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Wily Introscope Manager Heap size issue

Jul 07, 2017 at 07:07 AM


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Dear experts

We are facing a problem getting error saying OutOfMemoryError thrown by JVM in Wily Introscope 9.1 of Solution Manager 7.1 SP12 (Linux/Oracle)

I am aware that "If a computation requires more heap than can be made available by the automatic storage management system, the Java Virtual Machine throws an OutOfMemoryError."

The required memory for Wily is 1GB per 10 Introscope Agents

The -Xmx and -Xms are set for 13312m each which covers for all Introscope agents in the solution manager 7.1.

We also, deleted some of managed systems that were not used anymore to test whether the size of heap decreases.

However, there were no change in size of heap of Wily Introscope...

Any idea where should check on why the heap size would not decrease and still throws exception of OutOfMemory, when the set fixed size between -Xms and -Xmx are covering the requirements

Any idea or correction would help...

Thank you

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1 Answer

Yogesh Patel
Jul 13, 2017 at 03:29 PM


Can you please use EM Perflog Analyzer Tool


You can look in to SAP Note : 2156320 - EM Perflog Analyzer Tool

This tool will give you an idea about where to look.

Let me know if any additional help required.



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Hello ,Yogesh

Thank you for reply.

I was confused with the agents of Introscope...

In the Investigator tab of Wily, i see 80 servers with process name = ‘SAP HostAgent Process’ and agent name ‘SAP HostAgent <SMDAgent_instancename>’ for all servers except Solution Manager has another process name additionally.

In installation guide of Introscope version 9 Installation it says to set 1GB of heap size per 10 Intrsocope Agent. Thus I thought 80 agents means above 8GB heap would be enough.

But it also says "The host adapter generates less load on the Enterprise Manager than a normal agent. For this reason, it should not be included with the same weight in the memory sizing calculation above. The host adapter is configured automatically by the managed system setup"

I do not have that many Java systems (that would need Introscope Agents) mostly ABAP systems that use SMDAgent only with wily.

In this case, how do I calculate the heap size for Wily besides using additional tool(my company prohibits for now installing additional tools)? The installation guide does not mention anything on heap size for Host-level Introscope Agent

Sorry for unsummarized text...

Munkhzaya Baasandorj

If you install tool I suggested that will show you memory is short or not.


Mr Yogesh.

Are you aware of what does, "Custom Metric Host" in Investigator tab of Wily WebView mean?

What is the difference of agents under this "Custom Metric Host" tab and agents that are shown respectively not under this tab?

Thank you always