] (pool-10-thread-1) AMQ211002: Started EPOLL Netty Connector version 4.1.82.Final to localhost:8080
2022-12-08 14:29:59,597 DEBUG [org.apa.act.art.cor.rem.imp.net.NettyConnector] (pool-10-thread-1) Remote destination: localhost/127.0.0.1:8080
2022-12-08 14:29:59,598 DEBUG [org.apa.act.art.cor.rem.imp.net.NettyConnector] (Thread-1 (ActiveMQ-client-netty-threads)) Added ActiveMQClientChannelHandler to Channel with id = 6339db8b
2022-12-08 14:29:59,598 DEBUG [org.apa.act.art.cor.cli.imp.ClientSessionFactoryImpl] (pool-10-thread-1) Connected with the currentConnectorConfig=TransportConfiguration(name=null, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=8080&host=localhost
2022-12-08 14:29:59,599 DEBUG [org.apa.act.art.cor.cli.imp.ClientSessionFactoryImpl] (pool-10-thread-1) Reconnection successful
So it seems to be working fine, but I can't seem to send or consume from the queue.
Answers to Justin questions in the comments
Have you tried adding ?httpUpgradeEnabled=true
yes no change
quarkus.artemis.url=tcp://localhost:8080?httpUpgradeEnabled=true
Can you check the consumer-count
Actually there does not even seem to be a session active. I tried to close the connection for my test user but it shown me a dialog "no connection for that user" So maybe it's not even connecting as I thought
Why do you suspect the problem is with the user
I thought it might have something to do with some permission error. I was not sure if I was suppost to add the user to the "guest" group or not
But since I have in my config
<security-setting name="#">
<role name="guest" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
</security-setting>
EDIT2. Actually I see now in the log that quarkus seems to be missing permission for creating a consumer. So i guess "guest" role is not the correct one.
I assume that was corrected
We have a J2EE application on a payara 5.2020 server that executes a long running query (PL/SQL that executes for a couple of hours).
To avoid a timeout exception, we use this sentence at StatementLevel:
statement.setQueryTimeout(0);
This works using Oracle jdbc drivers version 12c, but when we have migrated to Oracle 18c, and we changed the driver to the version 18c, the query execution stops after 15 minutes with this exception. The code works with Oracle 12 and Oracle 18 is the change in the driver's jar what brings up the problem.
The problem has been reproduced in Linux and Windows machines:
2021-06-14T07:50:01.762+0200|SEVERE: java.sql.SQLRecoverableException: Error de E/S: Socket read interrupted
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:946)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1136)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3640)
at oracle.jdbc.driver.T4CCallableStatement.executeInternal(T4CCallableStatement.java:1318)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3752)
at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4242)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1079)
at com.sun.gjc.spi.base.PreparedStatementWrapper.execute(PreparedStatementWrapper.java:532)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.gjc.spi.jdbc40.ProfiledConnectionWrapper40$1.invoke(ProfiledConnectionWrapper40.java:437)
at com.sun.proxy.$Proxy324.execute(Unknown Source)
at org.apache.jsp.index_jsp.callPL(index_jsp.java:49)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:108)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1636)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:259)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:757)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:577)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:158)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:520)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:217)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:156)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:109)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:524)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.io.InterruptedIOException: Socket read interrupted
at oracle.net.nt.TimeoutSocketChannel.handleInterrupt(TimeoutSocketChannel.java:262)
at oracle.net.nt.TimeoutSocketChannel.read(TimeoutSocketChannel.java:184)
at oracle.net.ns.NSProtocolNIO.doSocketRead(NSProtocolNIO.java:544)
at oracle.net.ns.NIOPacket.readHeader(NIOPacket.java:234)
at oracle.net.ns.NIOPacket.readPacketFromSocketChannel(NIOPacket.java:174)
at oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:122)
at oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:100)
at oracle.net.ns.NIONSDataChannel.readDataFromSocketChannel(NIONSDataChannel.java:86)
at oracle.jdbc.driver.T4CMAREngineNIO.prepareForUnmarshall(T4CMAREngineNIO.java:762)
at oracle.jdbc.driver.T4CMAREngineNIO.unmarshalUB1(T4CMAREngineNIO.java:427)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:394)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:255)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:610)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:249)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:82)
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:924)
It seems the transport layer has been migrated to java.nio and the method setQueryTimeout is no longer
Things We've tried:
Setting the default Statement timeout to -1 in the JDBC Connection Pool Advanced Attributes screen in payara console.
