Re: Mutiple network port for a single osd

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On Wed, Mar 6, 2013 at 11:27 AM, Alex Sla <4k3nd0@xxxxxxxxx> wrote:
> Hello guys,
>
> first of all, thank you for Ceph. Such an amazon technology. Great
> pleasure to work with.
>
> Then to my question. I review Ceph in scope of security and need to
> understand how the single osd is create network port (for iptables).

The osd binds to the first available port in the range 6800-7100.  You
can adjust the range with the config options ms_bind_port_min and
ms_bind_port_max.
-sam

> But i just saw some interesting thing:
>
> Some of my osds running on more then one port.
>
> for example:
>
> Ports:
>
> tcp        0      0 172.20.21.2:6902        0.0.0.0:*
> LISTEN      1635/ceph-osd
> tcp        0      0 172.20.21.2:6903        0.0.0.0:*
> LISTEN      1635/ceph-osd
> tcp        0      0 172.20.21.2:6904        0.0.0.0:*
> LISTEN      1635/ceph-osd
>
> ps aux|grep 1635
>
> root      1635  1.9  0.2 1239708 172556 ?      Ssl  Feb23 301:34
> /usr/bin/ceph-osd --cluster=ceph -i 1 -f
>
> But some doesn't have this much ports. Why do this happen ? More
> important to know, up to how many port will be used? In overall it
> looks only 3.

Its unclear what you're asking...
>
>
> so far
> 4k3nd0
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