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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2018/10/10 13:49:00 UTC
[jira] [Commented] (IGNITE-9724) MVCC SQL: Test
CacheMvccSelectForUpdateQueryAbstractTest.testSelectForUpdateDistributed
hangs sporadically.
[ https://issues.apache.org/jira/browse/IGNITE-9724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644977#comment-16644977 ]
Vladimir Ozerov commented on IGNITE-9724:
-----------------------------------------
This appears to be purely test problem - it is organized in way when we open transaction, then start several other transactions in separate threads, and then wait for them synchronously. Is exchange is to happen between current and child transactions, test will hang (TX <- PME <- CHILD TXes <- TX).
> MVCC SQL: Test CacheMvccSelectForUpdateQueryAbstractTest.testSelectForUpdateDistributed hangs sporadically.
> -----------------------------------------------------------------------------------------------------------
>
> Key: IGNITE-9724
> URL: https://issues.apache.org/jira/browse/IGNITE-9724
> Project: Ignite
> Issue Type: Bug
> Components: mvcc, sql
> Reporter: Andrew Mashenkov
> Assignee: Vladimir Ozerov
> Priority: Major
> Fix For: 2.7
>
> Attachments: hanging.txt
>
>
> CacheMvccSelectForUpdateQueryAbstractTest.testSelectForUpdateDistributed() hangs sporadically with PME.
> Exchange thread is waiting for partition released
> Query threads are waiting for TxTopologyVersionFuture.
>
>
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