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Date: Tue, 7 Oct 2008 07:53:44 -0700 (PDT)
From: "Asankha C. Perera (JIRA)" <jira@apache.org>
To: dev@synapse.apache.org
Subject: [jira] Created: (SYNAPSE-464) HTTP 1.0 Connection: close headers
 could cause a close event to be triggered before processing of the message
 finishes
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HTTP 1.0 Connection: close headers could cause a close event to be triggered before processing of the message finishes
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                 Key: SYNAPSE-464
                 URL: https://issues.apache.org/jira/browse/SYNAPSE-464
             Project: Synapse
          Issue Type: Bug
          Components: Transports
    Affects Versions: 1.2
         Environment: Common when connecting to BEA WebLogic 8.1.4
            Reporter: Eric Hubert
            Assignee: Asankha C. Perera
             Fix For: 1.3


We had already running services on Bea Weblogic. The server hosting the endpoint closes the connection before submitting any reply back to the ESB. Then the endpoint is suspended as because it fails temporary, and a fault is returned to the client.
The same thing occurs in production with a service deployed on Bea, but the failure is happening very seldom and even this is an issue, we didn't have any blocking side effect.
A fix for this was provided setting the property

<syn:property name="FORCE_HTTP_1.0" value="true" scope="axis2" />

in the proxies configuration. While the HTTP protocol version was set to 1.0, we could not set the connection to anything else than 'Keep-Alive':

ERROR ServerHandler IO error submiting response : Connection is closed
org.apache.http.ConnectionClosedException: Connection is closed
        at org.apache.http.impl.nio.NHttpConnectionBase.assertNotClosed(NHttpConnectionBase.java:238)
        at org.apache.http.impl.nio.DefaultNHttpServerConnection.submitResponse(DefaultNHttpServerConnection.java:200)

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