I'm a newbie of java programming, and I'm trying to learning.
I have a database mysql and I manage the connection with connection Pool, BoneCP is the library that I use.
The code for create a Pool is this:
BoneCPConfig config = new BoneCPConfig(); // create a new configuration object
config.setJdbcUrl( R.database.url + R.database.dbName ); // set the JDBC url
config.setUsername( R.database.userName ); // set the username
config.setPassword( R.database.password ); // set the password
config.setMinConnectionsPerPartition(2);
config.setMaxConnectionsPerPartition(5);
config.setPartitionCount( 3 );
try{
connectionPool = new BoneCP( config ); // setup the connection pool
}catch( Exception e ){
System.out.println( e );
}
When i need the connection for send query to DB i catch the connection with this line of code:
conn = R.database.connectionPool.getConnection();
I think is all ok at this point and I haven't any errors.
After a min the console say this:
[BoneCP-pool-watch-thread] ERROR com.jolbox.bonecp.BoneCP - Failed to acquire connection to jdbc:mysql://localhost:3306/test_db. Sleeping for 7000 ms. Attempts left: 0
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/test_db
at java.sql.DriverManager.getConnection(DriverManager.java:596)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at com.jolbox.bonecp.BoneCP.obtainRawInternalConnection(BoneCP.java:363)
at com.jolbox.bonecp.BoneCP.obtainInternalConnection(BoneCP.java:269)
at com.jolbox.bonecp.ConnectionHandle.<init>(ConnectionHandle.java:242)
at com.jolbox.bonecp.PoolWatchThread.fillConnections(PoolWatchThread.java:115)
at com.jolbox.bonecp.PoolWatchThread.run(PoolWatchThread.java:82)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
[BoneCP-pool-watch-thread] ERROR com.jolbox.bonecp.CustomThreadFactory - Uncaught Exception in thread BoneCP-pool-watch-thread
java.lang.NoClassDefFoundError: com/jolbox/bonecp/hooks/ConnectionState
at com.jolbox.bonecp.ConnectionHandle.markPossiblyBroken(ConnectionHandle.java:382)
at com.jolbox.bonecp.ConnectionHandle.<init>(ConnectionHandle.java:244)
at com.jolbox.bonecp.PoolWatchThread.fillConnections(PoolWatchThread.java:115)
at com.jolbox.bonecp.PoolWatchThread.run(PoolWatchThread.java:82)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
This is the strange problem!!
Thank very much!!
No suitable driver found for jdbc:mysql://localhost:3306/test_db
This seems to imply that you don't have a java MySQL JDBC driver on your classpath, have a look at the available connectors for MySQL and make sure the appropriate JAR including this driver is on your classpath.
MySQL Connectors
Related
When deploying a Spring Boot application using HikariCP as the connection pool on Appengine, I get some errors related to database (threads), when performing some requests:
Caused by: java.sql.SQLNonTransientConnectionException: Could not create connection to database server.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:1008)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467)
at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:706)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:692)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
... 1 more
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: Can't make API call memcache.Get in a thread that is neither the original request thread nor a thread created by ThreadManager
Then I discovered that AppEngine only allow applications to create threads using its ThreadFactory. So I made sure to configure my Hikari to use AppEngine's Thread factory like the following :
DataSource ds = new HikariDataSource();
try {
final HikariConfig dataSourceConfig = new HikariConfig();
dataSourceConfig.setDriverClassName(applicationProperties.getDatasource()
.getDriverClassName());
dataSourceConfig.setJdbcUrl(applicationProperties.getDatasource()
.getUrl());
dataSourceConfig.setUsername(applicationProperties.getDatasource()
.getUsername());
dataSourceConfig.setPassword(applicationProperties.getDatasource()
.getPassword());
dataSourceConfig.setRegisterMbeans(false);
if (Objects.equal(ProfileResolver.getActiveCloudPlatform(env), ProfileConstants.SPRING_PROFILE_GCP)) {
log.info("[GCP] Set 'com.google.appengine.api.ThreadManager.backgroundThreadFactory()' "
+ "as the instance of the java.util.concurrent.ThreadFactory");
dataSourceConfig.setThreadFactory(ThreadManager.backgroundThreadFactory());
}
ds = new HikariDataSource(dataSourceConfig);
} catch (final Exception e) {
throw new IllegalStateException(e);
}
return ds;
It works on my local appengine (DevServer), But when deployed I get an exception at datasource initialisation, since Appengine's autoscaling modules doesn't allow the use of Background threads.
