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  1. Lustre
  2. LU-10938 Metadata writeback cache support
  3. LU-15621

WBC: Recovery mechanism for batched RPC

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    • Technical task
    • Resolution: Unresolved
    • Minor
    • None
    • None
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    • 9223372036854775807

    Description

      Batch processing framework is able to pack many individual requests into one large RPC. This batch RPC is then transferred to the server via bulk I/O and executed using a single server round-trip. Batch processing therefore reduces the number of simultaneous requests processed by the server.

      After batched RPC framework introduced, it can boost the metadata performance dramatically. However, it also increases the complexity of the recovery, such as how to reconstruct the reply in case of the RPC resend if the reply was lost.

      The goal of this project is to adopt the existed recovery mechanism with batched RPC framework which will be used by Writeback Caching (WBC) and batched stat ahead.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-19903 Batch up non-modifying RPCs waiting for an RPC slot

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          • Open

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              wc-triage WC Triage
              qian_wc Qian Yingjin
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                Created:
                Updated: