Master / Slave(s) patch for Cacti 0.8.7b

Frizz · Post by **Frizz** » Fri Sep 12, 2008 4:40 pm

TheWitness wrote:I'm trying to free up some of my rare personal time these days, evident by my absence on the forums, to remove the fundamental issues that prevent us from doing the remote pollers.

I have given this topic so much thought, I need to do the development, so I can make some room in my brain for other things

TheWitness

Take all the time you need, to achieve this milestone in the Cacti architecture.
Let's have a talk about your ideas at the 3.CCC.eu (via Skype) at the 11.october 2008.
We're all very curious.
regards
-Frizz

Post by **TheWitness** » Sat Sep 13, 2008 8:30 am

Now that I have done some real large install's, I have found a dozen or so things that must change for the larger installs. Those changes should come first as they drive me absolutely nuts.

Larry

Post by **TheWitness** » Sat Sep 13, 2008 8:56 am

And Here they are, note quite a dozen, but again, they drive me nuts.

I have a few more to upload. I will have them uploaded in a minute.

Larry

Post by **TheWitness** » Sat Sep 13, 2008 9:09 am

Here are a few more. More likely Aggregate users get bombed with this one.

Larry

cigamit · Post by **cigamit** » Sat Sep 20, 2008 2:12 am

As far as the Multiple Poller, the single thing that needs to be fixed in Cacti, is we need to move from telling spine or cmd.php from using polling hosts 1-5 to a system that allows comma delimited hosts also. This way we could say 1-2,4-5 or 1,2,4,5 and have host 3 polled by a different process or poller.

Simple enough really, then my plugin would work without too much trouble. I have attached it, still needs lots of work (like an interface to manage the pollers) as I didn't see any point in finishing it without the above changes in Cacti being made first.

Post by **Linegod** » Sat Sep 20, 2008 8:58 am

cigamit wrote:move from telling spine or cmd.php from using polling hosts 1-5 to a system that allows comma delimited hosts also. This way we could say 1-2,4-5 or 1,2,4,5 and have host 3 polled by a different process or poller.

Was that on the roadmap, or not?

Post by **TheWitness** » Sat Sep 20, 2008 2:31 pm

My plan was to add a poller_id field to each host, and do it that way. That design is a bit dated, 4+ years ago.

TheWitness

cigamit · Post by **cigamit** » Sun Sep 21, 2008 9:05 pm

My plugin does use a poller_id, but moving to multi-range approach also allows a plugin to be built that can push larger hosts off to their own process, which is something we did discuss before I believe.

Post by **TheWitness** » Mon Sep 22, 2008 8:11 am

Ah, in 0.8.7c, I refer to this as process leveling I think. Need to update the documentation. However, it is controlled by host range again. We are just smarter about what that host range is though.

In hindsignt, we should be measuring performance of all the poller items and hosts to do this better though I think.

Larry

driden91 · Post by **driden91** » Mon Sep 29, 2008 9:29 am

hello

With this patch it's possible in exemple to have 300 hosts on the master and 300 hosts on the slave and see all hosts on one cacti interfaces ?

make a load-balancing in fact.

driden91 · Post by **driden91** » Mon Oct 06, 2008 9:17 am

hello

any idea ?

regards

Post by **TheWitness** » Mon Oct 06, 2008 7:09 pm

It would not be officially supported even if it did work.

TheWitness

driden91 · Post by **driden91** » Tue Oct 07, 2008 4:42 am

TheWitness wrote:It would not be officially supported even if it did work.

TheWitness

hello, thank for the reply.

So what solution exists to do this?

thank in advance

Post by **TheWitness** » Tue Oct 07, 2008 6:07 am

Before, I can start on any new features, the 0.8.7c release needs to be done.

TheWitness

Master / Slave(s) patch for Cacti 0.8.7b

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