With the newer rados, just running rados -p somepool load-gen, we get
preparing 200 objects
load-gen will run 60 seconds
1: throughput=0MB/sec pending data=0
2: throughput=0MB/sec pending data=0
3: throughput=0MB/sec pending data=0
4: throughput=0MB/sec pending data=0
5: throughput=0MB/sec pending data=0
6: throughput=0MB/sec pending data=0
But I see the change that caused this behavior was explicitly initializing lg.max_ops to 0.
Before this, max_ops was just whatever happened to be in memory.
So the newer load-gen works fine as long as you explicitly set --max-ops on the command line.
-- Tom Deneau
> -----Original Message-----
> From: Gregory Farnum [mailto:greg@xxxxxxxxxxx]
> Sent: Wednesday, July 01, 2015 11:05 AM
> To: Deneau, Tom
> Cc: ceph-devel
> Subject: Re: load-gen from an osd node
>
> Hmm, the only changes I see between those two versions are some pretty
> precise cleanups which shouldn't cause this. But it means that a bisect or
> determined look should be easy. Can you create a ticket which includes the
> exact output you're seeing and the exact versions you're running?
> -Greg
>
> On Mon, Jun 29, 2015 at 11:27 PM, Deneau, Tom <tom.deneau@xxxxxxx> wrote:
> > Oh, I just noticed that the client nodes I spoke of where load-gen
> > actually worked were running 0.94, not 9.0.1. And when I upgrade them to
> 9.0.1, load-gen no longer works.
> >
> > So more likely this is just a problem with newer rados load-gens
> >
> > -- Tom
> >
> >
> >
> >> -----Original Message-----
> >> From: Deneau, Tom
> >> Sent: Friday, June 26, 2015 7:48 PM
> >> To: ceph-devel
> >> Subject: load-gen from an osd node
> >>
> >> I am running 9.0.1 and I noticed when I run rados load-gen from one
> >> of the osd nodes, it creates the objects but then always reports a
> >> throughput of 0 MB/sec.
> >>
> >> But if I run it from a separate client node, it works fine.
> >> Why would this be?
> >>
> >> I'm not sure but I thought in earlier versions load-gen could be run
> >> from an osd node.
> >>
> >> -- Tom Deneau
> > --
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