On Thu, Nov 20, 2008 at 9:01 PM, Aleynikov, Serge <Serge.Aleynikov at gs.com>wrote: > I built it from glusterfs-1.3.12.tag.gz source. > my replies in previous mail hold good. > ------------------------------ > *From:* basavanagowda at gmail.com [mailto:basavanagowda at gmail.com] *On > Behalf Of *Basavanagowda Kanur > *Sent:* Wednesday, November 19, 2008 10:50 PM > *To:* Aleynikov, Serge > *Cc:* gluster-users at gluster.org > *Subject:* Re: Gluster setup question > > Serge, > I am assuming you are not using source code from repository. > If you are using source code directly from repository, then answers below > might not hold good. Please mention the version, if you are using from > source repository. > > On Thu, Nov 20, 2008 at 6:13 AM, Aleynikov, Serge <Serge.Aleynikov at gs.com>wrote: > >> Hi, >> >> I am running several clients writing to local disk that are setup to >> replicate data to N glusterfs server processes that use NFS for storing this >> data. I have the following questions: >> >> 1. Does every write of a process to a local directory managed by glusterfs >> client involve syncronous replication of data to glusterfs server? >> > yes. it involves synchronous replication. > > glusterfs--mailine--3.0--patch-621 (onwards) in our source repository has > an AFR feature called quick-unwind, which would make replication > asychronous. > > 2. Is it possible that if NFS is slow on the glusterfs server side, then >> writing to local disk of a process on the glusterfs client's machine would >> block? >> > yes. fops on glusterfs will block. > >> Thanks. >> >> Serge >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users >> >> > > > -- > gowda > > -- gowda -------------- next part -------------- An HTML attachment was scrubbed... URL: http://zresearch.com/pipermail/gluster-users/attachments/20081120/bce669c1/attachment-0001.htm
