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  1. HBase
  2. HBASE-10052

use HDFS advisory caching to avoid caching HFiles that are not going to be read again (because they are being compacted)

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      HBase can benefit from doing dropbehind during compaction since compacted files are not read again. HDFS advisory caching, introduced in HDFS-4817, can help here. The right API here is DataInputStream#setDropBehind.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4817 make HDFS advisory caching configurable on a per-file basis

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HBASE-14098 Allow dropping caches behind compactions

          • Major - Major loss of function.
          • Resolved

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              • Assignee:
                Unassigned
                Reporter:
                cmccabe Colin McCabe
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                Dates

                • Created:
                  Updated: