我们使用的是quartz-1.5.2。在我们的应用程序中的一个场景中，调度程序正在尝试删除一个作业。
scheduler.deleteJob(jobName, groupName);
我们得到以下异常。
org.quartz.impl.jdbcjobstore.LockException: Failure obtaining db row lock: ORA-01013:
user requested cancel of current operation
[See nested exception: java.sql.SQLTimeoutException: ORA-01013: user requested cancel of current operation ]
at org.quartz.impl.jdbcjobstore.StdRowLockSemaphore.obtainLock(StdRowLockSemaphore.java:155)
at org.quartz.impl.jdbcjobstore.JobStoreCMT.removeJob(JobStoreCMT.java:347)
at org.quartz.core.QuartzScheduler.deleteJob(QuartzScheduler.java:707)
at org.quartz.impl.StdScheduler.deleteJob(StdScheduler.java:273)
* Nested Exception (Underlying Cause) ---------------
java.sql.SQLTimeoutException: ORA-01013: user requested cancel of current operation
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:886)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495)
at weblogic.jdbc.wrapper.PreparedStatement.executeQuery(PreparedStatement.java:135)
at org.quartz.impl.jdbcjobstore.StdRowLockSemaphore.obtainLock(StdRowLockSemaphore.java:137)
at org.quartz.impl.jdbcjobstore.JobStoreCMT.removeJob(JobStoreCMT.java:347)
at org.quartz.core.QuartzScheduler.deleteJob(QuartzScheduler.java:707)
at org.quartz.impl.StdScheduler.deleteJob(StdScheduler.java:273)
我已经调试了 StdRowLockSemaphore.java gainLock 方法
ps = conn.prepareStatement(selectWithLockSQL);
ps.setString(1, lockName);
if(log.isDebugEnabled())
log.debug( "Lock '" + lockName + "' is being obtained: " + Thread.currentThread().getName());
rs = ps.executeQuery();
ps.executeQuery() 中发生超时；
它正在尝试运行一个简单的查询
SELECT * FROM QRTZ_LOCKS WHERE LOCK_NAME = 'TRIGGER_ACCESS' FOR UPDATE;
这并不是一直发生的，当服务器启动时，它运行没有任何问题，几个小时后我们遇到了这个问题。
请找到石英的属性
<prop key="org.quartz.scheduler.instanceName">CargoresScheduler_${cargores_server_type}</prop>
<prop key="org.quartz.scheduler.instanceId">AUTO</prop>
<prop key="org.quartz.threadPool.class">org.quartz.simpl.SimpleThreadPool</prop>
<prop key="org.quartz.threadPool.threadCount">10</prop>
<prop key="org.quartz.threadPool.threadPriority">5</prop>
<prop key="org.quartz.jobStore.misfireThreshold">60000</prop>
请帮助解决问题。
- 更新 -
请找到线程转储。
"apps_QuartzSchedulerThread" id=60 idx=0x104 tid=21586 prio=5 alive, in native
at jrockit/net/SocketNativeIO.readBytesPinned(Ljava/io/FileDescriptor;[BIII)I(Native Method)
at jrockit/net/SocketNativeIO.socketRead(SocketNativeIO.java:32)
at java/net/SocketInputStream.socketRead0(Ljava/io/FileDescriptor;[BIII)I(SocketInputStream.java)
at java/net/SocketInputStream.read(SocketInputStream.java:129)
at oracle/net/ns/Packet.receive(Packet.java:308)
at oracle/net/ns/DataPacket.receive(DataPacket.java:106)
at oracle/net/ns/NetInputStream.getNextPacket(NetInputStream.java:324)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:268)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:190)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:107)
at oracle/jdbc/driver/T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:124)
at oracle/jdbc/driver/T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:80)
at oracle/jdbc/driver/T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1137)[inlined]
at oracle/jdbc/driver/T4CTTIfun.receive(T4CTTIfun.java:350)[optimized]
at oracle/jdbc/driver/T4CTTIfun.doRPC(T4CTTIfun.java:227)
at oracle/jdbc/driver/T4C8Oall.doOALL(T4C8Oall.java:531)[inlined]
at oracle/jdbc/driver/T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)[optimized]
at oracle/jdbc/driver/T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1046)
at oracle/jdbc/driver/OracleStatement.executeMaybeDescribe(OracleStatement.java:1207)
at oracle/jdbc/driver/OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
