[#LU-4921] DNE clients should fall back to "try all stripes" for lookups in directories with unknown hash functions

[LU-4921] DNE clients should fall back to "try all stripes" for lookups in directories with unknown hash functions Created: 17/Apr/14 Updated: 01/Apr/22 Resolved: 01/Jul/14
Status:	Resolved
Project:	Lustre
Component/s:	None
Affects Version/s:	Lustre 2.6.0
Fix Version/s:	Lustre 2.6.0

Type:

Improvement

Priority:

Critical

Reporter:

Andreas Dilger

Assignee:

Di Wang

Resolution:

Fixed

Votes:

Labels:

dne2

Issue Links:

Related
is related to	~~LU-5371~~	Failure on test suite parallel-scale ...	Resolved
is related to	~~LU-8698~~	DNE3: check unknown hash type properl...	Resolved
is related to	~~LU-3531~~	DNE2: striped directory	Resolved

Rank (Obsolete):

13605

Description

When a client gets an LMV for a striped directory with an unknown hash function, the client can fall back to round-robin lookup in all of the stripes instead of just failing outright. The clients already need to do this in case of LMV_HASH_MIGRATE, so it could also be done for unknown hash functions.

Comments

Comment by John Hammond [ 17/Apr/14 ]

But not for creates.

Comment by Di Wang [ 21/Apr/14 ]

http://review.whamcloud.com/10041

Comment by Peter Jones [ 01/Jul/14 ]

Landed for 2.6

Generated at Sat Feb 10 01:47:00 UTC 2024 using Jira 9.4.14#940014-sha1:734e6822bbf0d45eff9af51f82432957f73aa32c.

[LU-4921] DNE clients should fall back to "try all stripes" for lookups in directories with unknown hash functions Created: 17/Apr/14 Updated: 01/Apr/22 Resolved: 01/Jul/14