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From "Fournier, Camille F." <Camille.Fourn...@gs.com>
Subject anyone familiar with the zookeeper perl client?
Date Fri, 12 Aug 2011 14:10:57 GMT
Hi all,

We keep seeing issues that we believe are related to the ZK Perl client. Occasionally, our
users of this client will have strange errors that show up on the server as corrupted request

2011-08-12 08:01:16,602 - ERROR [CommitProcessor:4:FinalRequestProcessor@347] - Failed to
process sessionid:0x5319dd2bf3403f4 type:exists cxid:0x0 zxid:0xfffffffffffffffe txntype:unknown
        at java.io.DataInputStream.readFully(DataInputStream.java:180)
        at java.io.DataInputStream.readFully(DataInputStream.java:152)
        at org.apache.jute.BinaryInputArchive.readString(BinaryInputArchive.java:82)
        at org.apache.zookeeper.proto.ExistsRequest.deserialize(ExistsRequest.java:55)
        at org.apache.zookeeper.server.ZooKeeperServer.byteBuffer2Record(ZooKeeperServer.java:599)
        at org.apache.zookeeper.server.FinalRequestProcessor.processRequest(FinalRequestProcessor.java:227)
        at org.apache.zookeeper.server.quorum.Leader$ToBeAppliedRequestProcessor.processRequest(Leader.java:540)
        at org.apache.zookeeper.server.quorum.CommitProcessor.run(CommitProcessor.java:73)
2011-08-12 08:01:16,602 - ERROR [CommitProcessor:4:FinalRequestProcessor@354] - Dumping request
buffer: 0x504150ffffffff

This caused a DOSing of one of our clusters the other week. The client fixed their retry logic,
but we still see the underlying error. Has anyone else run into this?


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