Is it possible to keep the "autoscaling" ability while using HikariCP on AppEngine ?
The Java 8 runtime doesn't have the same restrictions around threads like prior versions of App Engine. For example, this sample app uses HikariCP to connect to Cloud SQL, and works without a custom thread manager.
I'm trying to set up a single connection pool which references our primary database until said becomes unhealthy and after which the pool fails over, filling up against our backup. Until now I've been taking advantage of an undocumented feature of our application server's JNDI datasources which allows me to specify 2 JDBC connection URL strings thusly:
jdbc:oracle:thin:#primary:1521:DB|jdbc:oracle:thin:#backup:1521:DB
I have the following code, no doubt partially cribbed from some Hikari/Spring documentation months ago.
#Bean(name = "dataSource")
public DataSource dataSource() throws SQLException {
String userName = "user";
String password = "pass";
String server = "primary";
String database = "DB";
OracleDataSource ods = new OracleDataSource();
ods.setServerName(server);
ods.setDatabaseName(database);
ods.setNetworkProtocol("tcp");
ods.setUser(userName);
ods.setPassword(password);
ods.setPortNumber(1521);
ods.setDriverType("thin");
HikariConfig hkConfig = new HikariConfig();
hkConfig.setDataSource(ods);
hkConfig.setDataSourceClassName("oracle.jdbc.pool.OracleDataSource");
hkConfig.setPoolName("springHikariRECPool");
hkConfig.setMaximumPoolSize(15);
hkConfig.setMinimumIdle(3);
hkConfig.setMaxLifetime(1800000); // 30 minutes
return new HikariDataSource(hkConfig);
}
My Google-Fu has failed me. Does anyone have any ideas on how to achieve the failover functionality?
Edit - re. #M. Deinum "Remove the construction of the OracleDataSource and just set the url on the HikariConfig."
HikariConfig hkConfig = new HikariConfig();
hkConfig.setUsername(userName);
hkConfig.setPassword(password);
hkConfig.setJdbcUrl("jdbc:oracle:thin:#primary:1521:DB|jdbc:oracle:thin:#backup:1521:DB");
hkConfig.setDataSourceClassName("oracle.jdbc.pool.OracleDataSource");
hkConfig.setPoolName("springHikariRECPool");
hkConfig.setMaximumPoolSize(15);
hkConfig.setMinimumIdle(3);
hkConfig.setMaxLifetime(1800000);
Unfortunately, this yields a fairly long stack, the base of which is this:
Caused by: java.sql.SQLException: Invalid Oracle URL specified: OracleDataSource.makeURL
at oracle.jdbc.pool.OracleDataSource.makeURL(OracleDataSource.java:1277)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:185)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:356)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:199)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:444)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:515)
Investigation of that here - Hikaricp Oracle connection issue and here - Invalid Oracle URL specified: OracleDataSource.makeURL causes me to add some additional properties.
hkConfig.addDataSourceProperty("portNumber", "1521");
hkConfig.addDataSourceProperty("driverType", "thin");
Which now bombs with:
Caused by: java.net.UnknownHostException: null: Name or service not known
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:117)
at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:370)
The JDBC URL is no longer being referenced, it would appear. . . and, confirmed - I took the backup connection string out of the URL and reached the same exception with a standard, single server connection. So it appears the ODS demands to be configured as originally done (or mimicked with Properties).
As a last gasp for this method, I tried setting the serverName property to "primary|standby" and, as expected, that blew up as well:
Caused by: java.net.UnknownHostException: primary|backup: Name or service not known
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:117)
at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:411)
... 56 more
I have failed to note thus far that I am using ojdbc7.jar.
Use standard way. Support for DataGuard, failover, RAC is native feature of Oracle JDBC drivers.
1st use tnsnames.ora as described here "How to connect JDBC to tns oracle"
2nd use multiple hosts in tnsnames.ora:
DB =
(DESCRIPTION=
(ADDRESS_LIST=
(LOAD_BALANCE=off)
(FAILOVER=ON)
(ADDRESS=(PROTOCOL=TCP)( HOST=primary)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)( HOST=backup)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=DB)))
Oracle JDBC driver will connect to the host, where database is "OPEN" and the service named "DB" is present.
