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Posted to issues@impala.apache.org by "Tianyi Wang (JIRA)" <ji...@apache.org> on 2018/05/12 00:18:00 UTC

[jira] [Created] (IMPALA-7019) Discard block locations and schedule as remote read with erasure coding

Tianyi Wang created IMPALA-7019:
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             Summary: Discard block locations and schedule as remote read with erasure coding
                 Key: IMPALA-7019
                 URL: https://issues.apache.org/jira/browse/IMPALA-7019
             Project: IMPALA
          Issue Type: Sub-task
          Components: Frontend
    Affects Versions: Impala 3.1.0
            Reporter: Tianyi Wang
            Assignee: Tianyi Wang


Currently Impala schedules erasure coded scan in the same way as scheduling regular HDFS scan: it tries to schedule the scan on a datanode processing the block. This makes little sense with erasure coding so we should schedule it as if the block is remote.



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