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From Ted Yu <yuzhih...@gmail.com>
Subject Re: need help understand log output
Date Sun, 07 Sep 2014 16:07:18 GMT
When number of attempts is greater than the value of
hbase.client.start.log.errors.counter (default 9), AsyncProcess would
produce logs cited below.
The interval following 'retrying after ' is the backoff time.

Which release of HBase are you using ?

Cheers


On Sun, Sep 7, 2014 at 8:50 AM, Brian Jeltema <
brian.jeltema@digitalenvoy.net> wrote:

> I have a map/reduce job that is consistently failing with timeouts. The
> failing mapper log files contain a series
> of records similar to those below. When I look at the hbase and hdfs logs
> (on foo.net in this case) I don’t see
> anything obvious at these timestamps. The mapper task times out at/near
> attempt=25/35. Can anyone shed light
> on what these log entries mean?
>
> Thanks - Brian
>
>
> 2014-09-07 09:36:51,421 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=10/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 10029 ms, replay 1062 ops
> 2014-09-07 09:37:01,642 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=11/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 10023 ms, replay 1062 ops
> 2014-09-07 09:37:12,064 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=12/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 20182 ms, replay 1062 ops
> 2014-09-07 09:37:32,708 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=13/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 20140 ms, replay 1062 ops
> 2014-09-07 09:37:52,940 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=14/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 20041 ms, replay 1062 ops
> 2014-09-07 09:38:13,324 INFO [htable-pool1-t1]
> org.apache.hadoop.hbase.client.AsyncProcess: #3, table=Host, primary,
> attempt=15/35 failed 1062 ops, last exception: null on foo.net,60020,1406043467187,
> tracking started null, retrying after 20041 ms, replay 1062 ops
>
>

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