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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2017/11/14 13:58:00 UTC
[jira] [Updated] (IGNITE-6904) SQL: partition reservations are
released too early in lazy mode
[ https://issues.apache.org/jira/browse/IGNITE-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Ozerov updated IGNITE-6904:
------------------------------------
Summary: SQL: partition reservations are released too early in lazy mode (was: SQL: Partition reservations are released too early in lazy mode)
> SQL: partition reservations are released too early in lazy mode
> ---------------------------------------------------------------
>
> Key: IGNITE-6904
> URL: https://issues.apache.org/jira/browse/IGNITE-6904
> Project: Ignite
> Issue Type: Bug
> Security Level: Public(Viewable by anyone)
> Components: sql
> Affects Versions: 2.3
> Reporter: Vladimir Ozerov
> Fix For: 2.4
>
>
> In lazy mode we advance query execution as new page requests arrive. However, method {{GridMapQueryExecutor#onQueryRequest0}} releases partition reservations when only the very first page is processed:
> {code}
> finally {
> GridH2QueryContext.clearThreadLocal();
> if (distributedJoinMode == OFF)
> qctx.clearContext(false);
> }
> {code}
> It means that incorrect results may be returned on unstable topology. We need to release partitions only after the whole query is executed.
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