[LU-16232] emergency llog cleanup server scripts

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.7
• Labels: llog recovery
• Assignee: Mikhail Pershin
• Reporter: Mikhail Pershin

Description

There can be situations when update llog or changelog files are corrupted and we are just removing/truncating them. Scripts are needed to remove corrupted llogs properly with all plain llogs, so no orphaned data remains on server

Comments

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/58012/
Subject: LU-16232 script: fix the argument parse
Project: fs/lustre-release
Branch: b2_15
Current Patch Set:
Commit: 48de2407c9f6af2141f64dfa6b440d23c4f69f15

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/58011/
Subject: LU-16232 scripts: changelog/updatelog emergency cleanup
Project: fs/lustre-release
Branch: b2_15
Current Patch Set:
Commit: 470d06cf5ca7a1eceb30e04d30b350465ffd336c

[Gerrit Updater]

"Frederick Dilger <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/58012
Subject: LU-16232 script: fix the argument parse
Project: fs/lustre-release
Branch: b2_15
Current Patch Set: 1
Commit: ff3dcb57b5660385855325e410a24570fd49f713

[Gerrit Updater]

"Frederick Dilger <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/58011
Subject: LU-16232 scripts: changelog/updatelog emergency cleanup
Project: fs/lustre-release
Branch: b2_15
Current Patch Set: 1
Commit: f957b4f369c0804388fecdefce51d5662c757f6f

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50876/
Subject: LU-16232 script: fix the argument parse
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 99144a595b767ef79acec058c838759bea73c579

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50558/
Subject: LU-16232 scripts: clean specific MDTs update llogs
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 8546628c23b1ba1785e42ec9b1bc4b77acced5c6

[Gerrit Updater]

"Yang Sheng <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50876
Subject: LU-16232 script: fix the argument parse
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: aa0ded5d3504187b1f3fe852bb5e464569f5eb7c

[Mikhail Pershin]

I've just added to the ticket another script which allows to collect update logs on live server node by using debugfs. It helps to get llogs for further analysis and replace multiple commands need to be executed for that

[Gerrit Updater]

"Mikhail Pershin <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50558
Subject: LU-16232 scripts: clean specific MDTs update llogs
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: a399335cdcc6561077a1400572128b523c461a16

[Mikhail Pershin]

Chris, try it with bash : # bash ./remove_updatelog

The syntax of '< <()' correct in bash (that is process substitution, creates temp file and redirects from it) but may be not in other shells. Your proposal is possible replacement so it is worth to update script in that manner but for now just call bash explicitly