-- Forwarded message --
From: Libin Wu
Date: 2015-12-08 9:12 GMT+08:00
Subject: Re: [ceph-users] poor performance when recovering
To: Oliver Dzombic
抄送： ceph-users
Yeah, we will upgrade in the near future. But i'm afraid the recovery
problem also existed in the hammer ve
Btw, my ceph version is 0.80.11
2015-12-07 21:45 GMT+08:00 Libin Wu :
> Hi, cephers
>
> I'm doing the performance test of ceph when recovering. The scene is simple:
> 1. run fio on 6 krbd device
> 2. stop one OSD for 10 seconds
> 3. start that OSD
>
> However, when th
Hi, cephers
I'm doing the performance test of ceph when recovering. The scene is simple:
1. run fio on 6 krbd device
2. stop one OSD for 10 seconds
3. start that OSD
However, when the OSD up and start recovering, the performance of fio
drop down from 9k to 1k for about 20 seconds. At the same tii
t; -
>> "hzwulibin"
>> ?2015-11-23 09:00
>> Sage Weil,Haomai Wang
>> ???ceph-devel
>> ???Re: why my cluster become unavailable
>>
>> Hi, Sage
>>
>> Thanks! Will try it wh
Hi, cepher
I have a cluster of 6 OSD server, every server has 8 OSDs.
I out 4 OSDs on every server, then my client io is blocking.
I reboot my client and then create a new rbd device, but the new
device also can't write io.
Yeah, i understand that some data may lost as threee replicas of some
o
Hi, all
As my understand, command "ceph daemon osd.x perf dump objecters" should
output the perf data of osdc(librados). But when i use this command,
why all those values are zero expcept map_epoch and map_inc. Follow is
the result(It has fio test with rbd ioengine on the cluster):
$ sudo ceph d
