Ceph » RADOS

This issue occurs when incorrectly erasing a map element in a for loop:
After line https://github.com/ceph/ceph/blob/main/src/mon/PGMap.cc#L1218, the iterator "i" will become invalid,
Thus making the for-loop enter an undefined situation.

It caused a hang in my case, and because it can't release the locks, it also starved all other threads.
The mgr logs are full of auth rotating errors:
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2023-07-02T00:00:10.946+0000 7f48aa7fc640 1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:10.952817+0000)
2023-07-02T00:00:11.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:11.952939+0000)
2023-07-02T00:00:12.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:12.953042+0000)
2023-07-02T00:00:13.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:13.953143+0000)
2023-07-02T00:00:14.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:14.953244+0000)
2023-07-02T00:00:15.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:15.953348+0000)
2023-07-02T00:00:16.946+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:16.953451+0000)
2023-07-02T00:00:17.950+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:17.953580+0000)
2023-07-02T00:00:18.950+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:18.953691+0000)
2023-07-02T00:00:19.950+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:19.953797+0000)
2023-07-02T00:00:20.950+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:20.953899+0000)
2023-07-02T00:00:21.950+0000 7f48aa7fc640 -1 monclient: _check_auth_rotating possible clock skew, rotating keys expired way too early (before 2023-07-01T23:00:21.954013+0000)
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This issue is observed on the 17.2.5 cluster, but still an issue in the main.