HBase
  1. HBase
  2. HBASE-7408

Make compaction to use pread instead of sequential read

    Details

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

      Description

      As we discovered lately, HFile compactions use sequential reads to fetch blocks. It cause unwanted streaming of data from HDFS to region servers when there is a cache hit. Lets change to use preads to reduce iops on disks.

        Activity

        Rishit Shroff created issue -
        Rishit Shroff made changes -
        Field Original Value New Value
        Assignee Rishit Shroff [ rshroff ]

          People

          • Assignee:
            Rishit Shroff
            Reporter:
            Rishit Shroff
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            Dates

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              Updated:

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