Re: [Moosefs-users] Append and seek while writing functionality

[Michał B. <mic...@ge...>]

MooseFS fully supports appending to a file and writing to any position of a
file. It also supports creating sparse files. 

 

Two independent processes / machines may write in parallel to the same file
at different positions. If two positions are located in different chunks
(pos1 / 64Mi != pos2 / 64Mi) the writing process would be run at normal
speed; if two positions are in the same chunk you can expect a substantial
loss of writing speed (due to chunk lock for writing).

 

 

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: Stas Oskin [mailto:sta...@gm...] 
Sent: Thursday, June 10, 2010 2:13 PM
To: moo...@li...
Cc: MooseFS
Subject: [Moosefs-users] Append and seek while writing functionality

 

Hi.

Does MooseFS supports append functionality?

Also, does it support the ability to seek file being it's being written and
write data in other place (like regular file system)?

Thanks!