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From Debraj Manna <subharaj.ma...@gmail.com>
Subject Re: The current epoch, 7, is older than the last zxid, 8589935882
Date Tue, 20 Aug 2019 18:29:26 GMT
The same has been asked in stackoverflow
<https://stackoverflow.com/questions/57574298/zookeeper-error-the-current-epoch-is-older-than-the-last-zxid>
also. But no response there also.

Anyone any thoughts on this one?

On Tue, Aug 20, 2019 at 4:43 PM Debraj Manna <subharaj.manna@gmail.com>
wrote:

> Posted wrong Jira link. I meant
> https://issues.apache.org/jira/browse/ZOOKEEPER-2354.  Can someone let me
> know what is the recommended way to recover the node?
>
> support@platform2:/var/lib/zookeeper/version-2$ sudo cat acceptedEpoch
> 8support@platform2:/var/lib/zookeeper/version-2$ sudo cat currentEpoch
> 7support@platform2:/var/lib/zookeeper/version-2$ sudo cat currentEpoch.tmp
> 8support@platform2
>
> On Tue, Aug 20, 2019 at 3:14 PM Debraj Manna <subharaj.manna@gmail.com>
> wrote:
>
>> Hi
>>
>> I am using a zookeeper ensemble of 3 nodes running 3.4.13. Sometimes
>> after reboot of machine zookeeper is not starting and I am seeing the below
>> errors in logs.
>>
>> I have seen https://issues.apache.org/jira/browse/ZOOKEEPER-1653 . Can
>> someone let me if this is fixed in 3.4.13 or not as I can see the issue
>> still open? Also can somone suggest what is the recommended way to recover
>> the set-up ?
>>
>> 2019-08-19 04:18:36,906 [myid:2] - ERROR [main:QuorumPeer@692] - Unable
>> to load database on disk
>> java.io.IOException: The current epoch, 7, is older than the last zxid,
>> 34359738370
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:674)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:635)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:170)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:114)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:81)
>> 2019-08-19 04:18:36,908 [myid:2] - ERROR [main:QuorumPeerMain@92] -
>> Unexpected exception, exiting abnormally
>> java.lang.RuntimeException: Unable to run quorum server
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:693)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:635)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:170)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:114)
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:81)
>> Caused by: java.io.IOException: The current epoch, 7, is older than the
>> last zxid, 34359738370
>> at
>> org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:674)
>> ... 4 more----
>>
>>
>>

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