Re: [Moosefs-users] Backing up MFS metadata

[Stas O. <sta...@gm...>]

Hi.

Getting back to this to clarify the matter:

>
>  You can backup changelog files (you would need just the two newest ones –
>> “0” and “1”). You can make these backups even every minute. So you can have
>> potentially lost information for about 1-2 minutes.
>>
>>
According to article only "0" file contains the ongoing info, so why the "1"
is needed?
How often the checkpoint files are updated?

>
>>
>

>  But the question is – why to back up changelogs manually? Metalogger
>> machines are dedicated to this. You can have as many metalogger machines on
>> the network as you like. And metalogger process can be run on any computer,
>> even an older one.
>>
>>
Perhaps I can put metaloggers on the chunkservers? How much resources the
metalogger takes?

Regards.