螃蟹九条腿 2020-03-17 09:58 采纳率: 0%
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内存溢出问题，不知道是哪里出现的问题，怀疑是druid连接池使用不当，求大佬帮忙。

昨晚上出现了两次内存溢出，找不到复现的方法，每次出现内存溢出都不一样，两次都是先出现"Disk Write of"写入磁盘失败错误，然后就是druid获取连接失败，然后报OOM异常，接着linux服务器cpu使用率上涨，一直涨到百分之600满(服务器是6核CPU)，第二次的日志看跟第一次出现类似；下面是第一次 日志

2020-03-16 17:39:47 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_ca92_processor failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:39:47 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_ca92_processor failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351636324","msgId":"598577930","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:40:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351636324","msgId":"598577930","msg":"成功"}
2020-03-16 17:41:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351696340","msgId":"480724569","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:41:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:41:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:41:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351696340","msgId":"480724569","msg":"成功"}
2020-03-16 17:42:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351756356","msgId":"2008015594","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:42:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:42:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:42:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351756356","msgId":"2008015594","msg":"成功"}
2020-03-16 17:43:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351816372","msgId":"1754653907","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:43:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:43:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:43:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351816372","msgId":"1754653907","msg":"成功"}
2020-03-16 17:44:37 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:38 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:38 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:41 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351881843","msgId":"327484943","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:44:41 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:44:43 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:44:48 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:48 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:49 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351881843","msgId":"327484943","msg":"成功"}
2020-03-16 17:45:02 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:45:55 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:45:55 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351955374","msgId":"690664616","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:45:55 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:46:00 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351955374","msgId":"690664616","msg":"成功"}
2020-03-16 17:47:13 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352033984","msgId":"1701533843","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:47:13 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:47:14 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:47:19 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352033984","msgId":"1701533843","msg":"成功"}
2020-03-16 17:48:48 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352128999","msgId":"1984150795","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:48:50 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:48:50 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352128999","msgId":"1984150795","msg":"成功"}
2020-03-16 17:48:51 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:50:00 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352200578","msgId":"1977525065","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:50:01 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:50:03 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:50:04 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352200578","msgId":"1977525065","msg":"成功"}
2020-03-16 17:51:20 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352280657","msgId":"1863876211","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:51:21 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:51:22 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:51:28 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352280657","msgId":"1863876211","msg":"成功"}
2020-03-16 17:52:47 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:52:50 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:52:55 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352373108","msgId":"628094041","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:53:03 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352373108","msgId":"628094041","msg":"成功"}
2020-03-16 17:54:00 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352439640","msgId":"72219615","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:54:00 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:54:03 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:54:09 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352439640","msgId":"72219615","msg":"成功"}
2020-03-16 17:55:23 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:55:23 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:55:25 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:55:26 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:55:26 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352526466","msgId":"1473614692","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:55:36 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:55:41 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:55:42 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352526466","msgId":"1473614692","msg":"成功"}
2020-03-16 17:55:48 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:00 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:00 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:02 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:56:05 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:06 WARN [SqlExceptionHelper.java:143] - SQL Error: 0, SQLState: null
2020-03-16 17:56:06 ERROR [SqlExceptionHelper.java:144] - wait millis 5488, active 8, maxActive 40, creating 0
2020-03-16 17:56:14 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:27 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:56:29 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:56:37 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:56:37 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352597266","msgId":"617319811","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:56:37 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:56:49 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352597266","msgId":"617319811","msg":"成功"}
2020-03-16 17:56:58 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:58:04 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352684961","msgId":"1580436857","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:58:04 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:58:07 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:58:12 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584352684961","msgId":"1580436857","msg":"成功"}
2020-03-16 17:58:17 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:58:38 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:59:06 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space

