Bug 1503458

Summary: oc logs fails with unexpected stream type ""
Product: OpenShift Container Platform Reporter: Vladislav Walek <vwalek>
Component: NodeAssignee: Seth Jennings <sjenning>
Status: CLOSED ERRATA QA Contact: xiuli
Severity: medium Docs Contact:
Priority: unspecified    
Version: 3.6.0CC: aos-bugs, jokerman, lucarval, mmccomas, sjenning, twaugh
Target Milestone: ---   
Target Release: 3.7.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
undefined
Story Points: ---
Clone Of:
: 1521026 (view as bug list) Environment:
Last Closed: 2017-12-05 16:13:45 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:
Bug Depends On:    
Bug Blocks: 1521026    

Description Vladislav Walek 2017-10-18 07:42:30 UTC
Description of problem:

sometimes "oc logs" appears to freeze, with new lines only showing after restarting the client program. In some cases the client would also fail with the error message “unexpected stream type ""”.

The issue was reported https://github.com/kubernetes/kubernetes/issues/47800.

Version-Release number of selected component (if applicable):
oc v3.6.0+c4dd4cf
kubernetes v1.6.1+5115d708d7
features: Basic-Auth GSSAPI Kerberos SPNEGO
docker-1.12.6-55.gitc4618fb.el7.x86_64

How reproducible:

------------
apiVersion: v1
kind: DeploymentConfig
metadata:
  creationTimestamp: null
  generation: 1
  name: btest
spec:
  replicas: 1
  selector:
    deployment-config.name: btest
  strategy:
    activeDeadlineSeconds: 21600
    resources: {}
    rollingParams:
      intervalSeconds: 1
      maxSurge: 25%
      maxUnavailable: 25%
      timeoutSeconds: 600
      updatePeriodSeconds: 1
    type: Rolling
  template:
    metadata:
      creationTimestamp: null
      labels:
        deployment-config.name: btest
    spec:
      containers:
      - command:
        - /bin/sh
        - -c
        - |
          gen() {
            date
            dd if=/dev/urandom bs=1024 count=2 2>/dev/null | base64 | tr -d '\n' | tr -d '[0-9]'
          }
          while sleep .1; do gen; gen >&2; done
        image: docker.io/busybox:latest
        imagePullPolicy: Always
        name: default-container
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
  test: false
  triggers:
  - type: ConfigChange
---------------
Configuration of docker:

/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --authorization-plugin=rhel-push-plugin --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --selinux-enabled -l warn --log-opt max-size=1M --log-opt max-file=3 --storage-driver overlay2 --mtu=1450 --add-registry registry.access.redhat.com 

Steps to Reproduce:
1.
2.
3.

Actual results:
Every time this happens the output of "oc logs" stops, as does the output on the web console.

Expected results:
Following logs

Additional info:

Comment 2 Seth Jennings 2017-10-18 20:24:37 UTC
This was cherry picked to kube 1.7 here:
https://github.com/kubernetes/kubernetes/pull/51871

And brought in as part of the kube 1.7.6 rebase:
https://github.com/openshift/origin/pull/16615

Comment 7 xiuli 2017-11-01 06:05:35 UTC
I can not reproduce the issue on the environment: openshift v3.7.0-0.184.0
kubernetes v1.7.6+a08f5eeb62  etcd 3.2.8

Comment 12 errata-xmlrpc 2017-11-28 22:17:38 UTC
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/RHSA-2017:3188