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Posted to dev@ignite.apache.org by "Konstantin Orlov (Jira)" <ji...@apache.org> on 2019/11/14 08:28:00 UTC

[jira] [Created] (IGNITE-12369) JdbcThinClient and Server compatibility broken

Konstantin Orlov created IGNITE-12369:
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             Summary: JdbcThinClient and Server compatibility broken
                 Key: IGNITE-12369
                 URL: https://issues.apache.org/jira/browse/IGNITE-12369
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: mas
            Reporter: Konstantin Orlov
             Fix For: mas


Query cancellation support was introduced in IGNITE-5439. From this time server expects that ALL request have id. It breaks compatibility with clients whose version prior to 2.8.0.
Furthermore backport of this feature to 8.7 breaks compatibility newer build of server with older build of client.

See {{ClientListenerProcessor#makeFilters}}. New filter with overrided _onMessageReceived_ is created here. It tries to read request id and if there is not enough data to read long value, it crashes.



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