Re: Broken pipe error

Hi Maciek,

Thanks for your quick reply.

Here is log messages from one application:

2010-09-17 12:31:32,202 ERROR JDBCTransaction:67: - JDBC begin failed
org.postgresql.util.PSQLException: An I/O error has occured while flushing
the output - Exception: java.net.SocketException: Broken pipe
Stack Trace:

java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at org.postgresql.core.PGStream.flush(PGStream.java:411)
at org.postgresql.core.QueryExecutor.sendQueryV3(QueryExecutor.java:337)
at org.postgresql.core.QueryExecutor.executeV3(QueryExecutor.java:121)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:100)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:43)
at
org.postgresql.jdbc1.AbstractJdbc1Connection.execSQL(AbstractJdbc1Connection.java:875)
at
org.postgresql.jdbc1.AbstractJdbc1Connection.setAutoCommit(AbstractJdbc1Connection.java:1266)
at
org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:268)
at
org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:293)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:63)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:494)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:315)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:257)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:102)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:209)
...

End of Stack Trace

at org.postgresql.core.PGStream.flush(PGStream.java:415)
at org.postgresql.core.QueryExecutor.sendQueryV3(QueryExecutor.java:337)
at org.postgresql.core.QueryExecutor.executeV3(QueryExecutor.java:121)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:100)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:43)
at
org.postgresql.jdbc1.AbstractJdbc1Connection.execSQL(AbstractJdbc1Connection.java:875)
at
org.postgresql.jdbc1.AbstractJdbc1Connection.setAutoCommit(AbstractJdbc1Connection.java:1266)
at
org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:268)
at
org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:293)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:63)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:494)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:315)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:257)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:102)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:209)
...

The driver version is pg74.213.jdbc3.jar. The PostgreSQL is 8.x.x.

Thanks a lot.

> On Fri, Sep 17, 2010 at 1:41 PM, admin
> <admin0423(at)homepage(dot)kgbinternet(dot)com> wrote:
>> With the PostgresSQL 8.0, I have experienced a broken pipe error for
>> some
>> times. One new Java web application experiences this problem in every
>> ten
>> day or so. This problem becomes a big problem right now for the
>> enterprise
>> application. Is the jdbc driver problem or something else?
>
> I think the only possible answer to a question this vague is "maybe".
>
> Less flippantly, we can probably help you better if you provide more
> information on the types of errors you're seeing (e.g., a full stack
> trace), whether your application was doing anything unusual at the
> time of the error (e.g., in terms of query workload, PostgreSQL notify
> messages, etc.), and anything else that might be relevant. From
> watching the list, I'm not aware of any open issues leading the driver
> to break a connection.
>
> ---
> Maciek Sakrejda | System Architect | Truviso
>
> 1065 E. Hillsdale Blvd., Suite 215
> Foster City, CA 94404
> (650) 242-3500 Main
> www.truviso.com
>
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