Anybody here coming over FROM mogilefs?

[Dennis McEntire]

I was wondering if anyone has migrated FROM MogileFS to XtreemFS? We
are in the process of doing just that since our MogileFS testing has
failed after a few months of testing. It didn't handle large files
very well and it seemed to fail for no reason at all at random times.
Anyway, we have finally given up in frustration and XtreemFS seems to
be a very robust solution for us, and we're eager to test it out and
deploy it in our environment.

This is just a call for any comments on any comparisons between the
two "distributed file systems" and what experiences people have had
between the two systems.

Thank you for your time,

Dennis McEntire
pointclickngo, inc.

[Felix Hupfeld]

Hi Denis,

welcome to XtreemFS then! 

I am not sure if anyone can provide you with a comparison here, and I am not very familiar with MogileFS, but in general I'd say that you can expect XtreemFS to be reliable and unlikely to surprise you with things like "not handling large files well". However, XtreemFS probably doesn't have an as-long track record in production as MogileFS has, so you might find things missing in the production monitoring and tools side of things. In this case, please let us know, or feel free to add things yourself.

A quick comparison with the feature list on danga.com/mogilefs:

* XtreemFS also has "automatic" file replication, which I'd say is pretty flexible and configurable. 

* We currently have single point of failure, our metadata and directory server, but implementing replication for them is underway

* XtreemFS is a full-featured distributed file system, POSIX compliant, incl. ACLs, etc.

* XtreemFS has checksums

... Felix