| Summary: | Tunnelled migration failed with error "Cannot extract Qemu version from '/usr/libexec/qemu-kvm'" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | weizhang <weizhan> |
| Component: | libvirt | Assignee: | Jiri Denemark <jdenemar> |
| Status: | CLOSED WORKSFORME | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.1 | CC: | dallan, dyuan, gren, llim, mzhan, rwu, veillard, yoyzhang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-22 14:41:54 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
I you restart the test, do you get the same error ? And is it failing more or less after the same number of migrations ? If yes that smells like running out of file descriptors because I don't see what else could be failing in that code ... Daniel (In reply to comment #1) > I you restart the test, do you get the same error ? And is it failing > more or less after the same number of migrations ? > > If yes that smells like running out of file descriptors because I don't > see what else could be failing in that code ... > > Daniel I do more than 2 times and still can get the error info. Is this still reproducible on the latest 0.9.8 builds? (In reply to comment #5) > Is this still reproducible on the latest 0.9.8 builds? I can not reproduce on qemu-kvm-0.12.1.2-2.211.el6.x86_64 kernel-2.6.32-223.el6.x86_64 libvirt-0.9.8-1.el6.x86_64 (In reply to comment #6) > (In reply to comment #5) > > Is this still reproducible on the latest 0.9.8 builds? > > I can not reproduce on > qemu-kvm-0.12.1.2-2.211.el6.x86_64 > kernel-2.6.32-223.el6.x86_64 > libvirt-0.9.8-1.el6.x86_64 Ok, I'll close, but of course don't hesitate to reopen if the problem reappears. |
Description of problem: I do tunnelled migration with 1024 round and since about 500 round it will report an error # virsh migrate --live --p2p --tunnelled kvm-rhel6-i386 qemu+ssh://10.66.85.231/system error: internal error Cannot extract Qemu version from '/usr/libexec/qemu-kvm' Version-Release number of selected component (if applicable): # rpm -qa libvirt qemu-kvm kernel kernel-2.6.32-131.0.5.el6.x86_64 qemu-kvm-0.12.1.2-2.161.el6.x86_64 libvirt-0.8.7-18.el6.x86_64 How reproducible: always Steps to Reproduce: 1. Prepare 2 hosts and prepare a nfs which is mounted on both hosts, and setting the virt_use_nfs boolean on both sides # setsebool -P virt_use_nfs 1 and close the iptable on both sides # iptables -F 2. start a domain on source host using nfs 3. sh migrate.sh <guestname> <source_host_ip> <target_host_ip> cat migrate.sh #!/bin/bash GUEST=$1 HOST1=$2 HOST2=$3 OPTIONS="--live --p2p --tunnelled" TRANSPORT="ssh" date for i in `seq 1 1024`; do echo "Loop ${i}: Migrating ${GUEST} from ${HOST1} to ${HOST2}" echo "COMMAND: virsh migrate ${OPTIONS} ${GUEST} qemu+${TRANSPORT}://${HOST2}/system" time virsh migrate ${OPTIONS} ${GUEST} qemu+${TRANSPORT}://${HOST2}/system >> /tmp/mig_result 2>&1 >> /tmp/mig_result echo "Loop ${i}: Migrating ${GUEST} back from ${HOST2} to ${HOST1}" echo "COMMAND: virsh -c qemu+${TRANSPORT}://${HOST2}/system migrate ${OPTIONS} ${GUEST} qemu+${TRANSPORT}://${HOST1}/system" time virsh -c qemu+${TRANSPORT}://${HOST2}/system migrate ${OPTIONS} ${GUEST} qemu+${TRANSPORT}://${HOST1}/system 2>&1 >> /tmp/mig_result done date 4. see screen output and /tmp/mig_result file Actual results: in the end, there will be errors when doing migration from target to source error: internal error Cannot extract Qemu version from '/usr/libexec/qemu-kvm' Expected results: all 1024 round migration will succeed with no error Additional info: