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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12637) make retryable SQLExceptions in TxnHandler configurable
Date Sat, 16 Apr 2016 00:25:25 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243890#comment-15243890
] 

Eugene Koifman commented on HIVE-12637:
---------------------------------------

[~wzheng]
1. For the description of HIVE_TXN_RETRYABLE_SQLEX_REGEX I would add that the string that
the regex will check is "ex.getMessage() + "(SQLState=" + ex.getSQLState() + ",ErrorCode="
+ ex.getErrorCode() + ")""  where "ex" is a SQLException.  I think this would make it more
intuitive for end users.
2. testRetryableRegex() could you add a test where the error msg includes a ","?

> make retryable SQLExceptions in TxnHandler configurable
> -------------------------------------------------------
>
>                 Key: HIVE-12637
>                 URL: https://issues.apache.org/jira/browse/HIVE-12637
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>         Attachments: HIVE-12637.1.patch
>
>
> same for CompactionTxnHandler
> would be convenient if the user could specify some RegEx (perhaps by db type) which will
tell TxnHandler.checkRetryable() that this is should be retried.
> The regex should probably apply to String produced by 
> {noformat}
>   private static String getMessage(SQLException ex) {
>     return ex.getMessage() + "(SQLState=" + ex.getSQLState() + ",ErrorCode=" + ex.getErrorCode()
+ ")";
>   }
> {noformat}
> This make it flexible.
> See if we need to add Db type (and possibly version) of the DB being used.
> With 5 different DBs supported this gives control end users.



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