Re: Ceph & Cinder & HA

2014-11-07 Thread David Moreau Simard
Loic, Was there an etherpad ? I'm curious as I didn't attend that one. HA with Cinder mostly revolves around setting up multiple cinder-api and cinder-volume servers. Was there something else involved ? I can probably contribute my knowledge on that.. -- David Moreau Simard > On Nov 6, 2014, a

Re: Ceph & Cinder & HA

2014-11-07 Thread Giulio Fidente
On 11/07/2014 09:46 AM, David Moreau Simard wrote: Loic, Was there an etherpad ? I'm curious as I didn't attend that one. HA with Cinder mostly revolves around setting up multiple cinder-api and cinder-volume servers. Was there something else involved ? I can probably contribute my knowledge o

Re: Ceph & Cinder & HA

2014-11-07 Thread David Moreau Simard
Giulio, Right. The volume part is tricky because the volume is ultimately tied to one cinder-volume instance. I don't have a magic solution for that yet. I'm not going to the contributor summit unfortunately. I'm not personally a fan of keepalived since I've been spoiled by corosync. Let's see

Re: Ceph & Cinder & HA

2014-11-07 Thread Giulio Fidente
On 11/07/2014 10:50 AM, David Moreau Simard wrote: Giulio, Right. The volume part is tricky because the volume is ultimately tied to one cinder-volume instance. I don't have a magic solution for that yet. yep but this can be worked around by customizing the host= setting in Cinder so all ins

Re: Ceph & Cinder & HA

2014-11-07 Thread Sebastien Han
How do you envision the HAProxy setup? I’m in the dev room, we can discuss that. HAProxy is a good idea but you need to be careful on how you monitor the ceph-mon. > On 07 Nov 2014, at 10:56, Giulio Fidente wrote: > > On 11/07/2014 10:50 AM, David Moreau Simard wrote: >> Giulio, >> >> Right.

Re: PG inconsistency

2014-11-07 Thread Sage Weil
On Thu, 6 Nov 2014, GuangYang wrote: > Hello Cephers, > Recently we observed a couple of inconsistencies in our Ceph cluster, > there were two major patterns leading to inconsistency as I observed: 1) > EIO to read the file, 2) the digest is inconsistent (for EC) even there > is no read error).

Re: Ιnstrumenting RADOS with Zipkin + LTTng

2014-11-07 Thread Sage Weil
Hi Andrew! On Thu, 30 Oct 2014, Andrew Shewmaker wrote: > Hi everyone, > > I'm Andrew, a new Ceph intern, and I'll be working to get Marios' > Zipkin + LTTng repo into a merge-able state, as Sam asked about > (http://www.spinics.net/lists/ceph-devel/msg20024.html). Awesome! > I've exchanged ema

Open source SPC-1 Workload IO Pattern

2014-11-07 Thread Luis Pabón
Hi guys, I created a simple test program to visualize the I/O pattern of NetApp’s open source spc-1 workload generator. SPC-1 is an enterprise OLTP type workload created by the Storage Performance Council (http://www.storageperformance.org/results). Some of the results are published and avail

Re: Open source SPC-1 Workload IO Pattern

2014-11-07 Thread Mark Nelson
On 11/07/2014 05:01 AM, Luis Pabón wrote: Hi guys, I created a simple test program to visualize the I/O pattern of NetApp’s open source spc-1 workload generator. SPC-1 is an enterprise OLTP type workload created by the Storage Performance Council (http://www.storageperformance.org/results). Some

Re: Open source SPC-1 Workload IO Pattern

2014-11-07 Thread Luis Pabon
> On Nov 7, 2014, at 1:53 PM, Mark Nelson wrote: > >> On 11/07/2014 05:01 AM, Luis Pabón wrote: >> Hi guys, >> I created a simple test program to visualize the I/O pattern of NetApp’s >> open source spc-1 workload generator. SPC-1 is an enterprise OLTP type >> workload created by the Storage

Re: Ιnstrumenting RADOS with Zipkin + LTTng

2014-11-07 Thread Mark Nelson
On 10/30/2014 01:49 PM, Andrew Shewmaker wrote: Hi everyone, I'm Andrew, a new Ceph intern, and I'll be working to get Marios' Zipkin + LTTng repo into a merge-able state, as Sam asked about (http://www.spinics.net/lists/ceph-devel/msg20024.html). I've exchanged email with Marios, and he is int

Re: [fuse-devel] [PATCH v5 7/7] add a flag for per-operation O_DSYNC semantics

2014-11-07 Thread Roger Willcocks
On Fri, 2014-11-07 at 08:43 +0200, Anton Altaparmakov wrote: > Hi, > > > On 7 Nov 2014, at 07:52, Anand Avati wrote: > > On Thu, Nov 6, 2014 at 8:22 PM, Anton Altaparmakov wrote: > > > On 7 Nov 2014, at 01:46, Jeff Moyer wrote: > > > Minor nit, but I'd rather read something that looks like thi

Re: Ιnstrumenting RADOS with Zipkin + LTTng

2014-11-07 Thread Matt W. Benjamin
Hi, Just wanted to say, Ali here has been experimenting with these as well, and, although I don't have any specifics yet, we'll contribute anything we come up with that looks helpful. Thanks all very much for the work, Matt - "Mark Nelson" wrote: > On 10/30/2014 01:49 PM, Andrew Shewmak

Re: Ιnstrumenting RADOS with Zipkin + LTTng

2014-11-07 Thread Andrew Shewmaker
On Fri, Nov 07, 2014 at 02:32:51AM -0800, Sage Weil wrote: > > On Thu, 30 Oct 2014, Andrew Shewmaker wrote: > > > > Should I put effort into adding a "--with-blkin" or "--with-zipkin" > > option to autoconf? > > Is it statically or dynamically linked? > > Probably a first step is to get it in t

Re: [fuse-devel] [PATCH v5 7/7] add a flag for per-operation O_DSYNC semantics

2014-11-07 Thread Milosz Tanski
On Fri, Nov 7, 2014 at 9:21 AM, Roger Willcocks wrote: > > On Fri, 2014-11-07 at 08:43 +0200, Anton Altaparmakov wrote: >> Hi, >> >> > On 7 Nov 2014, at 07:52, Anand Avati wrote: >> > On Thu, Nov 6, 2014 at 8:22 PM, Anton Altaparmakov wrote: >> > > On 7 Nov 2014, at 01:46, Jeff Moyer wrote: >>