然后这是第二次OOM异常的日志

2020-03-16 17:36:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351396265","msgId":"2054492855","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:36:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351396265","msgId":"2054492855","msg":"成功"}
2020-03-16 17:37:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351456281","msgId":"1912161758","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:37:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351456281","msgId":"1912161758","msg":"成功"}
2020-03-16 17:38:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351516297","msgId":"476243815","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:38:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351516297","msgId":"476243815","msg":"成功"}
2020-03-16 17:39:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351576307","msgId":"2004523303","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:39:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351576307","msgId":"2004523303","msg":"成功"}
2020-03-16 17:39:47 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_ca92_processor failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:39:47 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_ca92_processor failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351636324","msgId":"598577930","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:40:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:40:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351636324","msgId":"598577930","msg":"成功"}
2020-03-16 17:41:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351696340","msgId":"480724569","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:41:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:41:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:41:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351696340","msgId":"480724569","msg":"成功"}
2020-03-16 17:42:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351756356","msgId":"2008015594","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:42:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:42:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:42:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351756356","msgId":"2008015594","msg":"成功"}
2020-03-16 17:43:36 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351816372","msgId":"1754653907","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:43:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:43:36 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:43:36 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351816372","msgId":"1754653907","msg":"成功"}
2020-03-16 17:44:37 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:38 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:38 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:41 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351881843","msgId":"327484943","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":16777400,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:44:41 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:44:43 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:44:48 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:48 WARN [DruidDataSource.java:1258] - get connection timeout retry : 1
2020-03-16 17:44:49 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351881843","msgId":"327484943","msg":"成功"}
2020-03-16 17:45:02 ERROR [DruidDataSource.java:2469] - create connection SQLException, url: jdbc:mysql://localhost:55060/mcs?useUnicode=true&characterEncoding=utf-8, errorCode 0, state S1000
java.sql.SQLException: java.lang.OutOfMemoryError: PermGen space
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:878)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:874)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:443)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:45:55 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:45:55 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584351955374","msgId":"690664616","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":33554616,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:45:55 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:46:00 INFO [MQTTProtocolHandler.java:89] - 接收到返回协议：{"topic":"reControlProtocol/reApplyBackPicCtrl/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07/00:00:01:A0:43:74","result":"success","timeStamp":"1584351955374","msgId":"690664616","msg":"成功"}
2020-03-16 17:47:13 INFO [BaseHandler.java:42] - 向解码器推送协议{"topic":"controlProtocol/applyBackPicCtrl/00:00:01:A0:43:74/1c79b3b3-6020-4af7-97ec-a1abd5f0cc07","timeStamp":"1584352033984","msgId":"1701533843","videoEnable":0,"picList":[{"level":0,"imageEndY":900,"imageEndX":1600,"blockEndY":900,"blockEndX":1600,"blockStartY":180,"imageStartX":320,"picId":184,"imageStartY":180,"blockStartX":320}]}
2020-03-16 17:47:13 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space
2020-03-16 17:47:14 ERROR [DiskStorageFactory.java:495] - Disk Write of mcs_pic_layer failed:
java.lang.OutOfMemoryError: PermGen space

这是我项目的druid配置

<beans profile="production">
    <context:property-placeholder ignore-unresolvable="true" location="classpath:/jdbc.properties" />   
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> 
        <property name="driverClassName" value="${jdbc.driver}" /> 
        <property name="url" value="${jdbc.url}" /> 
        <property name="username" value="${jdbc.username}" /> 
        <property name="password" value="${jdbc.password}" /> 
        <!-- 配置初始化大小、最小、最大 --> 
        <property name="initialSize" value="1" /> 
        <property name="minIdle" value="1" /> 
        <property name="maxActive" value="40" />

        <!-- 配置获取连接等待超时的时间 --> 
        <property name="maxWait" value="5000" />

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --> 
        <property name="timeBetweenEvictionRunsMillis" value="60000" />

        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --> 
        <property name="minEvictableIdleTimeMillis" value="300000" />

        <property name="testWhileIdle" value="true" />

        <!-- 这里建议配置为TRUE，防止取到的连接不可用 --> 
        <property name="testOnBorrow" value="true" /> 
        <property name="testOnReturn" value="false" />

        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 --> 
        <property name="poolPreparedStatements" value="true" /> 
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />

        <!-- 这里配置提交方式，默认就是TRUE，可以不用配置 -->

        <property name="defaultAutoCommit" value="true" />
    </bean>
 </beans>

 求大佬们帮解答。。。
  • 写回答

1条回答 默认 最新

  • 成都渔民 2023-03-30 19:53
    关注

    内存溢出的问题，光看你贴出来的内容，是无法帮你解决的。
    解决这类问题，我的经验是：加大代码的执行频率，让内存溢出的问题能够很快的，必然的出现，然后再来分析问题。如果是随机出现，而且出现时间比较长，你就不好判断是哪里的问题，而且，即使修改了部分代码，也不好验证。所以，解决此类问题的关键，是找到必现的方法。
    另外，你可以加大java运行的内存， java -xmx xx ，有时候可能是你的项目在没有问题的情况下，也需要更大的内存，这时就需要加大项目的内存。

    评论

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