Unable to Contact Data Aggregator

Document ID : KB000044137
Last Modified Date : 14/02/2018
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Issue: 

Unable to contact DataAggregator in CAPC User Console

 

Environment:  

IM 2.5

Linux 6.5

 

Cause: 

This is caused due to Memory Error. If you see this kind of below error from DA/apache-karaf Log.

java.lang.OutOfMemoryError: Java heap space

java.lang.OutOfMemoryError: Java heap space

Dumping heap to java_pid1784.hprof ...

Heap dump file created [4042764155 bytes in 38.328 secs]

 

Resolution:

Kindly follow the below steps :

1.Increase DA memory

 

Access the Data Aggregator installation directory/apache-karaf-

2.3.0/bin/setenv file.

b. Modify the IM_MAX_MEM from 2g to 10g

 

With regards to what value to use, you can perform the following steps:

 

ps -aef | grep java

 

on the DA will tell you how much memory is being used at this stage

 

Example: /nms/IMDataAggregator/jre/bin/java

-server -Xms128M -Xmx8G -XX:MaxPermSize=256M

-Dcom.sun.management.jmxremote -Djava......

 

So the recommendation is to configure more memory

 

2. Stop DA Service

3.  Rename apache-karaf*/data folder

4. Restart DA.

 Issue would be resolved.

 

If the issue is not resolved kindly contact CA Technical Support.

 

Additional Details:

 

Please find the below document to configure Memory on DA and DC

https://support.ca.com/cadocs/0/CA%20Performance%20Management%20Data%20Aggregator%202%204%201-ENU/Bookshelf_Files/HTML/caim_Install_Command_Line_ENU/index.htm?toc.htm?1894147.html