From: Wido den Hollander <wido@widodh.nl>
To: hemant surale <hemant.surale@gmail.com>
Cc: ceph-devel@vger.kernel.org
Subject: Re: Port no For data Transfer between OSDs
Date: Wed, 05 Sep 2012 15:04:46 +0200 [thread overview]
Message-ID: <50474DEE.6060304@widodh.nl> (raw)
In-Reply-To: <50473CA2.3050806@widodh.nl>
On 09/05/2012 01:50 PM, Wido den Hollander wrote:
> On 09/05/2012 01:20 PM, hemant surale wrote:
>> Hi Wido , Community ,
>>
>> if we use number =2
>> in cmd as follows
>> "ceph osd pool set <poolname> size <#no>"
>>
>> does it means for perticular Object we have 2 replica Or total 2
>> copies in cluster?
>>
>
> That will set replication to "2". That means, every object stored in the
> cluster will be stored twice.
>
Sorry, I have to correct myself there.
Every object in that (RADOS) POOL is stored twice, not the cluster. This
is a pool specific setting, not cluster-wide.
Wido
> It is NOT object + 2, no it's object * 2.
>
> Wido
>
>>
>> Regards,
>> Hemant Surale.
>>
>> On Wed, Sep 5, 2012 at 2:44 PM, Wido den Hollander <wido@widodh.nl>
>> wrote:
>>> On 09/05/2012 07:30 AM, hemant surale wrote:
>>>>
>>>> Hi Community ,
>>>> I want to trace the data transfer rates occurring between
>>>> osds while injecting data into ceph cluster. Can you please tell me
>>>> what ports should I monitor or keep track of?
>>>> Thanks !
>>>
>>>
>>> OSDs start binding from port 6800 and counting up from there.
>>>
>>> For example, a machine with 4 OSDs running:
>>>
>>> root@atom0:~# netstat -nap|grep LISTEN|grep -E ^tcp|grep ceph-osd
>>> tcp6 0 0 :::6800 :::* LISTEN
>>> 24329/ceph-osd
>>> tcp6 0 0 :::6801 :::* LISTEN
>>> 24329/ceph-osd
>>> tcp6 0 0 :::6802 :::* LISTEN
>>> 24329/ceph-osd
>>> tcp6 0 0 :::6803 :::* LISTEN
>>> 24596/ceph-osd
>>> tcp6 0 0 :::6804 :::* LISTEN
>>> 24596/ceph-osd
>>> tcp6 0 0 :::6805 :::* LISTEN
>>> 24596/ceph-osd
>>> tcp6 0 0 :::6806 :::* LISTEN
>>> 25316/ceph-osd
>>> tcp6 0 0 :::6807 :::* LISTEN
>>> 25316/ceph-osd
>>> tcp6 0 0 :::6808 :::* LISTEN
>>> 25316/ceph-osd
>>> tcp6 0 0 :::6809 :::* LISTEN
>>> 25839/ceph-osd
>>> tcp6 0 0 :::6810 :::* LISTEN
>>> 25839/ceph-osd
>>> tcp6 0 0 :::6811 :::* LISTEN
>>> 25839/ceph-osd
>>> root@atom0:~#
>>>
>>> Wido
>>>
>>>>
>>>> Regards,
>>>> Hemant Surale.
>>>> --
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>>>>
>>>
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>
prev parent reply other threads:[~2012-09-05 13:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-05 5:30 Port no For data Transfer between OSDs hemant surale
2012-09-05 9:14 ` Wido den Hollander
2012-09-05 11:20 ` hemant surale
2012-09-05 11:50 ` Wido den Hollander
2012-09-05 13:04 ` Wido den Hollander [this message]
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