Couldn't store trigger 'com.liferay.portlet.blogs.messaging.LinkbackMessage

[Michele Giacobazzi, módosítva 11 év-val korábban]

I get this exception on liferay 6.0.6

20:14:44,853 ERROR [ErrorLogger:2166] An error occured while firing trigger 'com.liferay.portlet.blogs.messaging.LinkbackMessageListener.com.liferay.portlet.blogs.messaging.LinkbackMessageListener'
org.quartz.JobPersistenceException: Couldn't store trigger 'com.liferay.portlet.blogs.messaging.LinkbackMessageListener' for 'com.liferay.portlet.blogs.messaging.LinkbackMessageListener' job:Lock wait timeout exceeded; try restarting transaction [See nested exception: java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction]
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.storeTrigger(JobStoreSupport.java:1241)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.triggerFired(JobStoreSupport.java:2932)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$38.execute(JobStoreSupport.java:2842)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3742)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.triggerFired(JobStoreSupport.java:2836)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:339)
Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
	at com.mysql.jdbc.Connection.execSQL(Connection.java:3256)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1313)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1585)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1500)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1485)
	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:105)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.updateTrigger(StdJDBCDelegate.java:1295)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.storeTrigger(JobStoreSupport.java:1227)
	... 5 more

what does this mean?

[Hitoshi Ozawa, módosítva 11 év-val korábban]

Are you try to find the meaning of the cause of the error message below?

Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction

Seems your MySQL connection is timing out.