How to fix java.net.SocketException: Broken pipe?

java exception post sockets
Mani picture Mani · Feb 22, 2010 · Viewed 491.1k times · Source

I am using apache commons http client to call url using post method to post the parameters and it is throwing the below error rarely. 

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.write(BufferedOutputStream.java:105)
        at java.io.FilterOutputStream.write(FilterOutputStream.java:80)
        at org.apache.commons.httpclient.methods.ByteArrayRequestEntity.writeRequest(ByteArrayRequestEntity.java:90)
        at org.apache.commons.httpclient.methods.EntityEnclosingMethod.writeRequestBody(EntityEnclosingMethod.java:499)
        at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2114)
        at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
        at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)

Can someone suggest what is causing this Exception and how to debug it?

Answer

Marquis of Lorne picture Marquis of Lorne · Feb 22, 2010

This is caused by:

  • most usually, writing to a connection when the other end has already closed it;
  • less usually, the peer closing the connection without reading all the data that is already pending at his end.

So in both cases you have a poorly defined or implemented application protocol.

There is a third reason which I will not document here but which involves the peer taking deliberate action to reset rather than properly close the connection.

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