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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

    • Improvement
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • None
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    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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            Unassigned Unassigned
            cmccabe Colin McCabe
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              Updated:

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