[Linux-cluster] CCSD ipv6 bind failures

[Ashish G]

hi,
   If anyone knows answers of following questions please let me know.

Regards,
Ashish

On Wed, Dec 5, 2012 at 7:22 PM, Ashish G <ashish.ext123 at gmail.com> wrote:

> hi Experts,
>                I has few question on ccsd:
> 1. what is the purpose of ccsd listening on ipv4 and ipv6 addresses as
> follows in my 2 node HA setup? We do not use IPv6 in our setup.
>
> netstat -antp |grep ccsd
>
> tcp        0      0 0.0.0.0:50008               0.0.0.0:*
> LISTEN      18170/ccsd
>
> *tcp        0      0 ::1:50006
> :::*                        LISTEN      18170/ccsd*
>
>
> **
>
> *CCSD is invoked without any arguments:
> *
>
> *root     18170     1  0 14:12 ?        00:00:00 /sbin/ccsd*
>
> 2. Is it not sufficient to use IPv4 only by CCSD?
>
> 3. Sometimes on node reboot we see messages as follows:
>
> "Unable to bind to backend ipv6 socket, but inet_ntop returned NULL
> pointer: Address already in use"
> Does anyone know when is this problem seen?
>
> 4. If I invoke CCSD with "-4" option, will I get rid of the above message?
> since ipv6 code path will not hit.
>
> *root       461     1  0 14:28 ?        00:00:00 /sbin/ccsd -4*
>
> netstat -antp  |grep ccsd
>
> *tcp        0      0 127.0.0.1:50006             0.0.0.0:*
> LISTEN      461/ccsd*
>
> tcp        0      0 0.0.0.0:50008               0.0.0.0:*
> LISTEN      461/ccsd
>
>
> Regards,
> Ashish
>
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