Hi,
Update to 15.2.5. We have the same issue, in the relase notes they don’t mention anything regarding multisite, but once we updated everything started to work ith 15.2.5.
Best regards
From: Michael Breen <michael.breen@xxxxxxxxxxxxxxxxxxxx>
Sent: Friday, November 6, 2020 10:40 PM
To: ceph-users@xxxxxxx
Subject: [Suspicious newsletter] Re: Multisite sync not working - permission denied
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Continuing my fascinating conversation with myself:
The output of radosgw-admin sync status indicates that only the metadata is a problem, i.e., the data itself is syncing, and I have confirmed that. There is no S3 access to the secondary, zone-b, so I could not check replication that way, but having created a bucket on the primary, on the secondary I did
rados -p zone-b.rgw.buckets.data ls
and saw the bucket had been replicated.
My current suspicion is that the user problem is an effect rather than a cause of the metadata sync problem.
I have also discovered a setting debug_rgw_sync which increases the debug level only for the sync code, but found nothing interesting. The additional output seemed all to relate to data rather than metadata.
On Fri, 6 Nov 2020 at 11:47, Michael Breen <michael.breen@xxxxxxxxxxxxxxxxxxxx> wrote:
I forgot to mention earlier attempted debugging: I believe this is not because the keys are wrong, but because it is looking for a user that is not seen on the secondary:
debug 2020-11-03T16:37:47.330+0000 7f32e9859700 5 req 60 0.003999986s :post_period error reading user info, uid=ACCESS can't authenticate
debug 2020-11-03T16:37:47.330+0000 7f32e9859700 20 req 60 0.003999986s :post_period rgw::auth::s3::LocalEngine denied with reason=-2028
debug 2020-11-03T16:37:47.330+0000 7f32e9859700 20 req 60 0.003999986s :post_period rgw::auth::s3::AWSAuthStrategy denied with reason=-2028
debug 2020-11-03T16:37:47.330+0000 7f32e9859700 5 req 60 0.003999986s :post_period Failed the auth strategy, reason=-2028
debug 2020-11-03T16:37:47.330+0000 7f32e9859700 10 failed to authorize request
src/rgw/rgw_common.h:#define ERR_INVALID_ACCESS_KEY 2028
./src/rgw/rgw_rest_s3.cc
if (rgw_get_user_info_by_access_key(ctl->user, access_key_id, user_info) < 0) {
ldpp_dout(dpp, 5) << "error reading user info, uid=" << access_key_id
<< " can't authenticate" << dendl;
On Fri, 6 Nov 2020 at 11:38, Michael Breen <michael.breen@xxxxxxxxxxxxxxxxxxxx> wrote:
Hi,
radosgw-admin -v
ceph version 15.2.4 (7447c15c6ff58d7fce91843b705a268a1917325c) octopus (stable)
Multisite sync was something I had working with a previous cluster and an earlier Ceph version, but it doesn't now, and I can't understand why.
If anyone with an idea of a possible cause could give me a clue I would be grateful.
I have clusters set up using Rook, but as far as I can tell, that's not a factor.
On the primary cluster, I have this:
radosgw-admin zonegroup get --rgw-zonegroup zonegroup-a
{
"id": "b115d74a-2d5f-4127-b621-0223f1e96c71",
"name": "zonegroup-a",
"api_name": "zonegroup-a",
"is_master": "true",
"endpoints": [
"http://192.168.30.8:80"
],
"hostnames": [],
"hostnames_s3website": [],
"master_zone": "024687e0-1461-4f45-9149-9e571791c2b3",
"zones": [
{
"id": "024687e0-1461-4f45-9149-9e571791c2b3",
"name": "zone-a",
"endpoints": [
"http://192.168.30.8:80"
],
"log_meta": "false",
"log_data": "true",
"bucket_index_max_shards": 11,
"read_only": "false",
"tier_type": "",
"sync_from_all": "true",
"sync_from": [],
"redirect_zone": ""
},
{
"id": "6ba0ee26-0155-48f9-b057-2803336f0d66",
"name": "zone-b",
"endpoints": [
"http://192.168.30.108:80"
],
"log_meta": "false",
"log_data": "true",
"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": "8c38fa05-c19d-4e30-bc98-e2bc84eccb68",
"sync_policy": {
"groups": []
}
}
It's identical on the secondary (that's after a realm pull, an update of the zone-b endpoints, and a period commit), which I double-checked by piping the output to md5sum on both sides.
