[go-nuts] glog log rotate not working correctly

[ramkumar . gowrishankar]

So it looks like a bug in the glog library. Anyway to file a bug against it?

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[go-nuts] glog log rotate not working correctly

[Dave Cheney]

This is usually caused by the process writing to a log file that has been 
deleted. This is a very common bug with programs that rotate their own logs and 
a major reason why 12 factor apps recommend that log rotation be down by an 
external program. 

Have a look in /proc/yourprocess/fd with ls -al. If there is an open file 
pointing to a log file with the suffix (deleted), that's the problem. 

Dave

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[go-nuts] glog log rotate not working correctly

[Ramkumar Gowrishankar]

Hi,

I am using the glog to log for my golang program and I have changed the
package to limit maximum file size to 250MB by changing this line (
https://github.com/golang/glog/blob/master/glog_file.go#L34).

The log rotate seems to be working as intended and the file size gets
limited to 250MB but somehow there seems to be a bug in file close/open and
the log directory keeps filling up until it runs out of space. df -h
command shows that the used space is close to 100% but if I look using du
-h or ls and add up the file sizes it is not close to 100%. My platform is
CentOS7.

Thanks,

Ramkumar

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