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  1. Lustre
  2. LU-11189

OSC flow control

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Details

    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 9223372036854775807

    Description

      We're running into a problem that somehow OST devices are really slow to serve write requests. However, clients don't the situation so they would just keep sending requests, eventually this causes RPC timeout.

      This work is trying to relieve the problem by introducing a flow control on the OSC where it holds sending more requests as soon as it receives early reply.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-12864 sanity-benchmark test_iozone crashes with OOM on clients

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. LU-11092 NMI watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [ptlrpcd_00_18:4222]

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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            People

              bobijam Zhenyu Xu
              Jinshan Jinshan Xiong
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              Dates

                Created:
                Updated: