An I O Error Occurred While Sending To The Backend
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An Io Error Occurred While Sending To The Backend
PostgreSQL Exception : org.postgresql.util.PSQLException: An I/O error occured while sending to the backend up vote 3 down vote favorite 2 I know it is a duplicate question . But I couldn't find solution for the same. I have hosted my application in the Amazon EC2 cloud. And I am using postgresql . I am getting an exception org.postgresql.util.PSQLException: An I/O error occured while sending to the backend. while running my application in Amazon cloud. The detailed stack-trace is : org.postgresql.util.PSQLException: An I/O error occured while sending to the backend. at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:281) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:403) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:331) at com.spy2k3.core.business.processor.ProcessorImpl.executeUpdate(ProcessorImpl.java:237) at com.spy2k3.core.business.object.BusinessObject.executeUpdate(BusinessObject.java:54) at com.spy2k3.core.business.object.LoginObject.deleteSession(LoginObject.java:127) at com.spy2k3.core.business.processor.LoginProcessor.userValidation(LoginProcessor.java:79) at com.spy2k3.core.business.processor.LoginProcessor.execute(LoginProcessor.java:30) at com.spy2k3.core.business.processor.ProcessorImpl.process(ProcessorImpl.java:73) at com.spy2k3.core.handler.request.RequestHandler.doService(RequestHandler.java:90) at com.spy2k3.core.handler.AbstractHandler.doPost(AbstractHandler.java:25) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardValveContext.invok
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more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags http://stackoverflow.com/questions/20878854/postgresql-exception-org-postgresql-util-psqlexception-an-i-o-error-occured-w Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Connection has been abandoned -> An I/O error occurred while http://stackoverflow.com/questions/32507392/connection-has-been-abandoned-an-i-o-error-occurred-while-sending-to-the-back sending to the backend up vote 7 down vote favorite I know that there are a lot of topics about abandoned connections , however I can't figure out what is the problem in my case, so I really hope for some help. I have a Java application with Spring, which fetches some data from external services, and tries to save it in database. I have the following configuration for JDBC pool
to the following exceptions in confluence: https://community.dev.hpe.com/t5/Vertica-Forum/I-O-error-occured-while-sending-to-the-backend-on-JDBC/td-p/206265 org.postgresql.util.PSQLException: An I/O error occured while sending to the backend. at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:216) at org.postgresql.jdbc2.AbstractJdbc2Connection.executeTransactionCommand(AbstractJdbc2Connection.java:619) at org.postgresql.jdbc2.AbstractJdbc2Connection.commit(AbstractJdbc2Connection.java:639) at org.postgresql.jdbc2.AbstractJdbc2Connection.setAutoCommit(AbstractJdbc2Connection.java:602) at org.apache.tomcat.dbcp.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:268) at org.apache.tomcat.dbcp.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:293) at net.sf.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:104) at net.sf.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:95) at o error org.springframework.orm.hibernate.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:526) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:753) at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:730) ... Caused by: java.io.IOException: Stream closed at sun.nio.cs.StreamEncoder.ensureOpen(StreamEncoder.java:38) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:151) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:213) at org.postgresql.core.PGStream.flush(PGStream.java:531) at org.postgresql.core.v3.QueryExecutorImpl.sendSync(QueryExecutorImpl.java:674) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:189) ... 89 more Diagnosis Obtain the Postgres logs. They contain: 2008-06-22 12:40:45 o error occurred CEST LOG: transaction ID wrap limit is 2147484146, limited by database "postgres" 2008-06-22 12:42:46 CEST LOG: autovacuum: processing database "confluencedb" 2008-06-22 12:43:09 CEST LOG: server process (PID 12352) was terminated by signal 11 2008-06-22 12:43:09 CEST LOG: terminating any other active server processes 2008-06-22 12:43:09 CEST WARNING: terminating connection because of crash of another server process Cause Signal 11 indicates that the postgres database server is crashing due to bad hardware. Resolution Move your Postgres database to another server or identify the faulty hardware. Refer to this third party forum for more information: http://www.nabble.com/terminating-connection-because-of-crash-of-another-server-process-td15468324.html Was this helpful? Yes No Thanks fo
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