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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-3976) Lift "HBASE-11240 Print hdfs pipeline when hlog's sync is slow"
Date Sat, 29 Aug 2015 20:13:45 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-3976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14721245#comment-14721245
] 

Josh Elser commented on ACCUMULO-3976:
--------------------------------------

For historical purposes -- I did some cleanup on Eric's original commit because I noticed
the reflection in the original HBase patch was only needed for super-old versions of Hadoop.
Since we're going against 2.2.0 at a minimum, there's not need for the extra back-and-forth.

> Lift "HBASE-11240 Print hdfs pipeline when hlog's sync is slow"
> ---------------------------------------------------------------
>
>                 Key: ACCUMULO-3976
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3976
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: tserver
>            Reporter: Josh Elser
>            Assignee: Eric Newton
>             Fix For: 1.8.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> HBASE-11240 is a really nice little change that has been extremely helpful in my debugging
sessions of HBase in the past. It provides a very clear message that can point at HDFS as
the reason for "slow ingest".
> I would suspect that we could easily lift this same concept into our code (around the
sync thread). I think this would be a very nice improvement to make.



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