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From Brian Tarbox <briantar...@gmail.com>
Subject Re: ZK fsync warning
Date Tue, 27 Nov 2012 12:40:19 GMT
Does this warning mean a: the log is too big, b: zk is competing with another process for disk
access, c: other?

How should one respond to the warning?

Sent from my iPhone

On Nov 27, 2012, at 2:47 AM, Patrick Hunt <phunt@apache.org> wrote:

> On Mon, Nov 26, 2012 at 11:43 PM, Narayanan A R
> <narayanan.arunachalam@gmail.com> wrote:
>> Have you seen this before?
>> 
>> 2012-11-25 16:01:08,074 [myid:1] - WARN  [SyncThread:1:FileTxnLog@321] -
>> fsync-ing the write ahead log in SyncThread:1 took 1470ms which will
>> adversely effect operation latency. See the ZooKeeper troubleshooting guide
>> 
>> I am running ZK cluster of size 3 in a VM.
> 
> Yes, I added it recently to highlight situations where environment
> could adversely effect ZK latency.
> 
> Patrick

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