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Date: Fri, 20 Apr 2012 15:12:40 +0000 (UTC)
From: "Sumit Raja (Created) (JIRA)" <jira@apache.org>
To: dev@directory.apache.org
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Subject: [jira] [Created] (DIRAPI-83) Debug logging causes never ending loop
 whn decoding messages
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Debug logging causes never ending loop whn decoding messages
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                 Key: DIRAPI-83
                 URL: https://issues.apache.org/jira/browse/DIRAPI-83
             Project: Directory Client API
          Issue Type: Bug
    Affects Versions: 1.0.0-M11
         Environment: Fedora 16 x64, Java 7, OpenLDAP 2.4.26
            Reporter: Sumit Raja
            Priority: Minor


When a lookup for an entry is done with debug enabled the message decoding goes into a continuous loop till the search times out. This happens with OpenLDAP when the "ERR_00043_REMAINING_BYTES_FOR_DECODED_PDU The PDU has been fully decoded but there are still bytes in the buffer." error occurs

I don't have a test case but a simple LdapConnection.lookup with debug logging enabled causes this.

The fix looks pretty straightforward - the actual offending code is in org.apache.directory.shared.ldap.codec.protocol.mina.LdapProtocolDecoder.decode(). The buffer.position is set(:134) and reset(:145) without a mark being set.

The workaround is to turn off debug logging for the "org.apache.directory" logger

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