Bug 1568017
Summary: | incorrect mtu in node-config.yaml on GCE | ||
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Product: | OpenShift Container Platform | Reporter: | Weihua Meng <wmeng> |
Component: | Installer | Assignee: | Russell Teague <rteague> |
Status: | CLOSED ERRATA | QA Contact: | Weihua Meng <wmeng> |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | 3.10.0 | CC: | aos-bugs, bmeng, hongli, jokerman, mmccomas, wmeng |
Target Milestone: | --- | ||
Target Release: | 3.10.0 | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: |
Cause: Default value of MTU was not being determined by looking at the local host interfaces.
Consequence: Default value was set to one that was hard coded
Fix: Updated SDN MTU value to default based on value of local host interfaces.
Result: Default SDN MTU set as expected for host.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2018-07-30 19:13:03 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: | |
Embargoed: |
Description
Weihua Meng
2018-04-16 15:22:07 UTC
Can you provide a complete list of interfaces on the host? [root@qe-wmeng21-master-etcd-1 ~]# grep -r mtu /etc/origin/node/ /etc/origin/node/bootstrap-node-config.yaml: mtu: 8951 /etc/origin/node/node-config.yaml: mtu: 8951 [root@qe-wmeng21-master-etcd-1 ~]# ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1460 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 42:01:0a:f0:00:04 brd ff:ff:ff:ff:ff:ff 3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default link/ether 02:42:46:1e:fa:f9 brd ff:ff:ff:ff:ff:ff 4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether e6:99:c0:61:9f:fc brd ff:ff:ff:ff:ff:ff 5: br0: <BROADCAST,MULTICAST> mtu 8951 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 8a:c8:a8:4f:40:4a brd ff:ff:ff:ff:ff:ff 6: vxlan_sys_4789: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000 link/ether be:2a:56:f1:c5:ea brd ff:ff:ff:ff:ff:ff 7: tun0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/ether ca:ec:45:c9:09:e4 brd ff:ff:ff:ff:ff:ff 9: vethf87cb036@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue master ovs-system state UP mode DEFAULT group default link/ether 1a:3b:d4:76:6e:5f brd ff:ff:ff:ff:ff:ff link-netnsid 1 10: veth7a30e967@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue master ovs-system state UP mode DEFAULT group default link/ether fe:26:f6:9a:a2:30 brd ff:ff:ff:ff:ff:ff link-netnsid 0 11: veth79ab9764@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue master ovs-system state UP mode DEFAULT group default link/ether 4e:68:30:0f:46:e8 brd ff:ff:ff:ff:ff:ff link-netnsid 2 12: vethe2f6f3a6@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue master ovs-system state UP mode DEFAULT group default link/ether 8a:6f:48:c8:f7:95 brd ff:ff:ff:ff:ff:ff link-netnsid 3 [root@qe-wmeng21-master-etcd-1 ~]# Need to change roles/openshift_node_group/defaults/main.yml to use openshift.node.sdn_mtu as default rather than 8951 openshift-ansible-3.10.0-0.24.0.git.0.fd7f37c.el7 Fixed. openshift-ansible-3.10.0-0.26.0.git.0.dbc127c.el7.noarch # grep mtu /etc/origin/node/node-config.yaml mtu: 1410 Operating System: Red Hat Enterprise Linux Server 7.5 (Maipo) CPE OS Name: cpe:/o:redhat:enterprise_linux:7.5:GA:server Kernel: Linux 3.10.0-862.el7.x86_64 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-2018:1816 |