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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-18188) [C++] Fix Handling do not retry exceptions
Date Fri, 16 Jun 2017 18:45:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Enis Soztutar resolved HBASE-18188.
       Resolution: Fixed
    Fix Version/s: HBASE-14850

I've pushed v2 patch. 

> [C++] Fix Handling do not retry exceptions
> ------------------------------------------
>                 Key: HBASE-18188
>                 URL: https://issues.apache.org/jira/browse/HBASE-18188
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: HBASE-14850
>         Attachments: hbase-18188_v1.patch, hbase-18188_v2.patch
> Needed for HBASE-18061 and others. 
> Java client relies on the exception hierarchy for DoNotRetryExceptions, which there is
40+ subtypes. The exceptions from the server side are rethrown in the client side (ConnectionUtils.translateException,
etc) and the rest of the code deals with do-not-retry information by catching DoNotRetryIOException's
(thus relying on exception hierarchy). 
> This of course does not work on the C++ side, since we lack the info for the java class
types. In case the exception happens in the RPC response, the server puts the do_not_retry
information as a field in PB (see ExceptionResponse::do_not_retry PB message). However, in
other settings, we just serialize the exception without do_not_retry information (see ResultOrException
PB message). In some other settings, we can raise exceptions from the client-side (for example
when table cannot be found in meta). 
> We need a strategy to handle do-not-retry information uniformly, no matter they are coming
from client side or server side. 

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