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FAIL: docker_cli_logs_test.go:250: DockerSuite.TestLogsFollowSlowStdoutConsumer #29341

@yummypeng

Description

@yummypeng

Description

When I run docker-v1.9.1 integration test these days, I always got this error:

----------------------------------------------------------------------
FAIL: docker_cli_logs_test.go:250: DockerSuite.TestLogsFollowSlowStdoutConsumer

docker_cli_logs_test.go:279:
    c.Fatalf("Invalid bytes read: %d, expected %d", actual, expected)
... Error: Invalid bytes read: 2786, expected 200000


----------------------------------------------------------------------

I have tried to explore the issue list but haven't got a helpful solution. However, this failure didn't appear in docker-v1.11.2. I guess maybe the implementation of docker logs -f in docker-v1.9.1 causes the issue but I can't find the root causes.
Tons of thanks if anyone can help.

Steps to reproduce the issue:

root@ubuntu:~/docker# TESTFLAGS='-check.f TestLogsFollowSlowStdoutConsumer' make test-integration-cli

Output of docker version:

root@ubuntu:~/docker# docker version
Client:
 Version:      1.12.1
 API version:  1.24
 Go version:   go1.6.3
 Git commit:   23cf638
 Built:        Thu Aug 18 05:22:43 2016
 OS/Arch:      linux/amd64

Server:
 Version:      1.12.1
 API version:  1.24
 Go version:   go1.6.3
 Git commit:   23cf638
 Built:        Thu Aug 18 05:22:43 2016
 OS/Arch:      linux/amd64

Additional environment details (AWS, VirtualBox, physical, etc.):

root@ubuntu:~/docker# uname -a
Linux ubuntu 3.16.0-77-generic #99~14.04.1-Ubuntu SMP Tue Jun 28 19:17:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

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