The system user created on the primary is
radosgw-admin user info --uid realm-a-system-user
{
...
"keys": [
{
"user": "realm-a-system-user",
"access_key": "IUs+USI5IjA8WkZPRjU=",
"secret_key": "PGRDSzRERD4lbF9AYThuLzkvW1QvL148Q147PA=="
}
...
}
The zones on both sides have these keys
radosgw-admin zone get --rgw-zone zone-a
{
...
"system_key": {
"access_key": "IUs+USI5IjA8WkZPRjU=",
"secret_key": "PGRDSzRERD4lbF9AYThuLzkvW1QvL148Q147PA=="
},
...
}
radosgw-admin zone get --rgw-zonegroup zonegroup-a --rgw-zone zone-b
{
...
"system_key": {
"access_key": "IUs+USI5IjA8WkZPRjU=",
"secret_key": "PGRDSzRERD4lbF9AYThuLzkvW1QvL148Q147PA=="
},
...
}
Yet, on the secondary
radosgw-admin sync status
realm 8c38fa05-c19d-4e30-bc98-e2bc84eccb68 (realm-a)
zonegroup b115d74a-2d5f-4127-b621-0223f1e96c71 (zonegroup-a)
zone 6ba0ee26-0155-48f9-b057-2803336f0d66 (zone-b)
metadata sync preparing for full sync
full sync: 64/64 shards
full sync: 0 entries to sync
incremental sync: 0/64 shards
metadata is behind on 64 shards
behind shards: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63]
data sync source: 024687e0-1461-4f45-9149-9e571791c2b3 (zone-a)
syncing
full sync: 0/128 shards
incremental sync: 128/128 shards
data is caught up with source
and on the primary
radosgw-admin sync status
realm 8c38fa05-c19d-4e30-bc98-e2bc84eccb68 (realm-a)
zonegroup b115d74a-2d5f-4127-b621-0223f1e96c71 (zonegroup-a)
zone 024687e0-1461-4f45-9149-9e571791c2b3 (zone-a)
metadata sync no sync (zone is master)
2020-11-06T10:58:46.345+0000 7fa805c201c0 0 data sync zone:6ba0ee26 ERROR: failed to fetch datalog info
data sync source: 6ba0ee26-0155-48f9-b057-2803336f0d66 (zone-b)
failed to retrieve sync info: (13) Permission denied
Given that all the keys above match, that "permission denied" is a mystery to me, but it does accord with:
export AWS_ACCESS_KEY_ID="IUs+USI5IjA8WkZPRjU="
export AWS_SECRET_ACCESS_KEY="PGRDSzRERD4lbF9AYThuLzkvW1QvL148Q147PA=="
s3cmd ls --no-ssl --host-bucket= --host=192.168.30.8 # OK, but:
s3cmd ls --no-ssl --host-bucket= --host=192.168.30.108
# ERROR: S3 error: 403 (InvalidAccessKeyId)
# Although
curl -L http://192.168.30.108 # works: <?xml version="1.0" encoding="UTF-8 ...
192.168.30.108 is the external IP, but just to be certain I was hitting zone-b, I tried this also within the cluster using its internal IP
s3cmd ls --no-ssl --host-bucket= --host=10.41.157.115
# ERROR: S3 error: 403 (InvalidAccessKeyId)
This seems to be the reason it's not syncing, but why?
The user with those keys existed on the primary before the realm pull, in agreement with every procedure I have seen for setting up multisite.
Any suggestions?
Regards,
Michael
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