Bug 1566643

Summary: tcmu-runner systemd unit file should stop/restart ceph-iscsi-gw unit
Product: Red Hat Ceph Storage Reporter: Jason Dillaman <jdillama>
Component: iSCSIAssignee: Jason Dillaman <jdillama>
Status: CLOSED ERRATA QA Contact: Manohar Murthy <mmurthy>
Severity: unspecified Docs Contact:
Priority: medium    
Version: 3.0CC: ceph-eng-bugs, ceph-qe-bugs, tchandra
Target Milestone: rc   
Target Release: 3.1   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: tcmu-runner-1.4.0-0.1.el7cp Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-09-26 18:19:46 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Jason Dillaman 2018-04-12 16:41:23 UTC
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):
1.3

How reproducible:
100%

Steps to Reproduce:
1. attempt to restart tcmu-runner with active IO workloas

Actual results:
The process will hang and/or crash.

Expected results:
You can gracefully restart the daemon.

Additional info:

Comment 8 errata-xmlrpc 2018-09-26 18:19:46 UTC
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.

https://access.redhat.com/errata/RHBA-2018:2819