Error log print

[Cyber-SiKu]

Describe the bug (描述bug)

Since the error log is printed on the standard output, the content running in the container will be saved in the docker directory, causing the log to occupy a large amount of disk. It is hoped that it will only be printed in the log file instead of the standard output.
This is an entry.

To Reproduce (复现方法)

Expected behavior (期望行为)

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Additional context/screenshots (更多上下文/截图)

[NaturalSelect]

Hello @Cyber-SiKu , I'm interested in this issue, please let me try it.

[NaturalSelect]

Hello @Cyber-SiKu, glog still write log to stderr, even FLAGS_logtostderr is false.

Here is my scheme:

• If FLAGS_logtostderr is false, use dup2 function to set fd2(stderr) to /dev/null.