Re: [Moosefs-users] bug ?

[Michał B. <mic...@ge...>]

Hi!

 

Is it possible that you run out of memory? Snapshot is a quite RAM consuming
operation in the master server.

 

 

Kind regards

Michał Borychowski 

MooseFS Support Manager

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Gemius S.A.

ul. Wołoska 7, 02-672 Warszawa

Budynek MARS, klatka D

Tel.: +4822 874-41-00

Fax : +4822 874-41-01

 

From: Sébastien MERTES [mailto:seb...@u-...] 
Sent: Friday, January 27, 2012 5:52 PM
To: moo...@li...
Subject: [Moosefs-users] bug ?

 

Hello,

I have a big problem with the filsystem MooseFS. The operating system is
Freebsd 8.2.

The command truss on the processus mfsmaster show error following :
ERR#35 'Resource temporarily unavailable'

The command rm -rf "snapshot name"  disconnect the mfschunkservers and
mfsmetaloggers because the mfsmaster processus status is STOP.
It's the same bahavior with mfsmakesnapshot.

chunk3 mfschunkserver[12415]: connecting ...
chunk3 mfschunkserver[12415]: connected to Master


The command top following show the mfsmaster status :  

4233 mfs              1  44  -19  5438M  3878M swread  0   0:19  2.10%
mfsmaster
4187 mfs             24  44  -19 93288K 54816K ucond   0   0:04  0.10%
mfschunkserver
4180 mfs              1  44  -19  5440M  2945M STOP    0   1:49  0.00%
mfsmaster

The mfsmaster process increases the swap abnormally.

I observed than the metadata.mfs file have a big size when I stop the
mfsmaster. This size is the double of the original.



Can you help me please ?

Thanks

Sébastien