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 buffers:
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 reqpath:n/a
java.io.EOFException
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?
Thanks,
Camille
