2024-01-06 16:01:23 557 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 11 milliseconds ago.  The last packet sent successfully to the server was 11 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:5405)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2009)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectTriggerToAcquire(StdJDBCDelegate.java:2613)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2844)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2805)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2803)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3864)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2802)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:287)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 15 more
2024-01-06 16:01:23 560 ERROR org.quartz.core.ErrorLogger - An error occurred while scanning for the next triggers to fire.
org.quartz.JobPersistenceException: Couldn't acquire next trigger: Communications link failure

The last packet successfully received from the server was 11 milliseconds ago.  The last packet sent successfully to the server was 11 milliseconds ago. [See nested exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 11 milliseconds ago.  The last packet sent successfully to the server was 11 milliseconds ago.]
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2923)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2805)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2803)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3864)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2802)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:287)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 11 milliseconds ago.  The last packet sent successfully to the server was 11 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:5405)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2009)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectTriggerToAcquire(StdJDBCDelegate.java:2613)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2844)
	... 5 more
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 15 more
2024-01-06 16:01:23 561 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 0 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:5405)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2009)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectTriggerToAcquire(StdJDBCDelegate.java:2613)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2844)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2805)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2803)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3864)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2802)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:287)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 15 more
2024-01-06 16:48:40 049 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 12,433 milliseconds ago.  The last packet sent successfully to the server was 5 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4807)
	at com.alibaba.druid.pool.DruidPooledConnection.setAutoCommit(DruidPooledConnection.java:713)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.setAutoCommit(AttributeRestoringConnectionInvocationHandler.java:98)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:66)
	at com.sun.proxy.$Proxy135.setAutoCommit(Unknown Source)
	at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:191)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.doCheckin(JobStoreSupport.java:3322)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:3935)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:3972)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 14 more
2024-01-06 16:48:40 053 ERROR org.springframework.scheduling.quartz.LocalDataSourceJobStore - ClusterManager: Error managing cluster: Failure identifying failed instances when checking-in: connection holder is null
org.quartz.JobPersistenceException: Failure identifying failed instances when checking-in: connection holder is null [See nested exception: java.sql.SQLException: connection holder is null]
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.findFailedInstances(JobStoreSupport.java:3420)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.clusterCheckIn(JobStoreSupport.java:3470)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.doCheckin(JobStoreSupport.java:3330)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:3935)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:3972)
Caused by: java.sql.SQLException: connection holder is null
	at com.alibaba.druid.pool.DruidPooledConnection.checkStateInternal(DruidPooledConnection.java:1156)
	at com.alibaba.druid.pool.DruidPooledConnection.checkState(DruidPooledConnection.java:1149)
	at com.alibaba.druid.pool.DruidPooledConnection.prepareStatement(DruidPooledConnection.java:337)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:73)
	at com.sun.proxy.$Proxy135.prepareStatement(Unknown Source)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectSchedulerStateRecords(StdJDBCDelegate.java:2992)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.findFailedInstances(JobStoreSupport.java:3384)
	... 4 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 12,433 milliseconds ago.  The last packet sent successfully to the server was 5 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4807)
	at com.alibaba.druid.pool.DruidPooledConnection.setAutoCommit(DruidPooledConnection.java:713)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.setAutoCommit(AttributeRestoringConnectionInvocationHandler.java:98)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:66)
	at com.sun.proxy.$Proxy135.setAutoCommit(Unknown Source)
	at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:191)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.doCheckin(JobStoreSupport.java:3322)
	... 2 more
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 14 more
2024-01-06 16:48:55 725 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 15,669 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4807)
	at com.alibaba.druid.pool.DruidPooledConnection.setAutoCommit(DruidPooledConnection.java:713)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.setAutoCommit(AttributeRestoringConnectionInvocationHandler.java:98)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:66)
	at com.sun.proxy.$Proxy136.setAutoCommit(Unknown Source)
	at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:191)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3861)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2802)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:287)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 14 more
2024-01-06 16:48:55 731 ERROR org.quartz.core.ErrorLogger - An error occurred while scanning for the next triggers to fire.
