Bug 1848094
| Summary: | High number of TX errors on geneve interfaces [coredns misconfiguration] | |||
|---|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | OpenShift BugZilla Robot <openshift-bugzilla-robot> | |
| Component: | Networking | Assignee: | Ben Nemec <bnemec> | |
| Networking sub component: | mDNS | QA Contact: | Nataf Sharabi <nsharabi> | |
| Status: | CLOSED ERRATA | Docs Contact: | ||
| Severity: | high | |||
| Priority: | urgent | CC: | amcdermo, aos-bugs, asegurap, augol, bbennett, bnemec, calfonso, ctrautma, dblack, dcbw, dhansen, gnault, jbenc, jishi, jtaleric, mcambria, mkarg, mmasters, mmichels, rkhan, smalleni | |
| Version: | 4.4 | Keywords: | Performance, Reopened, Triaged | |
| Target Milestone: | --- | |||
| Target Release: | 4.5.z | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1852126 1890797 (view as bug list) | Environment: | ||
| Last Closed: | 2020-10-22 20:59:51 UTC | Type: | --- | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | 1841214 | |||
| Bug Blocks: | 1852126 | |||
|
Comment 1
Ben Nemec
2020-06-18 16:07:49 UTC
*** Bug 1852126 has been marked as a duplicate of this bug. *** The fix is in the coredns-mdns plugin, so I'm setting the component to "Networking" with subcomponent "mDNS". Verified on:
[kni@provisionhost-0-0 ~]$ oc version
Client Version: 4.5.0-0.nightly-2020-06-05-214616
Server Version: 4.5.0-0.nightly-2020-07-02-190154
Kubernetes Version: v1.18.3+6025c28
*****************************************************
According to Ben Nemec -
The fix is the ip at the end of the mdns line.
*****************************************************
IPV6
[core@master-0-0 ~]$ cat /etc/coredns/Corefile
. {
errors
health :18080
mdns ocp-edge-cluster-0.qe.lab.redhat.com 0 ocp-edge-cluster-0 fd2e:6f44:5dd8::10f
forward . fe80::5054:ff:fe4b:5b62%bond0 fd2e:6f44:5dd8::1
cache 30
reload
template IN AAAA ocp-edge-cluster-0.qe.lab.redhat.com {
.
.
output omitted
[core@master-0-0 ~]$ ifconfig genev_sys_6081
genev_sys_6081: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 65000
inet6 fe80::7c66:f0ff:fe6a:e21d prefixlen 64 scopeid 0x20<link>
ether 7e:66:f0:6a:e2:1d txqueuelen 1000 (Ethernet)
RX packets 127951 bytes 36687078 (34.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 121808 bytes 44083589 (42.0 MiB)
TX errors 7 dropped 0 overruns 0 carrier 0 collisions 0
IPV4
kni@provisionhost-0-0 clusterconfigs]$ oc version
Client Version: 4.5.0-0.nightly-2020-06-05-214616
Server Version: 4.5.0-0.nightly-2020-07-02-190154
Kubernetes Version: v1.18.3+6025c28
[kni@provisionhost-0-0 clusterconfigs]$
[core@master-0-0 ~]$ cat /etc/coredns/Corefile
. {
errors
health :18080
mdns ocp-edge-cluster-0.qe.lab.redhat.com 0 ocp-edge-cluster-0 192.168.123.127
forward . 192.168.123.1
.
.
output omitted
[core@master-0-0 ~]$ ifconfig genev_sys_6081
genev_sys_6081: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 65000
inet6 fe80::a879:55ff:fe36:b53e prefixlen 64 scopeid 0x20<link>
ether aa:79:55:36:b5:3e txqueuelen 1000 (Ethernet)
RX packets 1146623 bytes 213461945 (203.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1087044 bytes 314429053 (299.8 MiB)
TX errors 7 dropped 0 overruns 0 carrier 0 collisions 0
Verified!
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-2020:2409 Reopening because we've had a request to fix this on the other platforms that use coredns-mdns. |