Bug 33741
| Summary: | uvmmd-check.sh checks UVMMd, but restart libvirtd | ||
|---|---|---|---|
| Product: | UCS | Reporter: | Philipp Hahn <hahn> |
| Component: | Virtualization - UVMM | Assignee: | Philipp Hahn <hahn> |
| Status: | CLOSED FIXED | QA Contact: | Erik Damrose <damrose> |
| Severity: | normal | ||
| Priority: | P3 | CC: | gohmann, jmm |
| Version: | UCS 3.2 | Flags: | hahn:
Patch_Available+
|
| Target Milestone: | UCS 3.2-0-errata | ||
| Hardware: | All | ||
| OS: | Linux | ||
| See Also: | https://forge.univention.org/bugzilla/show_bug.cgi?id=28017 | ||
| What kind of report is it?: | --- | What type of bug is this?: | --- |
| Who will be affected by this bug?: | --- | How will those affected feel about the bug?: | --- |
| User Pain: | Enterprise Customer affected?: | ||
| School Customer affected?: | ISV affected?: | ||
| Waiting Support: | Flags outvoted (downgraded) after PO Review: | ||
| Ticket number: | Bug group (optional): | Large environments, Troubleshooting, UCS Performance | |
| Max CVSS v3 score: | |||
| Bug Depends on: | |||
| Bug Blocks: | 28017, 34321 | ||
I currently see this issue at a big customer system, where 1537 from 1543 lines of uvmm-error.log claim, they would restart UVMMd, but actually don't do that. IMHO this should be fixed ASAP! (In reply to Philipp Hahn from comment #1) > IMHO this should be fixed ASAP! That was wrongly introduced with r36268 in UCS 3.1, Bug #19145. r47339 | Bug #33741: UVMM: Fix check-script to restart UVMMd univention-virtual-machine-manager-daemon_3.0.17-3.482.201401221005 r47340 | Bug #33741: UVMM: Fix check-script to restart UVMMd (YAML) OK: The fix works and the script now actually restarts uvmm OK: YAML -> Verified |
/usr/lib/univention-virtual-machine-manager-daemon/uvmmd-check.sh checks for "uvmm groups" to return any data, which communicates with *UVMMd*, which is running on the management node. If no data is returned, it restart "libvirt-bin" AKA *libvirtd*, which is supposed to be running only the virtualization hosts. Only when the management node is also a virtualization host does the script do anything useful. Fix: - invoke-rc.d libvirt-bin restart >/dev/null 2>&1 + invoke-rc.d univention-virtual-machine-manager-daemon restart >/dev/null 2>&1 In addition to that a similar script might be used on the virtualization hosts to check if libvirtd is still working: #!/bin/bash # Check for functional libvirtd exec >>"/var/log/univention/virtual-machine-manager-daemon-errors.log" 2>&1 if [ -f /proc/xen/privcmd ] then uri="xen+unix:///" elif [ -c /dev/kvm ] then uri="qemu:///system" else exit 0 fi if sv status /etc/runit/univention-libvirt | grep -q ^run then tmpfile="$(mktemp)" trap "rm -f '$tmpfile'" EXIT virsh -c "$uri" list >"$tmpfile" & pid=$! sleep ${uvmm_check_timeout:-5}s if [ ! -s "$tmpfile" ] then kill $pid wait $pid invoke-rc.d libvirt-bin restart fi fi exit 0