org.quartz.JobPersistenceException: Couldn't acquire next trigger: connection holder is null [See nested exception: java.sql.SQLException: connection holder is null]
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2923)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2805)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport$41.execute(JobStoreSupport.java:2803)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3864)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2802)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:287)
Caused by: java.sql.SQLException: connection holder is null
	at com.alibaba.druid.pool.DruidPooledConnection.checkStateInternal(DruidPooledConnection.java:1156)
	at com.alibaba.druid.pool.DruidPooledConnection.checkState(DruidPooledConnection.java:1149)
	at com.alibaba.druid.pool.DruidPooledConnection.prepareStatement(DruidPooledConnection.java:337)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:73)
	at com.sun.proxy.$Proxy136.prepareStatement(Unknown Source)
	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectTriggerToAcquire(StdJDBCDelegate.java:2599)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTrigger(JobStoreSupport.java:2844)
	... 5 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 15,669 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4807)
	at com.alibaba.druid.pool.DruidPooledConnection.setAutoCommit(DruidPooledConnection.java:713)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.setAutoCommit(AttributeRestoringConnectionInvocationHandler.java:98)
	at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:66)
	at com.sun.proxy.$Proxy136.setAutoCommit(Unknown Source)
	at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:191)
	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3861)
	... 2 more
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 14 more
2024-01-06 16:49:00 006 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 59,953 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2011)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:434)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:186)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:121)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
	at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:167)
	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3967)
	at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:508)
	at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:478)
	at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:219)
	at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:278)
	at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)
	at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)
	at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1129)
	at org.hibernate.internal.SessionImpl.access$2600(SessionImpl.java:164)
	at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2696)
	at org.hibernate.internal.SessionImpl.get(SessionImpl.java:975)
	at org.springframework.orm.hibernate5.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:450)
	at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:359)
	at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:326)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:443)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:436)
	at com.seniortech.amlu.dao.AbstractDAO.findById(AbstractDAO.java:36)
	at com.seniortech.amlu.dao.AbstractDAO$$FastClassBySpringCGLIB$$7ab28a16.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.dao.FrameSolidDAO$$EnhancerBySpringCGLIB$$b72f1c0c.findById(<generated>)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl.querySolidByKey(FrameSolidBOImpl.java:32)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$FastClassBySpringCGLIB$$a927b5d6.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$EnhancerBySpringCGLIB$$a0347f1a.querySolidByKey(<generated>)
	at com.seniortech.amlu.quartz.job.ScheduleIndexRefreshJOB.execute(ScheduleIndexRefreshJOB.java:38)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 59 more
2024-01-06 16:49:00 007 ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Communications link failure

The last packet successfully received from the server was 59,953 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
2024-01-06 16:49:00 014 ERROR com.seniortech.amlu.dao.FrameSolidDAO - get failed
org.springframework.dao.DataAccessResourceFailureException: could not extract ResultSet; nested exception is org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
	at org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:220)
	at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:362)
	at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:326)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:443)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:436)
	at com.seniortech.amlu.dao.AbstractDAO.findById(AbstractDAO.java:36)
	at com.seniortech.amlu.dao.AbstractDAO$$FastClassBySpringCGLIB$$7ab28a16.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.dao.FrameSolidDAO$$EnhancerBySpringCGLIB$$b72f1c0c.findById(<generated>)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl.querySolidByKey(FrameSolidBOImpl.java:32)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$FastClassBySpringCGLIB$$a927b5d6.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$EnhancerBySpringCGLIB$$a0347f1a.querySolidByKey(<generated>)
	at com.seniortech.amlu.quartz.job.ScheduleIndexRefreshJOB.execute(ScheduleIndexRefreshJOB.java:38)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
	at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:115)
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
	at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:434)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:186)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:121)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
	at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:167)
	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3967)
	at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:508)
	at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:478)
	at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:219)
	at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:278)
	at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)
	at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)
	at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1129)
	at org.hibernate.internal.SessionImpl.access$2600(SessionImpl.java:164)
	at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2696)
	at org.hibernate.internal.SessionImpl.get(SessionImpl.java:975)
	at org.springframework.orm.hibernate5.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:450)
	at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:359)
	... 32 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 59,953 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3562)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3462)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3905)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2011)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)
	... 50 more
Caused by: java.net.SocketException: Software caused connection abort: recv failed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:101)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:144)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:174)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3472)
	... 59 more
2024-01-06 16:52:00 026 ERROR com.alibaba.druid.pool.DruidDataSource - discard connection
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet successfully received from the server was 31,277 milliseconds ago. The last packet sent successfully to the server was 31,277 milliseconds ago.
	at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:175)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
	at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:916)
	at com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:972)
	at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeQuery(DruidPooledPreparedStatement.java:228)
	at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:434)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:186)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:121)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
	at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:167)
	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3967)
	at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:508)
	at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:478)
	at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:219)
	at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:278)
	at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)
	at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)
	at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1129)
	at org.hibernate.internal.SessionImpl.access$2600(SessionImpl.java:164)
	at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2696)
	at org.hibernate.internal.SessionImpl.get(SessionImpl.java:975)
	at org.springframework.orm.hibernate5.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:450)
	at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:359)
	at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:326)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:443)
	at org.springframework.orm.hibernate5.HibernateTemplate.get(HibernateTemplate.java:436)
	at com.seniortech.amlu.dao.AbstractDAO.findById(AbstractDAO.java:36)
	at com.seniortech.amlu.dao.AbstractDAO$$FastClassBySpringCGLIB$$7ab28a16.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.dao.FrameSolidDAO$$EnhancerBySpringCGLIB$$6b3a6ff5.findById(<generated>)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl.querySolidByKey(FrameSolidBOImpl.java:32)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$FastClassBySpringCGLIB$$a927b5d6.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
	at com.seniortech.amlu.bo.impl.FrameSolidBOImpl$$EnhancerBySpringCGLIB$$aafdc599.querySolidByKey(<generated>)
	at com.seniortech.amlu.quartz.job.ScheduleIndexRefreshJOB.execute(ScheduleIndexRefreshJOB.java:38)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)