[jira] [Created] (IMPALA-6020) REFRESH statement cannot detect HDFS block movement

["Jim Apple (JIRA)" <ji...@apache.org>]

Jim Apple created IMPALA-6020:
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             Summary: REFRESH statement cannot detect HDFS block movement
                 Key: IMPALA-6020
                 URL: https://issues.apache.org/jira/browse/IMPALA-6020
             Project: IMPALA
          Issue Type: Bug
          Components: Docs
    Affects Versions: Impala 2.9.0, Impala 2.8.0, Impala 2.10.0
            Reporter: Jim Apple
            Assignee: John Russell


In the release notes, it says
http://impala.apache.org/docs/build/html/topics/impala_new_features.html

{quote}The REFRESH statement now updates information about HDFS block locations. Therefore, you can perform a fast and efficient REFRESH after doing an HDFS rebalancing operation instead of the more expensive INVALIDATE METADATA statement.
{quote}

However there is no change in HDFS or Impala side to support this. There may be some misunderstanding. After hdfs load balancing, user still needs to run INVALIDATE METADATA <table> to get latest block metadata.



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