Description of problem:
tcmu-runner cannot gracefully handle restarting when there is active IO and the fix requires a kernel change. In the meantime, the workaround for this issue is to stop the ceph-iscsi-gw service first (so that the gateway is cleanly shut down), restart tcmu-runner, and then restart ceph-iscsi-gw to bring the target portal back online.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. attempt to restart tcmu-runner with active IO workloas
The process will hang and/or crash.
You can gracefully restart the daemon.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.