PS: you can also pass the whole tns connection string to the jdbc driver directly as a parameter.
url="jdbc:oracle:thin:#(DESCRIPTION=
(LOAD_BALANCE=on)
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=primary)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=secondary)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=DB)))"
I am trying to connect to Orient DB running in Distributed mode and I am getting following error
Exception in thread "main" com.orientechnologies.orient.core.exception.OSerializationException:
Error on unmarshalling field 'members' in record #-1:-1 with value:
I am using :
OrientDB Version: orientdb-community-1.7-rc and
JDBC Version: OrientDB JDBC Driver 1.7-rc2-SNAPSHOT ALL
Below is my code:
public static void main(String[] args) throws ClassNotFoundException, SQLException {
Class.forName("com.orientechnologies.orient.jdbc.OrientJdbcDriver");
Connection connection = (OrientJdbcConnection) DriverManager.getConnection("jdbc:orient:remote:localhost/VANET", "root", "*****");
}
database "VANET" as per the DB connection String above, is present in OrientDB and I able to access and create classes in VANET using OrientDB Studio.
I have already referred to and tried code as per. But no luck yet.
Please help me resolve this issue.
A little more details about the error I am getting
Exception in thread "main" com.orientechnologies.orient.core.exception.OSerializationException: Error on unmarshalling field 'members' in record #-1:-1 with value:
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.orientechnologies.common.log.OLogManager.exception(OLogManager.java:162)
at com.orientechnologies.orient.core.serialization.serializer.record.string.ORecordSerializerSchemaAware2CSV.fromString(ORecordSerializerSchemaAware2CSV.java:543)
at com.orientechnologies.orient.core.serialization.serializer.record.string.ORecordSerializerStringAbstract.fromStream(ORecordSerializerStringAbstract.java:80)
at
... * <I removed these lines >* ...
at com.orientechnologies.orient.jdbc.OrientJdbcConnection.<init>(OrientJdbcConnection.java:49)
at com.orientechnologies.orient.jdbc.OrientJdbcDriver.connect(OrientJdbcDriver.java:46)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at org.poc.orientdb.jdbc.OrientJDBC.main(OrientJDBC.java:49)
Caused by: java.lang.NullPointerException
at com.orientechnologies.orient.core.record.ORecordSchemaAwareAbstract.getSchemaClass(ORecordSchemaAwareAbstract.java:82)
at com.orientechnologies.orient.core.serialization.serializer.record.string.ORecordSerializerSchemaAware2CSV.fromString(ORecordSerializerSchemaAware2CSV.java:445)
... 28 more
my local neo4j db path is C:\neo4j-community-1.9.3_bup
I have created a simple java program to connect to neo4j DB and insert some nodes.
But after insertion when
i am trying to retrive these nodes through Neo4jDataBrower these are not listing.
The code i have used is taken from neo4j portal itself,
String DB_PATH = "C\\neo4j-community-1.9.3_bup";
Map<String, String> config = new HashMap<String, String>();
config.put( "neostore.nodestore.db.mapped_memory", "10M" );
config.put( "string_block_size", "60" );
config.put( "array_block_size", "300" );
graphDb = new GraphDatabaseFactory().newEmbeddedDatabaseBuilder(DB_PATH).setConfig(config).newGraphDatabase();
registerShutdownHook( graphDb );
Transaction tx = graphDb.beginTx();
try
{
firstNode = graphDb.createNode();
firstNode.setProperty( "message", "Hello, " );
secondNode = graphDb.createNode();
secondNode.setProperty( "message", "World!" );
relationship = firstNode.createRelationshipTo( secondNode, RelTypes.KNOWS );
relationship.setProperty( "message", "brave Neo4j " );
tx.success();
}
finally
{
tx.finish();
}
Why its not working?
please suggest me..is there some problem vth path i have given or problem vth code?
