[Gluster-users] Limit in number of bricks?

["Hartmut Wöhrle"]

Hello list-members

I discovered gluster last month and installed it in our environment.

The first test was successfull (1 striped volume with 3 bricks) and I use it since 3 weeks -
works fine.
Now I installed a second volume (striped with 9 bricks) and this also works fine.
The next try was a striped volume with 15 bricks - and this one failed.
After search at this mailing list and documentation I didn't find any answer (logs and
responses are OK, peers connected, responses 0)
So now I did the following tests:

5 bricks stripe 5
gluster volume create big-stripe stripe 5 transport tcp server1:/mount server2:/mount
server3:/mount server4:/mount server5:/mount
- works fine

10 bricks stripe 5
gluster volume create big-stripe stripe 5 transport tcp server1:/mount server2:/mount
server3:/mount server4:/mount server5:/mount server6:/mount server7:/mount server8:/mount
server9:/mount server10:/mount
- works fine

15 bricks stripe 5
gluster volume create big-stripe stripe 5 transport tcp server1:/mount server2:/mount
server3:/mount server4:/mount server5:/mount server6:/mount server7:/mount server8:/mount
server9:/mount server10:/mount server11:/mount server12:/mount server13:/mount
server14:/mount server15:/mount
- does not work

I also tried
12 bricks stripe 3
gluster volume create big-stripe stripe 3 transport tcp server1:/mount server2:/mount
server3:/mount server4:/mount server5:/mount server6:/mount server7:/mount server8:/mount
server9:/mount server10:/mount server11:/mount server12:/mount
- works fine

15 bricks stripe 5
gluster volume create big-stripe stripe 3 transport tcp server1:/mount server2:/mount
server3:/mount server4:/mount server5:/mount server6:/mount server7:/mount server8:/mount
server9:/mount server10:/mount server11:/mount server12:/mount server13:/mount
server14:/mount server15:/mount
- does not work


So is there a limit that prevents creating volumes with # of bricks > 12?

CU
Hartmut