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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9843) Various fixes in client code
Date Fri, 25 Oct 2013 19:48:41 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Nicolas Liochon updated HBASE-9843:

    Attachment: 9843-trunk.v2.patch

> Various fixes in client code
> ----------------------------
>                 Key: HBASE-9843
>                 URL: https://issues.apache.org/jira/browse/HBASE-9843
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.96.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.98.0, 0.96.1
>         Attachments: 9843-trunk.v2.patch
> This mainly fixes issues when we had "long" errors, for example a multi blocked when
trying to obtain a lock that was finally failing after 60s. Previously we were trying only
for 5 minutes. We now do all the tries. I've fixed stuff around this area to make it work.
> There is also more logs.
> I've changed the back off array. With the default pause of 100ms, even after 20 tries
we still retry every 10s.
> I've also changed the max per RS to something minimal. If the cluster is not in a very
good state it's less aggressive. It seems to be a better default.
> I've done two tests:
>  - on a small; homogeneous cluster, I had the same performances
>  - on a bigger, but heterogeneous cluster it was twice as fast.

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