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  1. Lustre
  2. LU-3859

grant shrinker floods OST and produce a large load

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: Critical Critical
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    • xyratex lustre (mostly 2.1 based)
    • 3
    • 10011

      While invested a sort of LNet bugs i tried to dump a rpc cache on OST after fail and find most of rpc in cache is grant shrink requests - it's produce a large load to the routers and OST's.

      ffff8807b9cc3440 rpc_cache               1024        313       896    224     4k
# grep -c RQF_OST_SET_GRANT_INFO \&\ log 
304

      so 304 from 313 RPC's is flood from grant shrinker.

            wc-triage WC Triage
            shadow Alexey Lyashkov
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              Created:
              Updated:
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