Re: Large omap in index pool even if properly sharded and not "OVER"

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Are those three different buckets? Could you share the stats for each of them?

radosgw-admin bucket stats --bucket=<BUCKET>

Zitat von "Szabo, Istvan (Agoda)" <Istvan.Szabo@xxxxxxxxx>:

Hello,

Yeah, still:

the .dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.151 | wc -l
290005

and the
.dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.726 | wc -l
289378

And just make me happy more I have one more
.dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.6 | wc -l
181588

This is my crush tree (I'm using host based crush rule)
https://gist.githubusercontent.com/Badb0yBadb0y/9bea911701184a51575619bc99cca94d/raw/e5e4a918d327769bb874aaed279a8428fd7150d5/gistfile1.txt

I'm thinking could that be the issue that host 2s13-15 has less nvme osd (however size wise same as in the other 12 host where have 8x nvme osd) than the others?
But the pgs are located like this:

pg26.427
osd.261 host8
osd.488 host13
osd.276 host4

pg26.606
osd.443 host12
osd.197 host8
osd.524 host14

pg26.78c
osd.89 host7
osd.406 host11
osd.254 host6

If pg26.78c wouldn't be here I'd say 100% the nvme osd distribution based on host is the issue, however this pg is not located on any of the 4x nvme osd nodes 😕

Ty

________________________________
From: Eugen Block <eblock@xxxxxx>
Sent: Tuesday, July 9, 2024 6:02 PM
To: ceph-users@xxxxxxx <ceph-users@xxxxxxx>
Subject: Re: Large omap in index pool even if properly sharded and not "OVER"

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Hi,

the number of shards looks fine, maybe this was just a temporary
burst? Did you check if the rados objects in the index pool still have
more than 200k omap objects? I would try someting like

rados -p <index_pool> listomapkeys
.dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.151 | wc -l


Zitat von "Szabo, Istvan (Agoda)" <Istvan.Szabo@xxxxxxxxx>:

Hi,

I have a pretty big bucket which sharded with 1999 shard so in
theory can hold close to 200m objects (199.900.000).
Currently it has 54m objects.

Bucket limit check looks also good:
 "bucket": ""xyz,
 "tenant": "",
 "num_objects": 53619489,
 "num_shards": 1999,
 "objects_per_shard": 26823,
 "fill_status": "OK"

This is the bucket id:
"id": "9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1"

This is the log lines:
2024-06-27T10:41:05.679870+0700 osd.261 (osd.261) 9643 : cluster
[WRN] Large omap object found. Object:
26:e433e65c:::.dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.151:head PG: 26.3a67cc27 (26.427) Key count: 236919 Size (bytes):
89969920

2024-06-27T10:43:35.557835+0700 osd.89 (osd.89) 9000 : cluster [WRN]
Large omap object found. Object:
26:31ff4df1:::.dir.9213182a-14ba-48ad-bde9-289a1c0c0de8.2479481907.1.726:head PG: 26.8fb2ff8c (26.78c) Key count: 236495 Size (bytes):
95560458

Tried to deep scrub the affected pgs, tried to deep-scrub the
mentioned osds in the log but didn't help.
Why? What I'm missing?

Thank you in advance for your help.

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