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Monitoring MongoDB using Oracle Enterprise Manager Cloud Control

Scott Wardrop from AIDEV told me that they produced a plugin for Oracle Enterprise Manager Cloud Control 12c to monitor MongoDB. We use MongoDB in our production systems, so I decided to examine the plugin and write a blog post about it. Unfortunately version of our MongoDB databases are too old (2.4.x series) so the plugin didn’t work. Of course, it didn’t stop me. We created a simple MongoDB Cluster environment to test the MongoDB plugin for EM12c.

Becasue the installation is well documented by the vendor, I will not give a step by step installation guide. You can find the installation document on the download page. By the way, you need to manually download and deploy the plugin using EMCLI. Before you start deployment, send an email to info@aidev.uk for the unlock password (of the zip file). After you receive the password, download the latest plugin zip file, unzip it and run EMCLI:

After the installation is done, you need to deploy it to the OMS, and to the agents running on MongoDB servers.

mongoagent

Before you add the MongoDB targets using “Add Targets Declaratively by Specifying Target Monitoring Properties”, you also need to make some preparation on target MongoDB database and server. First you need to create a “monitoring” user. Login to target MongoDB database and run the following scripts:

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If EMD_MAINTENANCE.DISABLE_EM_DBMS_JOBS Hangs When Deconfiguring Plug-In from Management Repository

Today, I tried to remove a plugin from Management Server but I see that undeployment process was hung at step 5:

I connected to Management Repository and see if there’s any waiting process. Unfortunately there was nothing. So I started to examine “active” processes of SYS user. You may know that EM12c uses SYS user when deploying or undeploying agent software. I found a process working for minutes, trying to complete the following commmand:

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Oracle Enterprise Manager Cloud Control 12c Release 5 (12.1.0.5) is Ready to Download

Enterprise Manager Cloud Control 12c Release 5 is avaliable to download. The new release is designed to monitor and manage both your on-premise and Oracle Cloud deployments which is called “Hybrid Cloud” by Oracle. You can deploy Management Agents onto the Oracle Cloud virtual hosts to manage Oracle Cloud targets just as you would any other targets. EM12c R5 also supports data cloning between on-premise and Oracle Cloud. Integration with Oracle Enterprise Manager Ops Center will help dynamic on-demand resource provisioning.

I’m planning to upgrade our EM12c Release 4 to Release 5 in a couple of days, and discover the new features. Maybe I may write a couple of blog posts about upgrading or installing the new release.

EM12cR5

As you may know, EM12c R5 was announced a couple of days ago, so I was regularly checking the download page, and noticed that EM12c never gets old, it is always NEW :)

EM12c: Metric Extensions Adapters

It’s for sure that Metric Extensions provide great flexibility to define your own metrics and enhance the monitoring abilities of Oracle Enterprise Manager Cloud Control. There are different adapters for different target types. You can see the available adapters when you pick a target at the “create new metric extension” page.

adapters

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Oracle Enterprise Manager EMCLI on Mac OS X

EMCLI is not certified or supported on Mac OS X, but I wondered if it is possible to run on my new macbook. I searched metalink, googled and couldn’t found any useful information. I thought it should be easy because EMCLI is a java application certified to run almost all enterprise operating systems including HP-UX, AIX, Linux, Windows, Solaris, and we all remember “write once, run everywhere” slogan of Java. Unfortunately it wasn’t as easy as I expected :)

I have downloaded emclikit.jar from my Enterprise Manager web console, and tried to install it. Here’s the output:

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