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Improvement
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Resolution: Duplicate
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Minor
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None
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Lustre 2.7.0
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None
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9223372036854775807
when we mount 2 or more lustre fs on a client, the obd_timeout is the max of the all server obd_timeout. in some cases, it could be have some server evict due to that one of server does not wait obd_ping request enough time
in my case, I have 2 lustre fs, Servers 2.5.X and some Clients 2.7, the first server have obd_timeout=100 and the second server have obd_timeout=300 so the obd_timeout inherited on the client is obd_timeout=300. the client send one obd-ping request each 75 seconds if just one obd_ping request is lost, the client could be evict, so it could be better to have a obd_timeout by filesystems or the min of the each servers filesystems