Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-30 Thread Prabhu Ramachandran
On 01/31/09 09:44, Keith Freedman wrote: >> Well, I can see a couple of cases where it would be expedient to >> change the configuration. Lets say one of the machines losses a disk >> and the machine won't be fixed for a week say. Then, once the machine >> comes back up, I could use a differen

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-30 Thread Keith Freedman
>>so there should be no need to change your configuratoin, unless you >>hate seeing all the connection down messages in your logfile. > >Well, I can see a couple of cases where it would be expedient to >change the configuration. Lets say one of the machines losses a >disk and the machine won't

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-30 Thread Prabhu Ramachandran
On 01/28/09 01:36, Keith Freedman wrote: > At 09:32 AM 1/27/2009, Prabhu Ramachandran wrote: >> On 01/27/09 02:21, Keith Freedman wrote: >>> At 10:36 AM 1/26/2009, Prabhu Ramachandran wrote: >>> I dont see any problems with your config. >>> other than, if your network connection is very sporadic, t

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-27 Thread Keith Freedman
At 09:32 AM 1/27/2009, Prabhu Ramachandran wrote: >On 01/27/09 02:21, Keith Freedman wrote: >>At 10:36 AM 1/26/2009, Prabhu Ramachandran wrote: >>I dont see any problems with your config. >>other than, if your network connection is very sporadic, then >>you'll be caught often by waiting for timeou

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-27 Thread Prabhu Ramachandran
On 01/27/09 02:21, Keith Freedman wrote: > At 10:36 AM 1/26/2009, Prabhu Ramachandran wrote: >> Are you saying I can't use the local files on machine A (even if I am >> not touching any files on B) when the network is down even though all I >> am doing is reading and perhaps writing locally on A?

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-26 Thread Keith Freedman
At 10:36 AM 1/26/2009, Prabhu Ramachandran wrote: > > Here, if the network connection fails and is back up in short periods of > > time you'll alway be experiencing delays as gluster is often waiting for > > timeouts, then the server is visible again, it auto-heals, then it's not > > visible and it

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-26 Thread Prabhu Ramachandran
Hi Keith, Thanks for the detailed response. On 01/26/09 15:31, Keith Freedman wrote: > At 09:12 AM 1/25/2009, Prabhu Ramachandran wrote: >> With glusterfs I used unify for the 4 partitions on each machine and >> then afr'd the two unified disks but was told that this is not a >> reliable way of d

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-26 Thread Keith Freedman
At 09:12 AM 1/25/2009, Prabhu Ramachandran wrote: >Just to second that I'd really appreciate this too. I've been trying to >setup a couple of machines on a not-too-reliable 100Mbs network with a >set of partitions each, mirror the same data. Thus far I've been >managing this with scripts that do

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-25 Thread Prabhu Ramachandran
Keith Freedman wrote: > I just wanted to toss out a thought I had to get it on the table. > > For me, the replication features (in any filesystem that supports it) > serve several purposes > > 1, is to have 2 or more copies of the data which are live and useable > (I think lustre doesn't offer

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-19 Thread Keith Freedman
At 12:42 AM 1/18/2009, Krishna Srinivas wrote: >Keith, > >We had discussion about a translator with functionality similar to >what you have described. We termed it as "backup" translator. i.e a >translator which does delayed replication. This gives a better >response for the application. We can mak

Re: [Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

2009-01-18 Thread Krishna Srinivas
Keith, We had discussion about a translator with functionality similar to what you have described. We termed it as "backup" translator. i.e a translator which does delayed replication. This gives a better response for the application. We can make a lot of assumptions like the backup directory will