[ceph-users] Memory usage of librados

2013-12-25 Thread Potapov Sergey
Hi! I`am accessing to Ceph cluster via librados and found that memory usage (VSZ in ps) is extremely increases on writing/reading/removing objects. If I successively write+read+remove the object with the same name, then memory usage is not increased, but if I do the same operations with the dif

Re: [ceph-users] Upcoming Erasure coding

2013-12-25 Thread Wido den Hollander
On 12/24/2013 11:16 PM, Mark Kirkwood wrote: On 25/12/13 04:33, Loic Dachary wrote: On 24/12/2013 10:22, Wido den Hollander wrote: IIRC Erasure Encoding doesn't work well with RBD, if it even works at all due to the fact that you can't update a object, but you have to completely rewrite the

Re: [ceph-users] [RadosGW] Does your RadosGW capable to handle 500+ concurrency connections?

2013-12-25 Thread Kuo Hugo
Thanks Yehuda, hint of admin socket is useful. The problem was fixed. Cheers 2013/12/25 Yehuda Sadeh > On Tue, Dec 24, 2013 at 8:16 AM, Kuo Hugo wrote: > > Hi folks, > > > > After some more tests. I can not addressed the bottleneck currently. > Never > > hit CPU bound. > > > > > > OSD op t

[ceph-users] [RadosGW] FastCGI: comm with server "/var/www/s3gw.fcgi" aborted: read failed

2013-12-25 Thread Kuo Hugo
Hi folks, I'm in progress to tune the performance of RadosGW on my server. After some kindly helps from you guys. I figure out several problems for optimizing the RadosGW to handle higher concurrency requests from users. Apache optimization # radosgw open file # rgw thread pools # rgw_ops throttl

Re: [ceph-users] [RadosGW] FastCGI: comm with server "/var/www/s3gw.fcgi" aborted: read failed

2013-12-25 Thread Yehuda Sadeh
On Wed, Dec 25, 2013 at 9:12 AM, Kuo Hugo wrote: > Hi folks, > > I'm in progress to tune the performance of RadosGW on my server. After some > kindly helps from you guys. I figure out several problems for optimizing the > RadosGW to handle higher concurrency requests from users. > > Apache optimiz

Re: [ceph-users] Memory usage of librados

2013-12-25 Thread Sage Weil
On Wed, 25 Dec 2013, Potapov Sergey wrote: > Hi! > > I`am accessing to Ceph cluster via librados and found that memory usage > (VSZ in ps) is extremely increases on writing/reading/removing objects. > If I successively write+read+remove the object with the same name, then > memory usage is not

[ceph-users] compiling ceph

2013-12-25 Thread Keith Brown
Hello, I would like to compile ceph from scratch. I am reading these instructions: http://ceph.com/docs/master/install/build-ceph/ I was wondering if anyone has a blog/wiki/other documentation on how to compile these dependencies. And yes, I know there are RPMs available for Ceph but I want to le

[ceph-users] How can I set the warning level?

2013-12-25 Thread vernon1...@126.com
Hello, my Mon's always HEALTH_WARN, and I run ceph health detail, it show me like this: HEALTH_WARN mon.2 addr 192.168.0.7:6789/0 has 30% avail disk space -- low disk space! I want to know how to set this warning level? I have to made it give out the alarm with the space remaining no more than

[ceph-users] How to replace admin node

2013-12-25 Thread Umar Draz
HI I have a setup of 3 nodes, where 1 node running as admin + mon + osd, and the other two nodes as osd. Now question is what will happen if the first node die? then how I can add another node as admin? How we can replace admin node? Br. Umar ___ cep

Re: [ceph-users] compiling ceph

2013-12-25 Thread Loic Dachary
On 26/12/2013 01:29, Keith Brown wrote: > Hello, > > I would like to compile ceph from scratch. I am reading these instructions: > http://ceph.com/docs/master/install/build-ceph/ > > I was wondering if anyone has a blog/wiki/other documentation on how to > compile these dependencies. And yes,