Trying to set the time directly in the connection with conn.setNetworkTimeout(Executors.newFixedThreadPool(1), 0) didn't make any effect.
In different sources we have found that these properties below should affect the network timeout evaluation. We set them as JVM properties for payara startup (-Doracle.net.CONNECT_TIMEOUT=xxx) and as JDBC Connection Pool Properties, both cases with values 0 and -1. Didn't work in any case.
oracle.net.CONNECT_TIMEOUT
oracle.net.READ_TIMEOUT
oracle.jdbc.ReadTimeout
Sources:
Oracle 18c Net services best practices
Oracle 18c java jdbc reference. E.1.5 Using JDBC with Firewalls
4.- As we are accessing the DataSource through payara DataSource pool, we cannot cast the com.sun.gjc.spi.jdbc40.DataSource40 (class provided by payara) to an OracleDataSource, but we created the DataSorce programatically to set the connection properties as shown here and setting the properties seen in the image above but it doesn't work:
public static Properties oracleProperties() {
// Already tried -1 and 0
Properties properties = new Properties();
properties.put("Oracle.net.CONNECT_TIMEOUT", 0);
properties.put("Oracle.net.READ_TIMEOUT", 0);
properties.put("Oracle.jdbc.ReadTimeout", 0);
return properties;
}
public static OracleDataSource createDataSource() throws Exception {
OracleDataSource ods = new OracleDataSource();
ods.setURL("jdbc:oracle:thin:#itauc4602x:1521/BDExp");
ods.setUser("enevac");
ods.setPassword("enevac");
ods.setDataSourceName("OracleXADataSource");
ods.setLoginTimeout(0);
// default connection properties to avoid timeoutException
ods.setConnectionProperties(oracleProperties());
return ods;
}
Has anyone faced this problem, any idea on how to avoid the timeOut restriction?
Why 15 minutes?, according to the reference, the default value for oracle.net.ReadTimeout is 10 minutes.
Update:
To explain in more detail why I think the problem is in the driver and why I discard other possible origins of the exception, I assume the timeout can be raised from three sources:
Network timeout: I discard it cause I'm testing a payara server in my local machine against the development database, with no firewall in between.
Database server: the DBA has checked the Oracle net services configuration and there's no limit set that explains the 15 minutes cut. Besides, in these case, an SQLException would be expected with some kind of ORA-xxx error code.
JDBC: this can be set at connection level, statement level and transaction level. As I said at the beginning, the code works with oracle 12c drivers against Oracle 12 and Oracle 18 servers, it was the change of the driver's jar what make the code stop working.
Finally the problem was fixed configuring in the payara pool the "connectionProperties" custom property of the OracleDataSource. As #ibre5041 pointed, setting the property oracle.jdbc.javaNetNio=false changes the transport layer used by the driver and it starts working as the oracle 12c previous version.
According to Oracle reference, the OracleDataSource implementors can receive the connection properties as a java.util.Properties object.
Table 8-2 Oracle Extended Data Source Properties
Name: connectionProperties
Type: java.util.Properties
Description: Specifies the connection properties.
