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  1. Apache Ozone
  2. HDDS-9380

Reduce the number of system calls when DN writes a key

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Implemented
    • None
    • 1.4.0
    • None

    Description

      To execute `HddsDispatcher.sendCloseContainerActionIfNeeded` once, need to call `getCapacity()` 3 times and `getAvailable()` 2 times.

      The `getCapacity()` and `getAvailable()` are System call, we need reduce the System calls.

       Here reduces the number of `getCapacity()` and `getAvailable()` calls to one each.

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        1. cpu_dn_create_key_afer_hdds_9380.html
          747 kB
          ChenXi
        2. cpu_dn_create_key2_long.html
          416 kB
          ChenXi
        3. image-2023-10-03-21-54-25-419.png
          202 kB
          ChenXi

        Issue Links

          is related to

          Sub-task - The sub-task of the issue HDDS-9842 [hsync] Checking disk capacity at every write request is expensive for HBase

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #5388

          Activity

            People

              XiChen ChenXi
              XiChen ChenXi
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              Dates

                Created:
                Updated:
                Resolved: