com.liferay.portal.kernel.job.JobExecutionException：org.postgresql.util.PSQLException：這個連接已經關閉

我用的PostgreSQL 9.3和5.2的Liferaycom.liferay.portal.kernel.job.JobExecutionException：org.postgresql.util.PSQLException：這個連接已經關閉

系統工作正常，但一段時間後，我有我在日誌文件中有連接丟失問題。

(org.springframework.scheduling.quartz.SchedulerFactoryBean#6e2243fb_Worker-2) 07:19:09,914 ERROR [JobWrapper:81] com.liferay.portal.kernel.job.JobExecutionException: org.postgresql.util.PSQLException: An I/O error occurred while sending to the backend. 
com.liferay.portal.kernel.job.JobExecutionException: org.postgresql.util.PSQLException: An I/O error occurred while sending to the backend. 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.execute(ConnectionHeartbeatJob.java:55) 
    at com.liferay.portal.job.JobWrapper.execute(JobWrapper.java:69) 
    at org.quartz.core.JobRunShell.run(JobRunShell.java:202) 
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529) 
Caused by: org.postgresql.util.PSQLException: An I/O error occurred while sending to the backend. 
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:226) 
    at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:424) 
    at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:321) 
    at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:313) 
    at com.mchange.v2.c3p0.impl.NewProxyStatement.execute(NewProxyStatement.java:1006) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.sendHeartbeat(ConnectionHeartbeatJob.java:75) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.execute(ConnectionHeartbeatJob.java:52) 
    ... 3 more 
Caused by: java.net.SocketException: Connection reset 
    at java.net.SocketInputStream.read(SocketInputStream.java:168) 
    at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:143) 
    at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:112) 
    at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:70) 
    at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:283) 
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1799) 
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:200) 
    ... 9 more 
2017-08-13 08:19:09,901 INFO [STDOUT] (org.springframework.scheduling.quartz.SchedulerFactoryBean#6e2243fb_Worker-1) 08:19:09,901 WARN [NewPooledConnection:486] [c3p0] A PooledConnection that has already signalled a Connection error is still in use! 
2017-08-13 08:19:09,903 INFO [STDOUT] (org.springframework.scheduling.quartz.SchedulerFactoryBean#6e2243fb_Worker-1) 08:19:09,902 WARN [NewPooledConnection:487] [c3p0] Another error has occurred [ org.postgresql.util.PSQLException: This connection has been closed. ] which will not be reported to listeners! 
org.postgresql.util.PSQLException: This connection has been closed. 
    at org.postgresql.jdbc.PgConnection.checkClosed(PgConnection.java:786) 
    at org.postgresql.jdbc.PgConnection.createStatement(PgConnection.java:1598) 
    at org.postgresql.jdbc.PgConnection.createStatement(PgConnection.java:405) 
    at com.mchange.v2.c3p0.impl.NewProxyConnection.createStatement(NewProxyConnection.java:96) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy$LazyConnectionInvocationHandler.invoke(LazyConnectionDataSourceProxy.java:364) 
    at com.sun.proxy.$Proxy261.createStatement(Unknown Source) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.sendHeartbeat(ConnectionHeartbeatJob.java:73) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.execute(ConnectionHeartbeatJob.java:52) 
    at com.liferay.portal.job.JobWrapper.execute(JobWrapper.java:69) 
    at org.quartz.core.JobRunShell.run(JobRunShell.java:202) 
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529) 
2017-08-13 08:19:09,905 INFO [STDOUT] (org.springframework.scheduling.quartz.SchedulerFactoryBean#6e2243fb_Worker-1) 08:19:09,903 ERROR [JobWrapper:81] com.liferay.portal.kernel.job.JobExecutionException: org.postgresql.util.PSQLException: This connection has been closed. 
com.liferay.portal.kernel.job.JobExecutionException: org.postgresql.util.PSQLException: This connection has been closed. 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.execute(ConnectionHeartbeatJob.java:55) 
    at com.liferay.portal.job.JobWrapper.execute(JobWrapper.java:69) 
    at org.quartz.core.JobRunShell.run(JobRunShell.java:202) 
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529) 
Caused by: org.postgresql.util.PSQLException: This connection has been closed. 
    at org.postgresql.jdbc.PgConnection.checkClosed(PgConnection.java:786) 
    at org.postgresql.jdbc.PgConnection.createStatement(PgConnection.java:1598) 
    at org.postgresql.jdbc.PgConnection.createStatement(PgConnection.java:405) 
    at com.mchange.v2.c3p0.impl.NewProxyConnection.createStatement(NewProxyConnection.java:96) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy$LazyConnectionInvocationHandler.invoke(LazyConnectionDataSourceProxy.java:364) 
    at com.sun.proxy.$Proxy261.createStatement(Unknown Source) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.sendHeartbeat(ConnectionHeartbeatJob.java:73) 
    at com.liferay.counter.service.persistence.ConnectionHeartbeatJob.execute(ConnectionHeartbeatJob.java:52) 
    ... 3 more

這是我在配置portal-ext.properties：

# 
# PostgreSQL 
# 
jdbc.default.driverClassName=org.postgresql.Driver 
jdbc.default.url=jdbc:postgresql://192.168.2.3:5432/portal 
jdbc.default.username=postgres 
jdbc.default.password=postgres

，我嘗試添加這些行，但錯誤依然出現：

jdbc.default.testConnectionOnCheckout=true 
jdbc.default.preferredTestQuery=SELECT 1 
jdbc.default.acquireIncrement=1 
jdbc.default.maxIdleTime=10800 
jdbc.default.maxConnectionAge=14400 
jdbc.default.numHelperThreads=20

我無法理解錯誤，可能是postgresql設置或liferay連接池設置中的問題

我此行postgresql.conf中可以改變來解決這個問題：

#synchronous_standby_names = '' # standby servers that provide sync rep 
       # comma-separated list of application_name 
       # from standby(s); '*' = all

更新時間：

顯示此錯誤日誌文件中幾次，但第一次出現是在一分鐘後可能需要1小時。

我在Docker容器中運行Postgresql。

liferay和數據庫容器在同一臺物理服務器上。

我不知道爲什麼數據庫連接在某些時候無法訪問。

這是泊塢窗版本：

docker version 
Client: 
Version:  17.06.0-ce 
API version: 1.30 
Go version: go1.8.3 
Git commit: 02c1d87 
Built:  Fri Jun 10 21:20:36 2017 
OS/Arch:  linux/amd64 

Server: 
Version:  17.06.0-ce 
API version: 1.30 (minimum version 1.12) 
Go version: go1.8.3 
Git commit: 02c1d87 
Built:  Fri Jun 10 21:21:56 2017 
OS/Arch:  linux/amd64 
Experimental: false

來源

2017-08-13 franco

哇，Liferay的5.2？這是一段時間...

第一個問題是：這是否經常/每次都會出現？你能重現它還是隻是一次？發生這種情況的一個常見原因是，Postgresql更新並重新啓動時。如果在事務中發生這種情況，我希望Postgresql可以優雅地關閉，例如在關閉之前完成交易。

另一方面，在它再次啓動之前，它將在一段時間內無法訪問。即使Liferay（或連接池）確定當前連接無效（請參閱testQuery），它在服務器關閉期間將無法重新連接。如果Postgresql在不同於運行Liferay的服務器上運行的服務器上運行，它不僅可以重新啓動數據庫本身，還可以完全重啓操作系統。自然，Liferay將在此期間失去聯繫。

由於您沒有提供任何其他重現步驟的指示，我會說這是一個很好的開始猜測。否則需要更多信息。

來源

2017-08-13 13:21:03

感謝您的回覆，我已經更新了我的問題，我使用了數據庫容器，我認爲postgreSQL沒有與Docker一起使用的問題，這個錯誤在日誌文件中多次顯示，但是第一次出現是在一些分鐘可能需要1個小時。 – franco

com.liferay.portal.kernel.job.JobExecutionException：org.postgresql.util.PSQLException：這個連接已經關閉

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