[jira] [Commented] (IGNITE-10991) JDBC thin: STREAMING mode fails on streamer reopen on not ordered mode

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-10991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16783140#comment-16783140 ] 

Vladimir Ozerov commented on IGNITE-10991:
------------------------------------------

[~tledkov-gridgain], looks good to me in general, but I am not quite understand {{JdbcRequestHandler.OrderedBatchWorker#body}} method: why do we do {{peek}} and then make {{poll}}? Can we just make one {{poll}} instead?

> JDBC thin: STREAMING mode fails on streamer reopen on not ordered mode
> ----------------------------------------------------------------------
>
>                 Key: IGNITE-10991
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10991
>             Project: Ignite
>          Issue Type: Bug
>          Components: jdbc, sql
>    Affects Versions: 2.6
>            Reporter: Ilya Kasnacheev
>            Assignee: Taras Ledkov
>            Priority: Major
>             Fix For: 2.8
>
>         Attachments: CacheSqlStreamingAllowOverwriteTest.java
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Please see attached test. Repeatedly overwriting same cache entries over and over in streaming mode with ALLOW_OVERWRITE ON will cause either:
> {code}
> java.sql.BatchUpdateException: Failed to INSERT some keys because they are already in cache [keys=[2054...]
> 	at org.apache.ignite.internal.jdbc.thin.JdbcThinConnection$StreamState.readResponses(JdbcThinConnection.java:1052)
> 	... 1 more
> {code}
> or
> {code}
> WARNING: Exception during batch send on streamed connection close
> java.sql.BatchUpdateException: class org.apache.ignite.IgniteCheckedException: Data streamer has been closed.
> 	at org.apache.ignite.internal.jdbc.thin.JdbcThinConnection$StreamState.readResponses(JdbcThinConnection.java:1016)
> 	at java.lang.Thread.run(Thread.java:748)
> {code}
> Expecter behavior - no failures, all records overwritten.



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