On 01/15/2018 09:57 AM, Victor Flávio wrote:
Hello,
We've have a radosgw cluster(verion 12.2.2) in multisite mode. Our
cluster is formed by one master realm, with one master zonegroup and
two zones(which one is the master zone).
We've followed the instructions of Ceph documentation to install and
configure our cluster.
The cluster works as expected, the objects and users are being
replicated between the zones, but we always are getting this error
message in our logs:
2018-01-15 12:25:00.119301 7f68868e5700 1 meta sync: ERROR: failed to
read mdlog info with (2) No such file or directory
Some details about the errors message(s):
- They are only printed in the non-master zone log;
- They are only printed when this "slave" zone try to sync the
metadata info;
- In each synchronization cycle of the metadata info, the number of
this errors messages equals to the number of shards of metadata logs;
- When we run the command "rados-admin mdlogs list", we've got a
empty array as output in both zones;
- The output of "rados-admin sync status" says every is ok and
synced, which is true, despite the mdlog error messages in log.
Anyone got this same problem? And how to fix it. I've tried and failed
to many times to fix it.
--
Victor Flávio de Oliveira Santos
Fullstack Developer/DevOps
http://victorflavio.me
Twitter: @victorflavio
Skype: victorflavio.oliveira
Github: https://github.com/victorflavio
Telefone/Phone: +55 62 81616477
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Hi Victor,
We use a hashing strategy to spread metadata over these mdlog shards.
It's likely that some shards are empty, especially if there are
relatively few buckets/users in the system. These 'No such file or
directory' errors are just trying to read from shard objects that
haven't ever been written to. Logging them as noisy ERROR messages is
certainly misleading, but it's probably nothing to worry about.
Casey
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com