Hello @Solkren
I have been testing some of the RC with Redis as well…fingers crossed.
RE: the level 3 satellites.
Those satellites are within private networks and it is not possible to have all the clients in those private networks talking directly back to level 2…that is why the level 3 zone count is so wide (~52). If there are other thoughts, I am all for it.
BR,
Eric
To All:
Just curious if anyone has any more feedback or experiences now that 2.12.0-1 is released.
Hello Dmitriy, thanks for sharing this. Can you advise how to configure the 5000 events per sec in the system? Many thanks.
Regards,
Xueyi
Still, could you please guide me on how to measure the number of events per second?
Hello, sorry for the late reply
based on my environment here some math:
- 50 dummy service checks with 1min frequency
- 1 random service check with 5min frequency
- 1 dummy host check with 5min frequency
Each Agent Endpoint have 1000 Host objects configured on it.
50(dummy checks) / 60(sec) = 0.8333 checks per sec
(1 (random check) + 1(host check) ) / 300(sec) = 0,006 checks per sec
0.8333 + 0,006 = 0,8349 checks per sec
1 Host with 52 checks generates 0,8349 checks per sec
100 hosts * 0,8349 = 83,49 checks per sec
1000 hosts * 0,8349 = 834,9 checks per sec
10 000 hosts * 0,8349 = 8349 checks per sec
100 000 hosts * 0,8349 = 83490 checks per sec
Hope it helps you with your cluster configuration
With best regards,
Dmitriy.
Hi - I have been following this thread since we have a large environment and ran into IDO backend bottleneck. We just tried icinga2 2.13.2 together with icingadb 1.0 rc2. Some good news to share - in our dev environment we see ~700x less updates to icingadb database then old IDO database, which makes perfect sense since icingadb only keeps track of state changes and has an extra cache layer(redis).
My only concern/question now, is if same thing(to only report state changes) can be done to the communication between satellites and masters, when ido is disabled. That way icinga will be much more scalable when using icingadb.
I haven’t seen any options for it as of now, i would like to see this feature as well.
From my recent tests with icingadb - it sync data much faster, but still lacks with a lot of performance options for it, right now in the large environment icingadb service just starts to hang and stops sync of objects at some point of time.
ok i understand it’s not supported/recommended to have satellites write to the central IDO backend, but it does sound attractive. we’re running 38000 hosts, 280000 services (mostly 5min, avg 8 services/host); ha master zone, 24 ha satellite zones. but have a question for @Solkren - how do API calls work if IDO is disabled on masters? we create/remove downtimes for groups of hosts/services (sometimes in the 100s) by sending API calls to the primary master host. we also use the api for the icingaweb commandtransport.ini and the web connects to the IDO in resources.ini. in addition we sometimes move hosts around the satellite zones to distribute load among them.
With Icinga Camp coming up in a few weeks, lets put together a few questions we can ask the authors of Icingadb to get these kind of things a bit clearer.
We already have similar install with 35k hosts in prod and API calls works as usual, everything is still connected, technically satellites still send all messages to masters and masters just drop IDO messages because don’t have IDO configured, when satellite accept messages from agents it process message queue (sends data to IDO) and forward all those messages to the master.
Moving hosts from 1 satellite to another not a problem as well, icinga ido database logic identify host as hostname + instance_id (instance_name option in /etc/icing2/features-available/ido-mysql.conf), so it does not cause duplicates.
The only problem i’ve seen so far - adding new checks. Adding a lot of objects across several satellites cause them all to make table locks to add new objects in database, during this lock other satellites got to wait and reconnect, so config distribution could take a lot of time
Example: you have 30k+ hosts configured in the same way, you add 1 check to service set which cause to spawn of 30k new objects at once.
Good afternoon Dimitriy after doing the math I currently have 36k hosts, 2 Masters 3 satellites, I intend to increase to 60k hosts, and from what I saw the most they tried was up to 35k hosts in which we have already exceeded that limit. My question is, is there a possibility to make this increase in hosts? have i noticed that one of the problems it could cause would be the registry entry for the correct database? Making the calculation you put here, at the moment I have 1320 checks per second and I will have 2200 per second, at this moment we have 400k active services, we will pass up to 660k active, remembering that the checks are done every 5 min. Thanks for listening