Ceph - Why pg_log's are above 10000 in the count and how to trim them?

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Issue

Ceph - Why pg_log's are above 10000 in the count and how to trim them?
Ceph OSD High memory utilization when pg_log's are above 10000.
Ceph OSD is consuming a lot of memory during OSD boot process.

Environment

Red Hat Ceph Storage 2
Red Hat Ceph Storage 3

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