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From "Taras Ledkov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-10991) JDBC thin: STREAMING mode fails on streamer reopen on not ordered mode
Date Mon, 04 Mar 2019 09:42:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-10991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16783167#comment-16783167
] 

Taras Ledkov commented on IGNITE-10991:
---------------------------------------

[~vozerov], because It is possible that the queue dosn't contain the request with expected
order.
In this case we can do {{poll / add}} to return the request to queue or do {{peek / poll}}
and poll only expected message.

> 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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