[LU-14467] Allow split metadata across MDTs during file creation Created: 23/Feb/21  Updated: 23/Feb/21  Resolved: 23/Feb/21

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.14.0
Fix Version/s: None

Type: New Feature Priority: Minor
Reporter: Shuichi Ihara Assignee: WC Triage
Resolution: Duplicate Votes: 0
Labels: None

Issue Links:
Duplicate
is duplicated by LU-14459 DNE3: directory auto split during create Open
Rank (Obsolete): 9223372036854775807

 Description   

DNE auto restriping introduced in Lustre-2.14.0 and it can be managed by the following parameters.

e.g.
mdt.*.enable_dir_auto_split=1
mdt.*.dir_split_count=50000
mdt.*.dir_split_delta=4

However, it still needs to issue "stat <dir>" to trigger restriping and doesn't split during file creation today.
It would add a policy to split metadata across MDTs without "stat" call to directory and it triggers metadata splitting automatically even during file creation.

 Comments   
Comment by Lai Siyao [ 23/Feb/21 ]

Andreas has create a ticket LU-14459 for this.

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