Hi Werner,
The runtime exception is
Exception in thread "main" java.lang.RuntimeException:
org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.StoreLockerLifecycleAdapter#406199' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:280)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:106)
at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:88)
at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:207)
at com.Neo4J.src.EmbeddedNeo4j.createDb(EmbeddedNeo4j.java:54)
at com.Neo4J.src.EmbeddedNeo4j.main(EmbeddedNeo4j.java:38)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.StoreLockerLifecycleAdapter#406199' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:258)
... 5 more
Caused by: org.neo4j.kernel.StoreLockException: Could not create lock file
at org.neo4j.kernel.StoreLocker.checkLock(StoreLocker.java:74)
at org.neo4j.kernel.StoreLockerLifecycleAdapter.start(StoreLockerLifecycleAdapter.java:40)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491)
... 7 more
New Log,
Exception in thread "main" java.lang.RuntimeException:
org.neo4j.kernel.lifecycle.LifecycleException:
Component 'org.neo4j.kernel.impl.transaction.TxManager#1827284' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:280)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:106)
at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:88)
at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:207)
at com.Neo4J.src.EmbeddedNeo4j.createDb(EmbeddedNeo4j.java:57)
at com.Neo4J.src.EmbeddedNeo4j.main(EmbeddedNeo4j.java:41)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component
'org.neo4j.kernel.impl.transaction.TxManager#1827284' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:258)
... 5 more
Caused by: org.neo4j.graphdb.TransactionFailureException:
Unable to start TM, no active tx log file found but found either tm_tx_log.1 or tm_tx_log.2 file, please set one of them as active or remove them.
at org.neo4j.kernel.impl.transaction.TxManager.openLog(TxManager.java:750)
at org.neo4j.kernel.impl.transaction.TxManager.start(TxManager.java:138)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491)
... 7 more
New exception,
Sep 27, 2013 11:09:27 AM org.neo4j.server.logging.Logger log
INFO: Starting Neo Server on port [7474] with [40] threads available
2013-09-27 11:09:27.665:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
Sep 27, 2013 11:09:27 AM org.neo4j.server.logging.Logger log
INFO: Using database at C:\neo4j-community-1.9.3_bup\data\graph.db
Exception in thread "main" java.lang.NoSuchFieldError: remote_shell_enabled
at org.neo4j.server.database.Database.createDatabase(Database.java:77)
at org.neo4j.server.database.Database.<init>(Database.java:55)
at org.neo4j.server.NeoServerWithEmbeddedWebServer.startDatabase(NeoServerWithEmbeddedWebServer.java:179)
at org.neo4j.server.NeoServerWithEmbeddedWebServer.start(NeoServerWithEmbeddedWebServer.java:93)
at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:87)
at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:76)
at com.Neo4J.src.EmbeddedNeo4j.createDb(EmbeddedNeo4j.java:69)
at com.Neo4J.src.EmbeddedNeo4j.main(EmbeddedNeo4j.java:41)
C\\neo4j-community-1.9.3_bup is not a valid path. It should be C:\\neo4j-community-1.9.3_bup.
But still, it may not be valid, if you are pointing to your Neo4J installation directory, and not the database directory itself. If that is the case, the path should be C:\\neo4j-community-1.9.3_bup\data\graph.db
Edited:
To prevent the locking situation, stop your running Neo4J instance, and start your own database with its own web console, by inserting these lines after the line where you initialize your embedded database:
Configurator configurator = new ServerConfigurator((GraphDatabaseAPI)graphDb);
configurator.configuration().setProperty(Configurator.WEBSERVER_ADDRESS_PROPERTY_KEY, "127.0.0.1");
configurator.configuration().setProperty(Configurator.WEBSERVER_PORT_PROPERTY_KEY, 7474);
WrappingNeoServerBootstrapper bootstrapper = new WrappingNeoServerBootstrapper((GraphDatabaseAPI)graphDb, configurator);
bootstrapper.start();
I'm getting an error while attempting to get a connection to a local(same computer) database "oracle.net.ns.NetException: Got minus one from a read call".
here's the code
OracleDataSource ods = new OracleDataSource();
String jdbcURL = "jdbc:oracle:thin:username/userpass#mylinux:1522:sid";
ods.setURL(jdbcURL);
Connection conn = ods.getConnection();
Caused by: oracle.net.ns.NetException: Got minus one from a read call
at oracle.net.ns.Packet.receive(Packet.java:286)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:287)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1054)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308)
... 8 more
What am I missing here ? My brief search on the net didn't turn up anything helpful. I'm linking ojdbc6.jar with the test app.
I can connect just fine from sqlplus using the above credentials.
UPDATE 1 : Am getting the following exception stack trace
Exception in thread "main" java.sql.SQLRecoverableException: IO Error: Got minus one from a read call
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:419)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:536)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:228)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:280)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:207)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:157)
at TestOraConn.main(TestOraConn.java:17)
Caused by: oracle.net.ns.NetException: Got minus one from a read call
at oracle.net.ns.Packet.receive(Packet.java:286)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:287)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1054)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308)
... 8 more
UPDATE 2:
lsnrctl status
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 28-MAY-2013 22:34:16
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused