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From Patrick Hunt <ph...@apache.org>
Subject Re: [jira] Commented: (ZOOKEEPER-335) zookeeper servers should commit the new leader txn to their logs.
Date Mon, 21 Jun 2010 18:04:08 GMT
Please use the JIRA for followups, otw it's hard to track 
progress/status. thanks.

Patrick

On 06/18/2010 04:45 PM, Vishal K wrote:
> Hi Flavio,
>
> I have 3 set of logs and they all seem to indicate two problems on the
> misbehaving follower:
>
> Problem 1: Expected zxid is incorrect
> =0    [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x300000002 expected
> 0x1
> =0    [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x300000002 expected
> 0x1
> =2495 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x400000001 expected
> 0x1
> =2495 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x400000001 expected
> 0x1
> =191617 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x500000001 expected
> 0x1
> =191617 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x500000001 expected
> 0x1
> =0    [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x600000001 expected
> 0x1
> =0    [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x600000001 expected
> 0x1
> =245016 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x700000001 expected
> 0x1
> =245016 [QuorumPeer:/0.0.0.0:2181] WARN
> org.apache.zookeeper.server.quorum.Learner  - Got zxid 0x700000001 expected
> 0x1
>
> Note expected zxid is always 0x1 (lastQueued is always 0?)
>
> Problem 2: While joining the cluster expected epoch is 1 higher than seen
> earlier
> =14991 [QuorumPeer:/0.0.0.0:2181] FATAL
> org.apache.zookeeper.server.quorum.Learner  - Leader epoch 7 is less than
> our epoch 8
>
> -Vishal

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