Hi Richard,
this is something on my to-do list. I really would like to have a
"hostname" or "gname" (or whatever) property in the host XML that can
be set via the config file. That way you can:
a) name the hosts as you like
b) help situations like yours
If only time permits ... Patches are welcome :-)
Cheers
Martin
--- [EMAIL PROTECTED] wrote:
> I run gmond predominently on windows hosts that mostly have
> 2 NICs. While many hosts have NIC teaming, many hosts do not,
> and sometimes (semi-randomly) the src address for UDP data will
> flick from one host IP to the other.
>
> The effect of course on gmond and thence gmetad is that you get
> 2 XML entries for the host, 1 with the new IP, and with the old IP
> which does not get updated, and will eventually be reported as down.
> Depending on which XML entry comes last, one either does not notice
> this,
> or you get erroneous host down statuses.
>
> So what is the best thing to do about this?
>
> The pertinent code snippet in gmond.c is:
>
> static Ganglia_host *
> Ganglia_host_get( char *remoteip, apr_sockaddr_t *sa, Ganglia_message
> *fullmsg)
> {
> apr_status_t status;
> apr_pool_t *pool;
> Ganglia_host *hostdata;
> char *hostname = NULL;
>
> if(!remoteip || !sa || !fullmsg)
> {
> return NULL;
> }
>
> hostdata = (Ganglia_host *)apr_hash_get( hosts, remoteip,
> APR_HASH_KEY_STRING );
> if(!hostdata)
> {
> /* Lookup the hostname or use the proxy information if
> available
> */
> if( !hostname )
> ...
>
> The hosts structure being keyed from the remoteip causes the problem.
> Perhaps
> if I keyed this hash with a hostname, and had a separate hash to
> optimise the
> ip -> hostname mapping, perhaps that will do?
>
> I would appreciate guidance.
>
> thanks,
> Richard
>
>
>
------------------------------------------------------------------------
> For more information about Barclays Capital, please
> visit our web site at http://www.barcap.com.
>
>
> Internet communications are not secure and therefore the Barclays
> Group does not accept legal responsibility for the contents of this
> message. Although the Barclays Group operates anti-virus programmes,
>
> it does not accept responsibility for any damage whatsoever that is
> caused by viruses being passed. Any views or opinions presented are
> solely those of the author and do not necessarily represent those of
> the
> Barclays Group. Replies to this email may be monitored by the
> Barclays
> Group for operational or business reasons.
>
>
------------------------------------------------------------------------
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting
> language
> that extends applications into web and mobile media. Attend the live
> webcast
> and join the prime developer group breaking into this new coding
> territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
> _______________________________________________
> Ganglia-developers mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ganglia-developers
>
>
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
