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  1. Lustre
  2. LU-6390

lru_size on the OSC is not honored

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • Lustre 2.8.0
    • Lustre 2.8.0
    • 2
    • 9223372036854775807

    Description

      Here is all resutls results with 200K files.

      # lctl set_param ldlm.namespaces.*.lru_size=1000
ldlm.namespaces.MGC10.0.10.153@o2ib.lru_size=1000
ldlm.namespaces.lustre-MDT0000-mdc-ffff881fccd75800.lru_size=1000
ldlm.namespaces.lustre-OST0000-osc-ffff881fccd75800.lru_size=1000
ldlm.namespaces.lustre-OST0001-osc-ffff881fccd75800.lru_size=1000
ldlm.namespaces.lustre-OST0002-osc-ffff881fccd75800.lru_size=1000
ldlm.namespaces.lustre-OST0003-osc-ffff881fccd75800.lru_size=1000

# ls -lR /lustre
# lctl get_param ldlm.namespaces.*.lock_count
ldlm.namespaces.MGC10.0.10.153@o2ib.lock_count=4
ldlm.namespaces.lustre-MDT0000-mdc-ffff881fccd75800.lock_count=1002
ldlm.namespaces.lustre-OST0000-osc-ffff881fccd75800.lock_count=50003
ldlm.namespaces.lustre-OST0001-osc-ffff881fccd75800.lock_count=50002
ldlm.namespaces.lustre-OST0002-osc-ffff881fccd75800.lock_count=50003
ldlm.namespaces.lustre-OST0003-osc-ffff881fccd75800.lock_count=50004

      Attachments

        1. dmesg
          483 kB
        2. bt.uniq
          10 kB
        3. bt.all
          316 kB

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-11518 lock_count is exceeding lru_size

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-6529 Server side lock limits to avoid unnecessary memory exhaustion

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              jay Jinshan Xiong (Inactive)
              jay Jinshan Xiong (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: