Vladimir Ozerov created IGNITE-9310:
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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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