Hi,
8 out of 192 OSDs in our cluster (version 12.2.5) write plenty of records like "cls_rgw.cc:3284: gc_iterate_entries end_key=" to the corresponding log files, e.g.
2018-08-07 04:34:06.000585 7fdd8f012700 0 <cls> /build/ceph-12.2.5/src/cls/rgw/cls_rgw.cc:3284: gc_iterate_entries end_key=1_01533616446.000580407
2018-08-07 04:34:06.001888 7fdd8f012700 0 <cls> /build/ceph-12.2.5/src/cls/rgw/cls_rgw.cc:3284: gc_iterate_entries end_key=1_01533616446.001886318
2018-08-07 04:34:06.003395 7fdd8f012700 0 <cls> /build/ceph-12.2.5/src/cls/rgw/cls_rgw.cc:3284: gc_iterate_entries end_key=1_01533616446.003390299
2018-08-07 04:34:06.005205 7fdd8f012700 0 <cls> /build/ceph-12.2.5/src/cls/rgw/cls_rgw.cc:3284: gc_iterate_entries end_key=1_01533616446.005200341
# grep '2018-08-07 04:34:06' /var/log/ceph/ceph-osd.4.log |wc -l
712
#
At the same time there were like 500 000 expired garbage collection objects.
Log level of OSD subsystem is set to default 1/5 across all OSDs.
I wonder why only few OSDs record this information and is it something to be logged in log level = 1 or maybe higher? https://github.com/ceph/ceph/blob/v12.2.5/src/cls/rgw/cls_rgw.cc#L3284
Thanks
Jakub
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