at oracle/jdbc/driver/OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613)
at oracle/jdbc/driver/OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657)
^-- Holding lock: oracle/jdbc/driver/T4CConnection@0x180655aa0[thin lock]
at oracle/jdbc/driver/OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495)
at weblogic/jdbc/wrapper/PreparedStatement.executeQuery(PreparedStatement.java:135)
at org/quartz/impl/jdbcjobstore/StdRowLockSemaphore.obtainLock(StdRowLockSemaphore.java:137)
at org/quartz/impl/jdbcjobstore/JobStoreCMT.acquireNextTrigger(JobStoreCMT.java:1173)
at org/quartz/core/QuartzSchedulerThread.run(QuartzSchedulerThread.java:233)
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
-- end of trace
"Timer-2" id=61 idx=0x108 tid=21587 prio=5 alive, waiting, native_blocked, daemon
-- Waiting for notification on: java/util/TaskQueue@0x1e7db6800[fat lock]
at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at java/lang/Object.wait(Object.java:485)
at java/util/TimerThread.mainLoop(Timer.java:483)
^-- Lock released while waiting: java/util/TaskQueue@0x1e7db6800[fat lock]
at java/util/TimerThread.run(Timer.java:462)
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
-- end of trace
"apps-NON_CLUSTERED_MisfireHandler" id=62 idx=0x10c tid=21588 prio=5 alive, in native, daemon
at jrockit/net/SocketNativeIO.readBytesPinned(Ljava/io/FileDescriptor;[BIII)I(Native Method)
at jrockit/net/SocketNativeIO.socketRead(SocketNativeIO.java:32)
at java/net/SocketInputStream.socketRead0(Ljava/io/FileDescriptor;[BIII)I(SocketInputStream.java)
at java/net/SocketInputStream.read(SocketInputStream.java:129)
at oracle/net/ns/Packet.receive(Packet.java:308)
at oracle/net/ns/DataPacket.receive(DataPacket.java:106)
at oracle/net/ns/NetInputStream.getNextPacket(NetInputStream.java:324)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:268)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:190)
at oracle/net/ns/NetInputStream.read(NetInputStream.java:107)
at oracle/jdbc/driver/T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:124)
at oracle/jdbc/driver/T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:80)
at oracle/jdbc/driver/T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1137)[inlined]
at oracle/jdbc/driver/T4CTTIfun.receive(T4CTTIfun.java:350)[optimized]
at oracle/jdbc/driver/T4CTTIfun.doRPC(T4CTTIfun.java:227)
at oracle/jdbc/driver/T4C8Oall.doOALL(T4C8Oall.java:531)[inlined]
at oracle/jdbc/driver/T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)[optimized]
at oracle/jdbc/driver/T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:886)
at oracle/jdbc/driver/OracleStatement.executeMaybeDescribe(OracleStatement.java:1175)
at oracle/jdbc/driver/OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
at oracle/jdbc/driver/OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613)
at oracle/jdbc/driver/OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657)
^-- Holding lock: oracle/jdbc/driver/T4CConnection@0x1809d4df8[thin lock]
at oracle/jdbc/driver/OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495)
at weblogic/jdbc/wrapper/PreparedStatement.executeQuery(PreparedStatement.java:135)
at org/quartz/impl/jdbcjobstore/StdRowLockSemaphore.obtainLock(StdRowLockSemaphore.java:137)
at org/quartz/impl/jdbcjobstore/JobStoreCMT.doRecoverMisfires(JobStoreCMT.java:1337)
at org/quartz/impl/jdbcjobstore/JobStoreSupport$MisfireHandler.manage(JobStoreSupport.java:2449)
at org/quartz/impl/jdbcjobstore/JobStoreSupport$MisfireHandler.run(JobStoreSupport.java:2468)
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
-- end of trace