[Lustre-discuss] [wc-discuss] The ost_connect operation failed with -16

Adrian Ulrich adrian at blinkenlights.ch
Tue May 29 22:51:10 PDT 2012


> May 30 09:58:36 ccopt kernel: LustreError: 11-0: an error occurred while communicating with at tcp. The ost_connect operation failed with -16

Error -16 stands for -EBUSY

> When you got this error message, you failed to run "ls", "df" ,"vi", "touch" and so on, which affect us to do anything in the file system.

That's to be expected in such a situation. I suppose that 'lfs check servers' returned 'temporarily unavailable' for some OSTs ?

> I think the ost_connect failure could report some error messages to users instead of  causing any interactive actions stuck.

No: Users shouldn't get an error in such a situation: The filesystem will just hang until the situation recovered (= the client was able to re-connect to the OST).


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