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  1. HBase
  2. HBASE-14496

Compaction improvements: Delayed compaction in RatioBasedCompactionPolicy

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    Details

    • Type: New Feature
    • Status: Patch Available
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      Delayed compaction feature for RatioBasedCompactionPolicy allows to specify maximum compaction delay for newly created store files. Files will be eligible for compaction only if their age exceeds this delay. This will allow to preserve new data in a block cache. For most applications, the newer the data is the more frequently it is accessed. The frequent compactions of a new store files result in high block cache churn rate and affects read performance and read latencies badly.

      The configuration will be global, per table, per column family.

        Attachments

        1. HBASE-14496.v3.patch
          9 kB
          Vladimir Rodionov
        2. HBASE-14496.v2.patch
          9 kB
          Vladimir Rodionov
        3. HBASE-14496.v1.patch
          9 kB
          Vladimir Rodionov

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              • Assignee:
                vrodionov Vladimir Rodionov
                Reporter:
                vrodionov Vladimir Rodionov
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                Dates

                • Created:
                  Updated: