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My problem is that my /var partition is over 80% (total size: 4.9G). I was reviewing the files into this partition and I saw a file which has 3.4G. (/var/lib/pengine)

I dig into that /pengine file and I saw it is full of .bz2 extension files. I want to move these files but I would like to know if is risky or not.

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migrated from stackoverflow.com Mar 11 '12 at 4:04

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Actually, I don't understand your problem. Could you make it more clear? –  ciphor Mar 11 '12 at 2:23
    
I edited the main message :) –  Martin_911 Mar 11 '12 at 2:47
    
How about file names? –  Karlson Mar 11 '12 at 4:39
    

3 Answers 3

up vote 1 down vote accepted

bz2 is a type of data compression, it soesn;t tell anything about the purpose of the files .

Pengine (whatever that is, a game?) probably needs them.

If the files are using up most of the space on var you could consider moving them to a partition with more space eg /home

# umask 22
# mkdir /home/var_lib_overflow
# mv /var/lib/pengine /home/var_lib_overflow/
# ln -s /home/var_lib_overflow/pengine /var/lib/

FHS suggests they could be "crash recovery files" from an editor in whih case they should go away by themselves.

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/var/lib/pengine are files used by pacemaker. There are probably lots of them, but I doubt theyre taking up much space. Pacemaker is a high-availability utility, so this means that box is probably a mission-critical box, and so I wouldnt mess around with it if you dont know what youre doing.

However Jansen is correct in that the extension of the file means nothing as to whether you can delete it.
The best idea if you want to delete files that you dont know if theyre needed is to move them to an alternate location. If the system continues to operate normally, you can delete them. If the system has issues, put them back.

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Thanks for your comments and your ideas, but unfortunately I can't take any risk because is a production server but anyways, vendor came and solved just moving the logs to another file. Thank you again for your support as always. –  Martin_911 Mar 21 '12 at 0:19

Short answer: Yes, the files are safe to delete - they are basically just backups of previous cluster states. But...

Long answer: The Policy Engine (the part of a Pacemaker cluster which decides what to do when something happens within the cluster) safes backups of the cluster state (configuration and state of resources) to /var/lib/pengine. These files are not vital (or actually even used) for the operation of the cluster, but might come in handy when investigating failures, because the logs are usually pretty sparse about these things.

So it's wise to keep a few of those around, but on a busy cluster they can clog up the partition after a while. You can limit the number of files kept by pengine by setting the pe-*series-max properties, e.g.

crm configure property pe-error-series-max=1000 pe-input-series-max=1000 pe-warn-series-max=1000

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