Vladimir Sitnikov created CALCITE-2853:
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Summary: avatica.MetaImpl and calcite.jdbc.CalciteMetaImpl are not
thread-safe
Key: CALCITE-2853
URL: https://issues.apache.org/jira/browse/CALCITE-2853
Project: Calcite
Issue Type: Bug
Components: avatica, core
Affects Versions: 1.18.0, avatica-1.13.0
Reporter: Vladimir Sitnikov
MetaImpl is a server-side singletone, and CalciteMetaImpl never creates
connections.
This causes all the incoming requests to be served by a single connection only,
and it produces in wrong results when accessed from concurrent threads (e.g.
CalciteRemoteDriverTest in builds.apache.org).
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