[Gluster-users] glusterfs unusable?

Joe Julian joe at julianfamily.org
Wed Mar 27 14:53:55 UTC 2019

First, your statement and subject is hyperbolic and combative. In general it's best not to begin any approach for help with an uneducated attack on a community.

GFS (Global File System) is an entirely different project but I'm going to assume you're in the right place and actually asking about GlusterFS.

You haven't described your use case so I'll make an assumption that your intent is to sync files from your office to your home. I'll further guess that you're replicating one brick at home and the other at the office.

Yes, this is generally an unusable use case for to latency and connectivity reasons. Your 2Gb transfer was very likely a self heal due to a connectivity problem from one of your clients. When your home client performed a lookup() of the files, it caught the discrepancy and fixed it. The latency is multiplied due to the very nature of clustering and your latent connection.

For a more useful answer, I'd suggest describing your needs and asking for help. There is tons of experienced storage professionals here that are happy to share their knowledge and advice.

On March 27, 2019 7:23:35 AM PDT, richard lucassen <mailinglists at lucassen.org> wrote:
>Hello list,
>glusterfs 5.4-1 on Debian Buster (both servers and clients)
>I'm quite new to GFS and it's an old problem I know. When running a
>simple "ls -alR" on a local directory containing 50MB and 3468 files it
>real    0m0.567s
>user    0m0.084s
>sys     0m0.168s
>Same thing for a copy of that dir on GFS takes more than 5 seconds:
>real    0m5.557s
>user    0m0.128s
>sys     0m0.208s
>Ok. But from my workstation at home, an "ls -alR" of that directory
>takes more than half an hour and the upload is more than 2GB (no typo:
>TWO Gigabytes). To keep it simple, the ls of a few directories:
>$ time ls
>all  xabc-db  xabc-dc1  xabc-gluster  xabc-mail  xabc-otp  xabc-smtp
>real    0m5.766s
>user    0m0.001s
>sys     0m0.003s
>it receives 56kB and sends 2.3 MB for a simple ls.
>This is weird isn't it? Why this huge upload?
>Changing these options mentioned here doesn't make any difference:
>Anyone a hint? Or should I drop GFS? This is unusable IMHO.
>richard lucassen
>Gluster-users mailing list
>Gluster-users at gluster.org

Sent from my Android device with K-9 Mail. Please excuse my brevity.
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