Monitoring more than one cluster

[Kevin Lewandowski]

Hi, I've got MMM v1.2.3 running fine and monitoring one cluster (two
servers in a MM pair). Now I want to bring a second cluster online,
but can't find any information on the configuration syntax to do this.

From reading the docs it looks like I need to create a mmm_mon_CX.conf
file for each cluster. I'm just guessing what needs to go in there and
haven't got it right yet. Is this documented somewhere?

thanks,
Kevin

[Walter Heck]

Hey Kevin,

That is not documented anywhere I have found. Your best bet is probably crawl through the monitor's source. Although it is not the nicest code, it is pretty readable, even for a perl n00b like myself.

good luck,

Walter

--
Walter Heck, Engineer @ Open Query (http://openquery.com)
Affordable Training and ProActive Support for MySQL & related technologies

Follow our blog at http://openquery.com/blog/
OurDelta: free enhanced builds for MySQL @ http://ourdelta.org

[Baron Schwartz]

Kevin,

Multi-cluster support is sort of mentioned in the docs here:

http://code.google.com/p/mysql-master-master/wiki/HowToUse

Notice the mention of config file here:

# mmm_control @C1 show
Config file: mmm_mon_C1.conf

Kevin, it would be great if you would add some information to the
wiki. I think it wouldn't be a bad thing if it had its own wiki page.
I've added you to the project with commit rights. This lets you edit
the wiki too, I believe.

Regards
Baron

[Ryan Lowe]

Hey Kevin,

If your first cluster is C1 (mmm_mon_C1.conf) You can just create mmm_mon_C2.conf with the information for cluster 2 ... make sure to update mmm_angel.conf to include monitoring for @C2 and change the ports in C2.conf so they don't conflict with C1 .

-- Ryan Lowe

[Walter Heck]

Hey Baron, all,

On Mon, Jul 27, 2009 at 22:42, Baron Schwartz <baron.s...@gmail.com> wrote:

http://code.google.com/p/mysql-master-master/wiki/HowToUse

The wiki has a new place since a while: http://mysql-mmm.org/
 

Kevin, it would be great if you would add some information to the
wiki.  I think it wouldn't be a bad thing if it had its own wiki page.
 I've added you to the project with commit rights.  This lets you edit
the wiki too, I believe.

On teh above note, maybe we should remove the google code wiki or redirect it to the "official" mysql-mmm site as to make sure there will be no confusion..
 

Walter

[Scott]

I'm confused, Pascal mentioned the he had registered mysql-mmm.org but
there was some question as to whether there was going to be some
problem with Mysql and trademarks. So now, all of a sudden, that's
the definitive home page for MMM even though there was no discussion
in the group. Is this another decision made between Open Query and
Percona done behind the scenes?

I don't have a problem with having a decent home page but we now have
google groups, google code, mysql-mmm.org, kovyrin.net/mysql-master-
master-replication-manager and launchpad. That's 5 different sites
with bits and pieces of information scattered all over the place.
Yes, mysql-mmm.org has better documentation then google code but how
is anyone supposed to find mysql-mmm.org if they don't read the
group? And what's gained by fracturing this project into so many
different web sites? It's already small enough as it is.

Example, the lastest 1.x release is 1.2.5 which is only on google
code, the one on launchpad is 1.2.3. The latest 2.x release is 2.0.9
on launchpad but it's 2.0.3 on google code. Am I the only one
wondering what's going on here?

Scott

On Jul 27, 10:47 pm, Walter Heck <walterh...@gmail.com> wrote:
> Hey Baron, all,
>

> On Mon, Jul 27, 2009 at 22:42, Baron Schwartz <baron.schwa...@gmail.com>wrote:
>
> >http://code.google.com/p/mysql-master-master/wiki/HowToUse
>
> The wiki has a new place since a while:http://mysql-mmm.org/
>
> > Kevin, it would be great if you would add some information to the
> > wiki.  I think it wouldn't be a bad thing if it had its own wiki page.
> >  I've added you to the project with commit rights.  This lets you edit
> > the wiki too, I believe.
>
> On teh above note, maybe we should remove the google code wiki or redirect
> it to the "official" mysql-mmm site as to make sure there will be no
> confusion..
>
> Walter
>
> --
> Walter Heck, Engineer @ Open Query (http://openquery.com)
> Affordable Training and ProActive Support for MySQL & related technologies
>

> Follow our blog athttp://openquery.com/blog/

[Walter Heck]

Hi Scott, all,

On Tue, Jul 28, 2009 at 17:51, Scott <scott.br@gmail.com> wrote:

I'm confused, Pascal mentioned the he had registered mysql-mmm.org but
there was some question as to whether there was going to be some
problem with Mysql and trademarks.  So now, all of a sudden, that's
the definitive home page for MMM even though there was no discussion
in the group.  Is this another decision made between Open Query and
Percona done behind the scenes?

No, Pascal registered that page and I gathered from teh discussion here that we, being Pascal and OQ with (what I thought) support from Percona, moved to launchpad and mysql-mmm.org. All of that was either discussed here or on #mmm or privately, i'm not sure.
The discussion here on that domain ended with (as i recall from memory) the fact that it would be alright, as long as we weren't using the domain to hurt mysql AB (or Sun/Oracle/whatever :) ).
 

I don't have a problem with having a decent home page but we now have
google groups, google code, mysql-mmm.org, kovyrin.net/mysql-master-
master-replication-manager and launchpad.  That's 5 different sites
with bits and pieces of information scattered all over the place.

That's a big mess, you are absolutely right.
 

Yes, mysql-mmm.org has better documentation then google code but how
is anyone supposed to find mysql-mmm.org if they don't read the
group?  And what's gained by fracturing this project into so many
different web sites?  It's already small enough as it is.

The idea of the (apparently) half-done move was to make it easier for people to collaborate, as anyone can upload branches on launchpad and edit the wiki on the mysql-mmm.org site. That would put the google code thing in deprecated state, except for this list that seems to be continued in use. That should imho also be moved to launchpad, but the fact is that most subscribers are here on this list.
 

Example, the lastest 1.x release is 1.2.5 which is only on google
code, the one on launchpad is 1.2.3.  The latest 2.x release is 2.0.9
on launchpad but it's 2.0.3 on google code.  Am I the only one
wondering what's going on here?

I was not aware of a 1.2.5 :(

This is a bit of a mess. What should we do here?
My vote would be to remove all code and downloads from google code project, and remove all content from the code wiki and just have empty redirects to mysql-mmm.org.
The code shoudl then also only be maintained in launchpad. I thought we already agreed upon that, but apparently I was wrong :)

Let's clean up this mess :)

Cheers,

Walter

--
Walter Heck, Engineer @ Open Query (http://openquery.com)
Affordable Training and ProActive Support for MySQL & related technologies

Follow our blog at http://openquery.com/blog/