To set a multivalued property to the jdbc pool in the Payara Admin Console, you have to set the properties as (prop1=value1,prop2=value2), (Thank you again Ondro Mihályi). So in our case we set:
connectionProperties = (oracle.jdbc.ReadTimeout=0, oracle.jdbc.javaNetNio=false)
As a summary of what works and doesn't using Oracle 18c jdbc driver (every step tested separately)::
Setting timeout at statement level doesn't work:
statement.setQueryTimeout(0)
Setting timeout at connection level, with -1 or 0, doesn't work:
conn.setNetworkTimeout(Executors.newFixedThreadPool(1), timeout in ms)
Setting timeout properties programmatically in the java.util.connection using the OracleDataSource makes it work as indicated in the question.
Setting timeout properties as JVM properties makes it work if the limit is below 15min, but if you set a value > 15 minutes the exceptions is thrown, so setting to 0 or -1 has no effect:
So this makes the query stop after 10 secs:
-Doracle.net.CONNECT_TIMEOUT=10000 -Doracle.net.READ_TIMEOUT=10000 -Doracle.jdbc.ReadTimeout=10000
But with this stops after 15 minutes:
-Doracle.net.CONNECT_TIMEOUT=-1 -Doracle.net.READ_TIMEOUT=-1 -Doracle.jdbc.ReadTimeout=-1
Setting oracle.net.keepAlive=true as JVM property as #Nirmala suggested doesn’t work.
Setting oracle.jdbc.javaNetNio=false as JVM property as #ibre5041 makes it work. So it points to some problem with the java.nio transport layer.
Anyway, we opened a support issue to Oracle, cause the jdbc api statement.setQueryTimeout(0) should work without having to configure the datasource, I'll put the response when the case is closed.
The query execution could be stopped because of default tcp connection timeout. Can you set keepalive property "oracle.net.keepAlive" to “true” and verify?
I have a docker container running the gremlin-server.
It was started via:
./bin/gremlin-server.sh conf/gremlin-server/gremlin-server.yaml
From within a docker container, running this image:
https://hub.docker.com/r/janusgraph/janusgraph
The server is up and is listening at port 8182
$ docker ps
6019adda6081 janusgraph/janusgraph "docker-entrypoint.s…" 2 days ago Up 26 hours 0.0.0.0:8182->8182/tcp
I am interested in using a schema and indexes.
Janus offers this here: https://docs.janusgraph.org/basics/schema/
The following Is the configuration I use to attempt to connect to the gremlin-server:
AbstractConfiguration config = new BaseConfiguration();
config.setListDelimiter('/');
// contents of conf/remote-graph.properties
config.setProperty("gremlin.remote.driver.sourceName", "g");
config.setProperty("gremlin.remote.remoteConnectionClass", "org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection");
// contents of conf/remote-objects.yaml:
config.setProperty("clusterConfiguration.hosts", databaseUrl);
config.setProperty("clusterConfiguration.port", 8182);
config.setProperty("clusterConfiguration.serializer.className", "org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0/");
config.setProperty("storage.backend", "cql");
config.setProperty("clusterConfiguration.serializer.config.ioRegistries", "org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry");
When I call
GraphTraversalSource g = traversal().withRemote(config);
I get a traversal source and everything seems fine. However, to use the management stuff that Janus provides, I seem to need a JanusGraphManagement object. I cannot get the generic Graph object above and cast it to a JanusGraph. The docs suggest using a JanusGraphFactory: https://docs.janusgraph.org/basics/configuration/#janusgraphfactory
So I call
JanusGraph janusGraph = JanusGraphFactory.open(config);
I get the following stack trace:
Exception in thread "main" java.lang.IllegalArgumentException: Could not find implementation class: org.janusgraph.diskstorage.cql.CQLStoreManager
at org.janusgraph.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:60)
at org.janusgraph.diskstorage.Backend.getImplementationClass(Backend.java:440)
at org.janusgraph.diskstorage.Backend.getStorageManager(Backend.java:411)
at org.janusgraph.graphdb.configuration.builder.GraphDatabaseConfigurationBuilder.build(GraphDatabaseConfigurationBuilder.java:50)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:161)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:132)
at org.janusgraph.core.JanusGraphFactory.open(JanusGraphFactory.java:112)
at com.activitystream.database.GraphMigration.migrateDatabase(GraphMigration.java:69)
at com.activitystream.runners.persistence.DataStores.migrateDatabase(DataStores.java:27)
at com.activitystream.runners.persistence.EntityPersistenceRunner.main(EntityPersistenceRunner.java:23)
Caused by: java.lang.ClassNotFoundException: org.janusgraph.diskstorage.cql.CQLStoreManager
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:315)
at org.janusgraph.util.system.ConfigurationUtil.instantiate(ConfigurationUtil.java:56)
... 9 more
Is it possible to modify the schema over a remote connection?
