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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2015/11/18 03:09:11 UTC
[jira] [Updated] (HIVE-12421) Streaming API
TransactionBatch.beginNextTransaction() does not wait for locks
[ https://issues.apache.org/jira/browse/HIVE-12421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eugene Koifman updated HIVE-12421:
----------------------------------
Issue Type: Improvement (was: Bug)
> Streaming API TransactionBatch.beginNextTransaction() does not wait for locks
> -----------------------------------------------------------------------------
>
> Key: HIVE-12421
> URL: https://issues.apache.org/jira/browse/HIVE-12421
> Project: Hive
> Issue Type: Improvement
> Components: HCatalog, Transactions
> Affects Versions: 0.14.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> TransactionBatchImpl.beginNextTransactionImpl() has
> {noformat}
> LockResponse res = msClient.lock(lockRequest);
> if (res.getState() != LockState.ACQUIRED) {
> throw new TransactionError("Unable to acquire lock on " + endPt);
> }
> {noformat}
> This means that if there are any competing locks already take, this will throw an Exception to client. This doesn't seem like the right behavior. It should block.
> We could also add TransactionBatch.beginNextTransaction(long timeoutMs) to give the client more control.
> cc [~alangates] [~sriharsha]
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