Monitoring two JVM in the same machine

[pgaete]

Hi all,

I need monitoring two JVM in the same machine.
Any ideas?

Regards,

[Atsushi]

Does it mean to monitor using JMX?
I think that you should set to connect using another port number.

[pgaete]

I´m configured one host with two JMX interface (ports 3333 and 3334), but the Template App Generic Java JMX monitoring only one interface, not both at the same time

[Atsushi]

In the current version of Zabbix, even if you can register multiple JMX interfaces, linking JMX monitoring items from a template will only be handled by one JMX interface. I think it is necessary to register and monitor as multiple hosts on Zabbix.

--- added
ZBXNEXT-1490 : Unable to use same item key with multiple interfaces

https://support.zabbix.com/browse/ZBXNEXT-1490

[BigSmooth]

It is currently not possible to tell the template which interface to use. It could be a great addition to Zabbix as, for example, monitoring Alfresco which can run several JVMs (4 in my case).

[cyber]

You cannot specify in template which interface to use. It will use first suitable one. And you also still cannot use same template several times for one host, even if you have several interfaces...

[BigSmooth]

You cannot specify in template which interface to use. It will use first suitable one. And you also still cannot use same template several times for one host, even if you have several interfaces...

I don't want to use two times same template, but two (or more) templates that uses JMX (for example: Apache Tomcat by JMX and Apache ActiveMQ by JMX). Unfortunately, it is not possible to use several JMX interfaces.
I will go for the "fake" host option.

[cyber]

If you have multiple interfaces, then in items config (already on host level) you can change used interface. If all items are same type you can also use "Mass update" to change it.
If those templates have items with identical keys (issues with assigning template to host), then at least for jmx it seems to work, if you change the keys a liiiiiitle bit like this...

jmx["java.lang:type=Memory","HeapMemoryUsage.used"]
jmx[ "java.lang:type=Memory","HeapMemoryUsage.used"]
jmx[  "java.lang:type=Memory","HeapMemoryUsage.used"]

Notice those couple spaces? Key becomes unique... but it works just as intended.

[BigSmooth]

Perfect cyber
I missed that option at item level.
Thank you very much !

[BigSmooth]

It does not seems possible to update discovered items individually (blocked field), so I updated the discovery rules. But even after running them, it is not reflecting change in item.
Mass update of items prototypes is required (and seems possible).
There is room for improvments in that area.

[Gloomeye]

For servers with multiple jmx roles, I applied the following method:

1) I created 4 different JMX interfaces for 4 different Apache Tomcat installations and 4 different published ports on the same host.
2) I copied the Apache Tomcat by JMX template with a different name for each Tomcat.

3) I defined the description as Port2/Port3/Port4 in the key fields using jmx for each template. (For example: jmx["Catalina:type=Server",serverInfo,Port4]) I did this in all Item, Discovery Rules, Item Prototypes, and Graph Prototypes Name fields.
However, this did not ensure that the newly created templates would select the correct JMX interface.

4) To select the correct JMX interface, I selected the correct JMX interface from the host interface combo box on the host. I did this in all Item, Discovery Rules, and Item Prototypes key fields.
In this way, I could use 4 different Tomcat templates on a single host.