If it is not possible, how can one modify the schema?
Any insight would be appreciated.
You basically have two choices - either:
Interact with your JanusGraphManagement object by way of scripts sent to Gremlin Server (typically by way of a session but I guess you could package an entire "management script" together and submit it as one request) or
Bypass Gremlin Server and instantiation your JanusGraphManagement object locally as directed in the JanusGraph documentation.
There is no way to have return a JanusGraphManagement to your client as it is not a serializable object that can be sent back from the server.
I am trying to implement a distributed system in Infinispan and I wanted to get the key associated with the local node. I was trying to implement this by utilizing the KeyAffinityService but I get a NullPointerException. I was hoping if someone can help me figure my mistake.
Code snippet
// Create the affinity service to find the Key for the manager
KeyAffinityService keyAffinityService = KeyAffinityServiceFactory.newLocalKeyAffinityService(
cache,
(KeyGenerator)new RndKeyGenerator(),
Executors.newSingleThreadExecutor(),
100);
The implementation of cache is done as following:
EmbeddedCacheManager manager = new DefaultCacheManager();
try{
manager = new DefaultCacheManager("democluster.xml");
}catch(IOException e){}
Cache<Integer, String> cache = manager.getCache();
Xml file
<infinispan
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:infinispan:config:5.1 http://www.infinispan.org/schemas/infinispan-config-5.1.xsd"
xmlns="urn:infinispan:config:5.1">
<global>
<transport clusterName="demoCluster"/>
<globalJmxStatistics enabled="true"/>
</global>
<namedCache name="clusteredCache">
<clustering mode="distributed">
<hash numOwners="1" >
<groups enabled="true"/>
</hash>
</clustering>
</namedCache>
</infinispan>
Error:
Exception in thread "main" java.lang.NullPointerException
at org.infinispan.affinity.KeyAffinityServiceFactory.newLocalKeyAffinityService(KeyAffinityServiceFactory.java:95)
at org.infinispan.affinity.KeyAffinityServiceFactory.newLocalKeyAffinityService(KeyAffinityServiceFactory.java:104)
at SimpleCache.start(SimpleCache.java:46)
at SimpleCache.main(SimpleCache.java:96)
I was wondering if anyone had encountered anything similar or might have any ideas regarding this problem.
You are using the wrong cache, you should be doing
Cache<Integer, String> cache = manager.getCache("clusteredCache");
KeyAffinityService only works with a distributed cache, and the default cache is local-only (because you don't have a <default> element in your configuration).
