Search found 103 matches

by oxo-oxo
Tue Aug 11, 2009 3:50 pm
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

As a side note ... Of course, if a high availability is needed now, one could have 2 cacti's polling the same data sources (for example, network devices). However, one would need to keep the 2 cacti's identical with the overhead that one would extra management work so as to have HA - ie click 2 plac...
by oxo-oxo
Tue Aug 11, 2009 10:16 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

The next step is "someone" creates a 2 cacti installation with circular mysql replication and continues to hack the poller.php code so there is a Proof of Concept
- unless someone says the idea is a waste of time ...
by oxo-oxo
Tue Aug 11, 2009 10:14 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

It is important to understand this post shows how to ensure that RRD data is available using only MySQL replication, and "something" that creates/updates RRD files on a machine that is not "active". That is, it does not create HA by using Cacti alone, but addresses how to ensure that all data is ava...
by oxo-oxo
Sun Aug 09, 2009 3:03 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

Some thoughts: install 2 identical cacti with fancy HA features - which algorithm deceides which one is primary (also coordinating with HA on the network card(s) ) primary fails -> secondary new primary -> old primary recovers to secondary role instead of taking over primary role. primary fails and ...
by oxo-oxo
Sat Aug 08, 2009 5:30 pm
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

Does anyone understand this ?
by oxo-oxo
Sat Aug 08, 2009 11:43 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

Index: poller.php =================================================================== --- poller.php (revision 5180) +++ poller.php (working copy) @@ -56,10 +56,14 @@ $debug = TRUE; break; - case "--force": + case "--force": $force = TRUE; break; + case "--rox": /* support for HA rrd creating from ...
by oxo-oxo
Sat Aug 08, 2009 11:42 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

A quick check of poller.php shows the first write : truncate - so the -r option needs to stop these. Also, identification of the last poller run in the mysql table should be done. /* retreive the last time the poller ran */ if ($poller_id == 0) { $poller_lastrun = read_config_option('poller_lastrun'...
by oxo-oxo
Sat Aug 08, 2009 7:50 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

Now, what is this "something" that creates/updates the rrdfiles ... Well, it must be some form of poller.php ( http://svn.cacti.net/viewvc/cacti/branches/main/poller.php?revision=5031&view=markup ) - but with an option --r<ead only mysql> On the primary, there is a poller.php running under cron, do ...
by oxo-oxo
Sat Aug 08, 2009 7:50 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

But then one begins to have doubts, maybe one needs a replication to a off site - no problem, add another server and create a slave replication of the primary/secondary server set: the slave also creates the rrd files locally without haveing to find out how to add filesystem sync of the main rrd fil...
by oxo-oxo
Sat Aug 08, 2009 7:49 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

OK, lets do a what if... If the first server is the "active" server, then it collects data update mysql and creates the local rrd files. The second server is the "passive" server, it just reads the mysql data and creates the local rrd files. This is a solution that does not require specific OS suppo...
by oxo-oxo
Sat Aug 08, 2009 7:45 am
Forum: Feature Requests
Topic: HA you've got to hide your data away
Replies: 12
Views: 6223

HA you've got to hide your data away

Let's do a thought experiment... A new Cacti user set's up a standard cacti solution on some hardware. The hardware is good, and the number of data elements is low. Everythings is working except for the nagging feeling of no HA. So, another piece of hardware is obtained, and is placed in another mac...
by oxo-oxo
Fri Jan 02, 2009 10:53 am
Forum: Feature Requests
Topic: rra paths
Replies: 3
Views: 4285

And happy new year to you as well :)

I'm still in "investigation" mode
- so let's give it a few days and think for a while.
by oxo-oxo
Mon Dec 29, 2008 12:59 pm
Forum: Help: General
Topic: SOLVED: db query execution timeof 55 sec in add_graphs.php
Replies: 22
Views: 18515

How much of the indexing work has come into cacti ...? - as in: is the previous post OK for the developers? I did a quick dig into cacti.sql and found a hit and a miss .... [email protected]:~/main> grep data_template_data_id cacti.sql data_template_data_id mediumint(8) unsigned NOT NULL default '0', PRIMARY...
by oxo-oxo
Mon Dec 29, 2008 12:53 pm
Forum: Feature Requests
Topic: rra paths
Replies: 3
Views: 4285

rra paths

Hmmm, just a small note.... I am running 2 machines with cacti (well actually 3*2 but never mind) One runs the poller, the other is the webserver/cacti interface - both use the same mysql server. A small (well big) irratation is that the path to the rra has to be the same on both machines. What does...
by oxo-oxo
Mon Dec 29, 2008 12:47 pm
Forum: Feature Requests
Topic: Automation - adding graphs
Replies: 10
Views: 18285

I'm trying to add_graphs and at the moment using outputs from snmptable ifIndex and ifxIndex to create a decision if I want to add the graph.