[LU-17476] lnet: only report mismatched nid in ME if bits match

Related — Thu, 8 Feb 2024 08:53:52 +0000

There are rare cases where a client-to-server AST reply was being dropped by the server:

lnet_parse_put()) Dropping PUT from 12345-10.31.3.108@tcp portal 16 match 1788044801687552 offset 224 length 224: 4
:
request_out_callback()) @@@ type 5, status 0  req@00000000a8fbe768 x1788044801687552/t0(0) o104->lfs02-MDT0001@10.31.3.109@tcp:15/16 lens 328/224 e 0 to 0 dl 1706140946 ref 2 fl Rpc:r/2/ffffffff rc 0/-1 job:''
lnet_parse_put()) Dropping PUT from 12345-10.31.3.108@tcp portal 16 match 1788044801687552 offset 224 length 224: 4
lnet_is_health_check()) Msg 00000000a906b193 is in inconsistent state, don't perform health checking (-2, 0)
lnet_is_health_check()) health check = 0, status = -2, hstatus = 0

As a part of MD matching for incoming GET or PUT from a peer with multiple NIDs, use "matchbits" only if they are available and only report an error on NID/PID mismatch. If can't use "matchbits" for matching, fail on NID/PID mismatch as before.

Whamcloud Community JIRA

[LU-17476] lnet: only report mismatched nid in ME if bits match