Ceph - what is an OSD blocklist and what to do about it?

Solution Verified - Updated -

Issue

I was running the ceph osd dump command and it did list blocklist items:

# ceph osd dump
[...]
blocklist 10.37.192.139:0/1308721908 expires 2019-02-27 10:10:52.049084

What does that mean and how can I resolve this?

Environment

  • Red Hat Ceph Storage

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