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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-9310) SQL: throw exception when missing cache is attempted to be created inside a transaction
Date Fri, 17 Aug 2018 10:59:00 GMT
Vladimir Ozerov created IGNITE-9310:
---------------------------------------

             Summary: SQL: throw exception when missing cache is attempted to be created inside
a transaction
                 Key: IGNITE-9310
                 URL: https://issues.apache.org/jira/browse/IGNITE-9310
             Project: Ignite
          Issue Type: Task
          Components: mvcc, sql
    Affects Versions: 2.6
            Reporter: Vladimir Ozerov
             Fix For: 2.7


See \{{org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing#prepareStatementAndCaches}}.
This method might be called inside a transaction (both MVCC and non-MVCC modes). If we do
not have any protective mechanics (need to check), then this call may lead to cache creation
on a client, which in turn will wait for all TXes to finish, including current one, leading
to a deadlock.
 # Create tests confirming the problem
 # If hang is reproduced - add a check for ongoing transaction and throw an exception



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