I have a jBoss 5.1.0-GA running a server, it was running find. But I copied whole jboss to another server, (by using tar). When I start new jBoss, it give a "user null is NOT authenticated", here is the stack trace
[ExceptionUtil]
ConnectionFactoryEndpoint[jboss.messaging.connectionfactory:service=ConnectionFactory]
createFailoverConnectionDelegate [nb-z2y983bh-1-4b8983bh-kwpr33-100j3]
javax.jms.JMSSecurityException: User null is NOT authenticated
at
org.jboss.jms.server.jbosssx.JBossASSecurityMetadataStore.authenticate(JBossASSecurityMetadataStore.java:223)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
at javax.management.StandardMBean.invoke(StandardMBean.java:391)
at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy260.authenticate(Unknown Source)
at
org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegateInternal(ServerConnectionFactoryEndpoint.java:233)
at
org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegate(ServerConnectionFactoryEndpoint.java:171)
at
org.jboss.jms.server.endpoint.advised.ConnectionFactoryAdvised.org$jboss$jms$server$endpoint$advised$ConnectionFactoryAdvised$createConnectionDelegate$aop(ConnectionFactoryAdvised.java:108)
at
org.jboss.jms.server.endpoint.advised.ConnectionFactoryAdvised.createConnectionDelegate(ConnectionFactoryAdvised.java)
at
org.jboss.jms.wireformat.ConnectionFactoryCreateConnectionDelegateRequest.serverInvoke(ConnectionFactoryCreateConnectionDelegateRequest.java:91)
at
org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke(JMSServerInvocationHandler.java:143)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:891)
at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106)
at org.jboss.remoting.Client.invoke(Client.java:1724)
at org.jboss.remoting.Client.invoke(Client.java:629)
at
org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientConnectionFactoryDelegate$createConnectionDelegate$aop(ClientConnectionFactoryDelegate.java:171)
at
org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.invokeTarget(ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
at
org.jboss.jms.client.container.StateCreationAspect.handleCreateConnectionDelegate(StateCreationAspect.java:81)
at
org.jboss.aop.advice.org.jboss.jms.client.container.StateCreationAspect_z_handleCreateConnectionDelegate_31070867.invoke(StateCreationAspect_z_handleCreateConnectionDelegate_31070867.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at
org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createConnectionDelegate(ClientConnectionFactoryDelegate.java)
at
org.jboss.jms.client.JBossConnectionFactory.createConnectionInternal(JBossConnectionFactory.java:205)
at
org.jboss.jms.client.JBossConnectionFactory.createQueueConnection(JBossConnectionFactory.java:101)
at
org.jboss.jms.client.JBossConnectionFactory.createQueueConnection(JBossConnectionFactory.java:95)
at
org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setupDLQConnection(AbstractDLQHandler.java:137)
at
org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setup(AbstractDLQHandler.java:83)
at
org.jboss.resource.adapter.jms.inflow.dlq.JBossMQDLQHandler.setup(JBossMQDLQHandler.java:48)
at org.jboss.resource.adapter.jms.inflow.JmsActivation.setupDLQ(JmsActivation.java:413)
at org.jboss.resource.adapter.jms.inflow.JmsActivation.setup(JmsActivation.java:351)
at
org.jboss.resource.adapter.jms.inflow.JmsActivation$SetupActivation.run(JmsActivation.java:729)
at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:205)
at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:260)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
12:01:34,859 ERROR [ExceptionUtil]
ConnectionFactoryEndpoint[jboss.messaging.connectionfactory:service=ConnectionFactory]
createFailoverConnectionDelegate [mb-z2y983bh-1-4b8983bh-kwpr33-100j3]
Can somebody help ?
Solved the problem, that was happened when we are going to solve some other problem, that is com.arjuna transaction issue, in that jboss keep throwing messages non stop, to resolve that issue, some posts recommended delete the 'data' folder in jBoss, when we delete that, the hypersonic database script inside the data folder is also deleted, therefore the user Null issue came out, so what we did was restored the hypersonic db script and now it's working fine.
One other possibility is that the data-source specified in the DatabaseServerLoginModule bean, which is configured in "messaging-jboss-beans.xml", does not match the data-source you are using for JMS.
This would probably occur when you have replaced the "hsqldb-persistence-service.xml" file in the "deploy/messaging" directory of your server, with a customized persistence service file configured to the database you wish to use for JMS (e.g. "postgresql-persistence-service.xml").
If you do so, you will need to make sure that the value of the dsJndiName module option of the DatabaseServerLoginModule bean matches the JNDI name of the data-store in the new "-persistence-service.xml" file. Simply replace java:/DefaultDS with your data-source JNDI name (e.g. java:/MysqlDB or whatever).
Reference: http://www.mail-archive.com/jboss-user#lists.sourceforge.net/msg59720.html