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From "Oded (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ZOOKEEPER-3036) Unexpected exception in zookeeper
Date Wed, 09 May 2018 10:49:00 GMT
Oded created ZOOKEEPER-3036:

             Summary: Unexpected exception in zookeeper
                 Key: ZOOKEEPER-3036
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3036
             Project: ZooKeeper
          Issue Type: Bug
          Components: jmx
    Affects Versions: 3.4.10
         Environment: 3 Zookeepers, 5 kafka servers
            Reporter: Oded

We got an issue with one of the zookeeprs (Leader), causing the entire kafka cluster to fail:

2018-05-09 02:29:01,730 [myid:3] - ERROR [LearnerHandler-/]
- Unexpected exception causing shutdown while sock still open
java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
        at java.io.DataInputStream.readInt(DataInputStream.java:387)
        at org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:63)
        at org.apache.zookeeper.server.quorum.QuorumPacket.deserialize(QuorumPacket.java:83)
        at org.apache.jute.BinaryInputArchive.readRecord(BinaryInputArchive.java:99)
        at org.apache.zookeeper.server.quorum.LearnerHandler.run(LearnerHandler.java:559)
2018-05-09 02:29:01,730 [myid:3] - WARN  [LearnerHandler-/]
- ******* GOODBYE / ********


We would expect that zookeeper will choose another Leader and the Kafka cluster will continue
to work as expected, but that was not the case.


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