Re: [MooseFS-Users] Change DATA_PATH on-the-fly

[Aleksander W. <ale...@mo...>]

Hello,

In MooseFS GPL version there is no possibility  to change mfsmaster
data_path without restarting process. Data_path during process start is
set as current working directory.
If you system need to work without long break time, please consider to
use MooseFS PRO version.

In PRO version saving metadata scenario is little bit different than in
single master model(GPL version).
Master leader saving metadata every 24 hour and master follower's saving
data every hour.
So in PRO version you can change data_path on master follower and
restart process without any interruptions.

If you are interested in MooseFS PRO version tests please write to
su...@mo....
 
Best regards
Aleksander Wieliczko
Technical Support Engineer
MooseFS.com <moosefs.com>


On 11/16/2015 09:14 PM, Wilson, Steven M wrote:
> Hi,
>
> I'm wondering if there is a way to change the DATA_PATH location where
> mfsmaster writes its files without restarting mfsmaster.  I have one
> MooseFS file system that takes over 70 seconds to write its metadata
> to disk at the top of each hour.  I'd like to try pointing DATA_PATH
> to an SSD drive to see how much that would help but I don't want to
> stop a very active server just to try out this experiment.
>
> Thanks!
>
> Steve
>
>
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