Windows log rotation

[Simon Dean]

I know that the logRotate command doesn't work in Windows.  However, there is also no SIGUSR1 in Windows and mongod locks the log files, so currently I can't see a way at all to truncate/rotate the logfiles mongod creates.

Anybody got any ideas?  It makes a production mongo install on Windows a bit of a challenge!

Many thanks

Simon

[Nat]

You can send a command logRotate using any drivers:

db.runCommand("logRotate");

[Simon Dean]

Wow fast!  Unfortunately that doesn't seem to work when mongod runs on a Windows server.  I've tried it from a mongo shell & through pymongo and always get 'access denied'.  Btw I'm running mongod as a windows service.

Any other help?

Thanks

[Nat]

Sorry, I forgot that this hasn't been implemented yet: https://jira.mongodb.org/browse/SERVER-2612. Please vote on it.

[Simon Dean]

Okay, done - but the question still remains...how do I get round this?  Anybody any suggestions as to how to rotate the logs on Windows?

[Nat]

currently, mongodb hold exclusive lock to the file, so i don't think it's possible.

[Simon Dean]

Thanks for all the speedy help Nat. Unfortunately that makes moving
mongodb to a Windows server production system (I'm developing
currently) a real pain!

[Nat]

If you *really* want to do it, you can write a small wrapper around mongodb to start it as a service by using command line and let the log go to standard console and redirect it to a tool like chronolog http://cronolog.org/