[Moosefs-users] Failure recovery process

[Jun C. P. <jun...@gm...>]

Hi,

I'm wondering how I can make sure if the recovery process from failure
(e.g., missing chunks due to node failure) has been done.

Let me consider a little sophisticated scenario, assuming that setgoal
is 3 and there are three chunkservers.

1. A chunkserver fails down for 5 minutes.
2. During the 5 mins, there have been a lot of update requests for the
existing files and new creation of files, thereby relevant chunks are
updated only on the currently alive two nodes.
3. After 5 mins, the failed node comes back, I think the metadata
server will recognize that there are some missing chunks and new
updates on the existing chunks.

I could see via mfsfileinfo and mfscheckfile that the metadata server
starts to gradually recover the inconsistent state by creating the
missing chunks. However, it was ambiguous to figure out if the new
updates of the existing chunks also were synchronized.

Is there any specific way or command to see if the whole recovery
process is really done including the new updates on chunks?

Thanks,

-Jun