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  1. IMPALA
  2. IMPALA-8495

Impala Doc: Document Data Read Cache

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 3.3.0
    • Fix Version/s: Impala 3.3.0
    • Component/s: Docs
    • Labels:

      Description

      IMPALA-8341 introduces a data cache for remote reads. In particular, it caches data for non-local reads (e.g. S3, ABFS, ADLS). The data cache can be enabled setting the startup flag --data_cache=<dir1>,<dir2>,...,<dirN>:<quota> in which <dir1>,...,<dirN> are directories on local filesystem and quota is the storage consumption quota for each directory. Note that multiple Impala daemons running on the same host must not share cache directories.

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            • Assignee:
              arodoni Alexandra Rodoni
              Reporter:
              kwho Michael Ho

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                Updated:
                Resolved:

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