我们有一个集群石英配置,有8个地理分布的节点,所有节点都由MariaDB的单个实例支持.我们反复观察到以下错误:
2018-04-26 00:14:01,186 [censored_QuartzSchedulerThread] ERROR org.quartz.core.ErrorLogger - An error occurred while firing triggers '[Trigger 'DEFAULT.a563a68e-b30d-4dab-b24f-540c5fa0cef8': triggerClass: 'org.quartz.impl.triggers.CronTriggerImpl calendar: 'null' misfireInstruction: 0 nextFireTime: Thu Apr 26 00:11:00 EDT 2018]'
org.quartz.impl.jdbcjobstore.LockException: Failure obtaining db row lock: (conn:83) Lock wait timeout exceeded; try restarting transaction
Query is: SELECT * FROM QRTZ_LOCKS WHERE SCHED_NAME = 'censored' AND LOCK_NAME = ? FOR UPDATE, parameters ['TRIGGER_ACCESS']
at org.quartz.impl.jdbcjobstore.StdRowLockSemaphore.executeSQL(StdRowLockSemaphore.java:157)
at org.quartz.impl.jdbcjobstore.DBSemaphore.obtainLock(DBSemaphore.java:113)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3792)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.triggersFired(JobStoreSupport.java:2912)
at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:336)
Caused by: java.sql.SQLException: (conn:83) Lock wait timeout exceeded; try restarting …