Bug 1848094
Summary: | High number of TX errors on geneve interfaces [coredns misconfiguration] | |||
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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. |