Some Client Processes Not Ended
Symptom
Software version: fio 3.26
When fio is used to perform a high-concurrency test, some processes are not ended.

Key Process and Cause Analysis
Run the following command on the Ceph server:
find /var/log/ceph -name "ceph-osd*.log" | xargs tail -n 2
The following error information is displayed:

Conclusion and Solution
- Restart the faulty OSD process on the Ceph server, for example, osd4. The I/O can be ended normally.
systemctl restart ceph-osd@4.service
If there are a large number of abnormal OSD processes, you are advised to restart all OSD processes.
Parent topic: Client Process Abnormalities