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https://issues.apache.org/jira/browse/ZOOKEEPER-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
May updated ZOOKEEPER-4416:
---------------------------
Description:
There is a ZooKeeper cluster with three nodes: zk1, zk2 and zk3.
1. zk1 was stopped for a while;
2. restart zk1, and it starts to follow the current leader;
3. zk1 creates the {{currentEpoch.tmp}} file;
4. zk1 crashes before writing current epoch to {{currentEpoch.tmp}} file;
5. restart zk1, and it fails due to "Unable to load database on disk" error:
{code:java}
java.io.IOException: Found null in
/home/zk-3.6.3/zkData/version-2/currentEpoch.tmp
at java.lang.Throwable.fillInStackTrace(Throwable.java)
at java.lang.Throwable.fillInStackTrace(Throwable.java:784)
at java.lang.Throwable.<init>(Throwable.java:266)
at java.lang.Exception.<init>(Exception.java:66)
at java.io.IOException.<init>(IOException.java:58)
at
org.apache.zookeeper.server.quorum.QuorumPeer.readLongFromFile(QuorumPeer.java:2116)
at
org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:1118)
at
org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:1079)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:227)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:136)
at
org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:90)
{code}
was:
There is a ZooKeeper cluster with three nodes: zk1, zk2 and zk3.
1. zk1 was stopped for a while;
2. restart zk1, and it starts to follow the current leader;
3. zk1 creates the
> Null currentEpoch.tmp fails the server
> --------------------------------------
>
> Key: ZOOKEEPER-4416
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4416
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.6.3
> Reporter: May
> Priority: Major
>
> There is a ZooKeeper cluster with three nodes: zk1, zk2 and zk3.
> 1. zk1 was stopped for a while;
> 2. restart zk1, and it starts to follow the current leader;
> 3. zk1 creates the {{currentEpoch.tmp}} file;
> 4. zk1 crashes before writing current epoch to {{currentEpoch.tmp}} file;
> 5. restart zk1, and it fails due to "Unable to load database on disk" error:
> {code:java}
> java.io.IOException: Found null in
> /home/zk-3.6.3/zkData/version-2/currentEpoch.tmp
> at java.lang.Throwable.fillInStackTrace(Throwable.java)
> at java.lang.Throwable.fillInStackTrace(Throwable.java:784)
> at java.lang.Throwable.<init>(Throwable.java:266)
> at java.lang.Exception.<init>(Exception.java:66)
> at java.io.IOException.<init>(IOException.java:58)
> at
> org.apache.zookeeper.server.quorum.QuorumPeer.readLongFromFile(QuorumPeer.java:2116)
> at
> org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:1118)
> at
> org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:1079)
> at
> org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:227)
> at
> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:136)
> at
> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:90)
> {code}
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