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Posted to issues-all@impala.apache.org by "Csaba Ringhofer (Jira)" <ji...@apache.org> on 2023/08/28 16:59:00 UTC

[jira] [Created] (IMPALA-12408) Planner spends lot of time in HdfsPartition.getLocation()

Csaba Ringhofer created IMPALA-12408:
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             Summary: Planner spends lot of time in HdfsPartition.getLocation()
                 Key: IMPALA-12408
                 URL: https://issues.apache.org/jira/browse/IMPALA-12408
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
            Reporter: Csaba Ringhofer


For queries with lot of partitions the majority of planning time can be spent decoding compressed partition locations. This can be often avoid, e.g. by caching FsType instead of always decompressing the path to get its prefix: https://github.com/apache/impala/blob/218c4c447eadb14fadb8310db4b46ab8c04cb1ba/fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java#L914



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