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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8036) ProtobufUtil.multi behavior is inconsistent in case of errors
Date Wed, 13 Mar 2013 02:42:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Enis Soztutar updated HBASE-8036:

    Attachment: hbase-8036_v4.patch

v4. I added clearRegionCache() in TestMultiParallel#before() and ensured that we wait until
the RS is aborted properly. 
> ProtobufUtil.multi behavior is inconsistent in case of errors
> -------------------------------------------------------------
>                 Key: HBASE-8036
>                 URL: https://issues.apache.org/jira/browse/HBASE-8036
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.0
>            Reporter: Sergey Shelukhin
>            Assignee: Enis Soztutar
>            Priority: Blocker
>             Fix For: 0.95.0
>         Attachments: hbase-8036_v1.patch, hbase-8036_v2.patch, hbase-8036_v3.patch, hbase-8036_v4.patch
> ProtobufUtil splits operations by regions and performs multiple client.multi calls. In
case if there are certain errors inside RS, HRegionServer adds the corresponding exceptions
to MultiResponse, PU continues the multi request for other regions, and returns partial failure.

> In case of other errors (for example, region not served exception), the entire multi
operation stops executing, and previous successes and partial results are disregarded.
> ProtobufUtil should probably catch ServiceException separately for each client.multi
call, make it a partial-failure exception for all actions for this region, and also continue
the batch, to make the behavior consistent.
> Alternatively, if we want to avoid continuing the batch in case of some server-wide errors/connection
problems/etc., server should do that for region-specific errors (add exception to results
for each action).

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