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  1. HBase
  2. HBASE-15240 Go Big BucketCache Fixes
  3. HBASE-18002

Investigate why bucket cache filling up in file mode in an exisiting file is slower

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.0
    • 2.0.0-alpha-2, 2.0.0
    • BucketCache
    • None
    • Reviewed

    Description

      This issue was observed when we recently did some tests with SSD based bucket cache. Similar thing was also reported by @stack and danielpol while doing some of these bucket cache related testing.
      When we try to preload a bucket cache (in file mode) with a new file the bucket cache fills up quite faster and there not much 'failedBlockAdditions'. But when the same bucket cache is filled up with a preexisitng file ( that had already some entries filled up) this time it has more 'failedBlockAdditions' and the cache does not fill up faster. Investigate why this happens.

      Attachments

        1. HBASE-18002.patch
          1 kB
          ramkrishna.s.vasudevan
        2. HBASE-18002_1.patch
          4 kB
          ramkrishna.s.vasudevan
        3. HBASE-18002_1.patch
          5 kB
          ramkrishna.s.vasudevan

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            ram_krish ramkrishna.s.vasudevan
            ram_krish ramkrishna.s.vasudevan
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            Dates

              Created:
              Updated:
              Resolved: