[LU-2328] Improve "is not available for connect (no target)" message Created: 14/Nov/12  Updated: 07/Jun/16

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.4.0
Fix Version/s: None

Type: Improvement Priority: Minor
Reporter: Prakash Surya (Inactive) Assignee: Alex Zhuravlev
Resolution: Unresolved Votes: 1
Labels: shh

Rank (Obsolete): 5560

 Description   

When a client is misconfigured, it may try to connect to an OST which does not exist. This can cause these messages on the server:

LustreError: 137-5: UUID 'ls1-OST0011_UUID' is not available for connect (no target)
LustreError: 137-5: UUID 'ls1-OST0012_UUID' is not available for connect (no target)
LustreError: 137-5: UUID 'ls1-OST0012_UUID' is not available for connect (no target)
LustreError: 137-5: UUID 'ls1-OST0011_UUID' is not available for connect (no target)

If the client is never cleaned up, this will go on indefinitely. This should really be cleaned up, and a message should only be printed a single time for this type of error (to help spot mis-configured clients).

For example, it would be better if the server kept a list of clients that have tried to connect to this non-existent OST, and only print a message once per client.

We tend to hit this when we re-purpose our development filesystems without rebooting/remounting clients, which then clutters the server log.



 Comments   
Comment by Peter Jones [ 15/Nov/12 ]

Alex will triage this one

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