From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory Farnum Subject: Re: load-gen from an osd node Date: Fri, 10 Jul 2015 11:25:15 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from mail-ie0-f175.google.com ([209.85.223.175]:35904 "EHLO mail-ie0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753334AbbGJKZR (ORCPT ); Fri, 10 Jul 2015 06:25:17 -0400 Received: by iecvh10 with SMTP id vh10so193882872iec.3 for ; Fri, 10 Jul 2015 03:25:16 -0700 (PDT) Received: from mail-ie0-f170.google.com (mail-ie0-f170.google.com. [209.85.223.170]) by smtp.gmail.com with ESMTPSA id j2sm6181264ioo.43.2015.07.10.03.25.16 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 10 Jul 2015 03:25:16 -0700 (PDT) Received: by iebmu5 with SMTP id mu5so193087268ieb.1 for ; Fri, 10 Jul 2015 03:25:15 -0700 (PDT) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "Deneau, Tom" Cc: ceph-devel On Wed, Jul 8, 2015 at 5:17 PM, Deneau, Tom wrote: > 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. Can you create a ticket on the tracker describing this issue? That's the kind of thing we'll want to fix. ;) -Greg > > -- Tom Deneau > > >> -----Original Message----- >> From: Gregory Farnum [mailto:greg@gregs42.com] >> 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 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 >> > -- >> > To unsubscribe from this list: send the line "unsubscribe ceph-devel" >> > in the body of a message to majordomo@vger.kernel.org More majordomo >> > info at http://vger.kernel.org/majordomo-info.html