[LU-18672] MDT statfs not updated soon enough

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: Max Wang
• Reporter: Max Wang

Description

In LU-17087, bug was fixed to update statfs every hour. However, this may not be sufficient for short-lived workloads.

 

Example debug output when uninitialized

00000020:00001000:126.0:1734107045.877010:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 0 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877011:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 1 usable=1 bavail=8927524 ffree=240979 tgtppo=7112501 tgtp=187254396 svrppo=53343764 svrp=26671882 wt=1886997360
00000020:00001000:126.0:1734107045.877012:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 2 usable=1 bavail=8902568 ffree=243702 tgtppo=7172764 tgtp=183134535 svrppo=53795732 svrp=0 wt=1935589709
00000020:00001000:126.0:1734107045.877012:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 3 usable=0 bavail=9003266 ffree=185050 tgtppo=5508093 tgtp=156228003 svrppo=41310704 svrp=123932114 wt=1346846106
00000020:00001000:126.0:1734107045.877013:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 4 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877013:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 5 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877014:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 6 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877014:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 7 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877015:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 8 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877016:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 9 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877016:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 10 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877017:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 11 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877017:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 12 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877018:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 13 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877018:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 14 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0
00000020:00001000:126.0:1734107045.877019:0:28721:0:(lu_tgt_descs.c:677:ltd_qos_update()) recalc tgt 15 usable=1 bavail=0 ffree=0 tgtppo=0 tgtp=0 svrppo=0 svrp=0 wt=0

 

Issue Links

• is related to: LU-17087 uninitialized statfs may cause some MDTs never chosen to mkdir

Comments

[Gerrit Updater]

"Max Wang <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/57888
Subject: LU-18672 lmv: update stale tgt statfs if uninitialized
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: b671adfd22f60e50011097d449bad290d2c6b16f