Re: radosgw new zonegroup hammers master with metadata sync

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I recreated the site and the problem still persists.

I've upped the logging and saw this for a lot of buckets (i've stopped the
debug log after some seconds).
2023-06-20T23:32:29.365+0000 7fcaab7fe700 20 get_system_obj_state:
rctx=0x7fcaab7f9320 obj=dc3.rgw.meta:root:s3bucket-fra2
state=0x7fcba05ac0a0 s->prefetch_data=0
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache get:
name=dc3.rgw.meta+root+s3bucket-fra2 : miss
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache put:
name=dc3.rgw.meta+root+s3bucket-fra2 info.flags=0x6
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 adding
dc3.rgw.meta+root+s3bucket-fra2 to cache LRU end
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache get:
name=dc3.rgw.meta+root+s3bucket-fra2 : type miss (requested=0x1, cached=0x6)
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache put:
name=dc3.rgw.meta+root+s3bucket-fra2 info.flags=0x1
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 moving
dc3.rgw.meta+root+s3bucket-fra2 to cache LRU end
2023-06-20T23:32:29.365+0000 7fcaab7fe700 20 get_system_obj_state:
rctx=0x7fcaab7f9320
obj=dc3.rgw.meta:root:.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
state=0x7fcba43ce0a0 s->prefetch_data=0
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache get:
name=dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
: miss
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache put:
name=dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
info.flags=0x16
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 adding
dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
to cache LRU end
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache get:
name=dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
: type miss (requested=0x13, cached=0x16)
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 cache put:
name=dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
info.flags=0x13
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 moving
dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29
to cache LRU end
2023-06-20T23:32:29.365+0000 7fcaab7fe700 10 chain_cache_entry:
cache_locator=dc3.rgw.meta+root+.bucket.meta.s3bucket-fra2:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2297866866.29

Am Di., 20. Juni 2023 um 19:29 Uhr schrieb Boris <bb@xxxxxxxxx>:

> Hi Casey,
> already did restart all RGW instances.  Only helped for 2 minutes. We now
> stopped the new site.
>
> I will remove and recreate it later.
> As twi other sites don't have the problem I currently think I made a
> mistake in the process.
>
> Mit freundlichen Grüßen
>  - Boris Behrens
>
> > Am 20.06.2023 um 18:30 schrieb Casey Bodley <cbodley@xxxxxxxxxx>:
> >
> > hi Boris,
> >
> > we've been investigating reports of excessive polling from metadata
> > sync. i just opened https://tracker.ceph.com/issues/61743 to track
> > this. restarting the secondary zone radosgws should help as a
> > temporary workaround
> >
> >> On Tue, Jun 20, 2023 at 5:57 AM Boris Behrens <bb@xxxxxxxxx> wrote:
> >>
> >> Hi,
> >> yesterday I added a new zonegroup and it looks like it seems to cycle
> over
> >> the same requests over and over again.
> >>
> >> In the log of the main zone I see these requests:
> >> 2023-06-20T09:48:37.979+0000 7f8941fb3700  1 beast: 0x7f8a602f3700:
> >> fd00:2380:0:24::136 - - [2023-06-20T09:48:37.979941+0000] "GET
> >>
> /admin/log?type=metadata&id=62&period=e8fc96f1-ae86-4dc1-b432-470b0772fded&max-entries=100&&rgwx-zonegroup=b39392eb-75f8-47f0-b4f3-7d3882930b26
> >> HTTP/1.1" 200 44 - - -
> >>
> >> Only thing that changes is the &id.
> >>
> >> We have two other zonegroups that are configured identical (ceph.conf
> and
> >> period) and these don;t seem to spam the main rgw.
> >>
> >> root@host:~# radosgw-admin sync status
> >>          realm 5d6f2ea4-b84a-459b-bce2-bccac338b3ef (main)
> >>      zonegroup b39392eb-75f8-47f0-b4f3-7d3882930b26 (dc3)
> >>           zone 96f5eca9-425b-4194-a152-86e310e91ddb (dc3)
> >>  metadata sync syncing
> >>                full sync: 0/64 shards
> >>                incremental sync: 64/64 shards
> >>                metadata is caught up with master
> >>
> >> root@host:~# radosgw-admin period get
> >> {
> >>    "id": "e8fc96f1-ae86-4dc1-b432-470b0772fded",
> >>    "epoch": 92,
> >>    "predecessor_uuid": "5349ac85-3d6d-4088-993f-7a1d4be3835a",
> >>    "sync_status": [
> >>        "",
> >> ...
> >>        ""
> >>    ],
> >>    "period_map": {
> >>        "id": "e8fc96f1-ae86-4dc1-b432-470b0772fded",
> >>        "zonegroups": [
> >>            {
> >>                "id": "b39392eb-75f8-47f0-b4f3-7d3882930b26",
> >>                "name": "dc3",
> >>                "api_name": "dc3",
> >>                "is_master": "false",
> >>                "endpoints": [
> >>                ],
> >>                "hostnames": [
> >>                ],
> >>                "hostnames_s3website": [
> >>                ],
> >>                "master_zone": "96f5eca9-425b-4194-a152-86e310e91ddb",
> >>                "zones": [
> >>                    {
> >>                        "id": "96f5eca9-425b-4194-a152-86e310e91ddb",
> >>                        "name": "dc3",
> >>                        "endpoints": [
> >>                        ],
> >>                        "log_meta": "false",
> >>                        "log_data": "false",
> >>                        "bucket_index_max_shards": 11,
> >>                        "read_only": "false",
> >>                        "tier_type": "",
> >>                        "sync_from_all": "true",
> >>                        "sync_from": [],
> >>                        "redirect_zone": ""
> >>                    }
> >>                ],
> >>                "placement_targets": [
> >>                    {
> >>                        "name": "default-placement",
> >>                        "tags": [],
> >>                        "storage_classes": [
> >>                            "STANDARD"
> >>                        ]
> >>                    }
> >>                ],
> >>                "default_placement": "default-placement",
> >>                "realm_id": "5d6f2ea4-b84a-459b-bce2-bccac338b3ef",
> >>                "sync_policy": {
> >>                    "groups": []
> >>                }
> >>            },
> >> ...
> >>
> >> --
> >> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
> >> groüen Saal.
> >> _______________________________________________
> >> ceph-users mailing list -- ceph-users@xxxxxxx
> >> To unsubscribe send an email to ceph-users-leave@xxxxxxx
> >
>


-- 
Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
groüen Saal.
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