[DIRAPI-83] Debug logging causes never ending loop whn decoding messages

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0.0-M11
• Fix Version/s: 1.0.0-M12
• Environment: Fedora 16 x64, Java 7, OpenLDAP 2.4.26
• Assignee: Emmanuel Lécharny
• Reporter: Sumit Raja
• Created: 20/Apr/12 15:11
• Updated: 08/Jan/15 17:17
• Resolved: 30/Apr/12 23:44

Description

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