ERROR 16056 --- [ job-event-9] c.d.d.job.event.rdb.JobEventRdbStorage : wait millis 18, active

错误日志：

2019-01-28 09:42:10.623 ERROR 16056 --- [    job-event-9] c.d.d.job.event.rdb.JobEventRdbStorage   : wait millis 18, active 8, maxActive 100, creating 1, runningSqlCount 2 : INSERT INTO `JOB_STATUS_TRACE_LOG` (`id`, `job_name`, `original_task_id`, `task_id`, `slave_id`, `source`, `execution_type`, `sharding_item`,  `state`, `message`, `creation_time`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
runningSqlCount 2 : INSERT INTO `JOB_EXECUTION_LOG` (`id`, `job_name`, `task_id`, `hostname`, `ip`, `sharding_item`, `execution_source`, `is_success`, `start_time`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?);
runningSqlCount 1 : SELECT original_task_id FROM JOB_STATUS_TRACE_LOG WHERE task_id = 'OrderExpireJob-0019@-@0@-@READY@[email protected]@-@16056' and state='TASK_STAGING'
runningSqlCount 1 : SELECT original_task_id FROM JOB_STATUS_TRACE_LOG WHERE task_id = 'OrderExpireJob-0020@-@0@-@READY@[email protected]@-@16056' and state='TASK_STAGING'

解决方法：

将maxWait: 由10改为200

 username: root
      password: root
      driver-class-name: com.mysql.cj.jdbc.Driver
      filters: stat
#      maxActive: 500
      maxActive: 100
      initialSize: 5
      maxWait: 200
      #maxWait: 10
      minIdle: 5
      timeBetweenEvictionRunsMillis: 60000
      minEvictableIdleTimeMillis: 300000
      validationQuery: listByCategoryId 'x'
      testWhileIdle: true
      testOnBorrow: false
      testOnReturn: false
      poolPreparedStatements: true
      maxOpenPreparedStatements: 20