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  1. Cassandra
  2. CASSANDRA-3623

use MMapedBuffer in CompressedSegmentedFile.getSegment

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    • Improvement
    • Status: Resolved
    • Normal
    • Resolution: Won't Fix
    • 1.1.0
    • None

    Description

      CompressedSegmentedFile.getSegment seem to open a new file and doesnt seem to use the MMap and hence a higher CPU on the nodes and higher latencies on reads.

      This ticket is to implement the TODO mentioned in CompressedRandomAccessReader

      // TODO refactor this to separate concept of "buffer to avoid lots of read() syscalls" and "compression buffer"
      but i think a separate class for the Buffer will be better.

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            vijay2win@yahoo.com Vijay
            vijay2win@yahoo.com Vijay
            Vijay
            Yuki Morishita
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              Created:
              Updated:
              Resolved: