[Gluster-users] HELP: problem of stripe expansion !!!!!!!!!!!!!!!!!!!!!!!!

[Anand Babu Periasamy]

You cannot expand stripe directly.  You have to use
distribute + stripe, where you scale in stripe sets.

For example, if you have 8 nodes, you create
=>  distribute(stripe(4)+stripe(4))
Now if you want to scale your storage cluster, you should do so
in stripe sets. Add 4 more nodes like this:
=>  distribute(stripe(4)+stripe(4)+stripe(4))

Distributed-stripe not only makes stripe scalable, but
better load balanced and reduced disk contention.
--
Anand Babu Periasamy
GPG Key ID: 0x62E15A31
Blog [http://unlocksmith.org]
GlusterFS [http://www.gluster.org]
GNU/Linux [http://www.gnu.org]


eagleeyes wrote:
> Hello:
>        Today i test stripe expansion : two volumes  expand four volumes 
> , when i vi or cat a file ,the log was :
> [2009-07-01 11:25:55] W [stripe.c:1920:stripe_open_getxattr_cbk] stripe: client8 returned error No such file or directory
> [2009-07-01 11:25:55] W [stripe.c:1920:stripe_open_getxattr_cbk] stripe: client7 returned error No such file or directory
> [2009-07-01 11:25:55] W [stripe.c:1871:stripe_open_cbk] stripe: client7 returned error No such file or directory
> [2009-07-01 11:25:55] W [stripe.c:1871:stripe_open_cbk] stripe: client8 returned error No such file or directory
> [2009-07-01 11:25:55] W [fuse-bridge.c:639:fuse_fd_cbk] glusterfs-fuse: 149: OPEN() /file => -1 (No such file or directory)
>  
> Did it a bug like dht expansion ?  What should we do to deal with this 
> problem?
>  
> my client configur changes is from subvolumes client5 client6  to 
> subvolumes client5 client6 client7 client8 
>  
>  
> 2009-07-01
> ------------------------------------------------------------------------
> eagleeyes
> 
> 
> ------------------------------------------------------------------------
> 
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