[jira] [Created] (ZOOKEEPER-2332) Zookeeper failed to start for empty txn log

["Liu Shaohui (JIRA)" <ji...@apache.org>]

Liu Shaohui created ZOOKEEPER-2332:
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             Summary: Zookeeper failed to start for empty txn log
                 Key: ZOOKEEPER-2332
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2332
             Project: ZooKeeper
          Issue Type: Bug
    Affects Versions: 3.4.6
            Reporter: Liu Shaohui
            Priority: Critical


We found that the zookeeper server with version 3.4.6 failed to start for there is a empty txn log in log dir.  
I think we should skip the empty log file during restoring the datatree. 
Any suggestion?

{code}
2015-11-27 19:16:16,887 [myid:] - ERROR [main:ZooKeeperServerMain@63] - Unexpected exception, exiting abnormally
java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:392)
at org.apache.jute.BinaryInputArchive.readInt(BinaryInputArchive.java:63)
at org.apache.zookeeper.server.persistence.FileHeader.deserialize(FileHeader.java:64)
at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.inStreamCreated(FileTxnLog.java:576)
at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.createInputArchive(FileTxnLog.java:595)
at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.goToNextLog(FileTxnLog.java:561)
at org.apache.zookeeper.server.persistence.FileTxnLog$FileTxnIterator.next(FileTxnLog.java:643)
at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:158)
at org.apache.zookeeper.server.ZKDatabase.loadDataBase(ZKDatabase.java:223)
at org.apache.zookeeper.server.ZooKeeperServer.loadData(ZooKeeperServer.java:272)
at org.apache.zookeeper.server.ZooKeeperServer.startdata(ZooKeeperServer.java:399)
at org.apache.zookeeper.server.NIOServerCnxnFactory.startup(NIOServerCnxnFactory.java:122)
at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:113)
at org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeperServerMain.java:86)
at org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.java:52)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:116)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
{code}



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