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https://issues.apache.org/jira/browse/HIVE-12634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243859#comment-15243859
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Eugene Koifman commented on HIVE-12634:
---------------------------------------

1. did you figure out why there are so many changes in generated code and if 
it's a reason for concern?
2. I think that the new _TxnHandler.abortTxns(AbortTxnsRequest rqst)_ should 
best effort, i.e. if the parameter list is 10 txn ids but for some reason it 
only aborted 7 that should be ok.  _abortTxns(Connection dbConn, List<Long> 
txnids, long max_heartbeat)_ is too restrictive as currently implemented.  It 
should only bail when it didn't find all requested txn ids in some case.
3. HIVE-12439 introduced a bad bug in _abortTxns(Connection dbConn, List<Long> 
txnids, long max_heartbeat)_.  It changed how
{noformat}
updateCnt = stmt.executeUpdate(query);
        if (updateCnt < txnids.size()) {
}
{noformat}
works.  Now the 'if' statement will be true every time 
_buildQueryWithINClause()_ produces > 1 query.

> Add command to kill an ACID transacton
> --------------------------------------
>
>                 Key: HIVE-12634
>                 URL: https://issues.apache.org/jira/browse/HIVE-12634
>             Project: Hive
>          Issue Type: New Feature
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>         Attachments: HIVE-12634.1.patch, HIVE-12634.2.patch
>
>
> Should add a CLI command to abort a (runaway) transaction.
> This should clean up all state related to this txn.
> The initiator of this (if still alive) will get an error trying to 
> heartbeat/commit, i.e. will become aware that the txn is dead.



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