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Posted to issues@impala.apache.org by "Joe McDonnell (JIRA)" <ji...@apache.org> on 2018/10/26 17:15:00 UTC

[jira] [Created] (IMPALA-7772) Print message when open file limit restricts size of file handle cache

Joe McDonnell created IMPALA-7772:
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             Summary: Print message when open file limit restricts size of file handle cache
                 Key: IMPALA-7772
                 URL: https://issues.apache.org/jira/browse/IMPALA-7772
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 3.1.0
            Reporter: Joe McDonnell


The size of the file handle cache is determined by the min(max_cached_file_handles, OS limit on number of open files). Right now, there is no message printed if the OS limit on the number of open files is less than max_cached_file_handles. This is confusing, because the file handle cache will be smaller than expected. We should print a message on startup in this case.



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