Data Collector showing down and unable to connect
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Data Collector showing down and unable to connect


Article ID: 199943


Updated On:


CA Infrastructure Management CA Performance Management - Usage and Administration DX NetOps


Data Collector showing down and unable to connect and the following errors display in the Data Collector logs:

2020-09-21 10:01:04,402 | ERROR | Checkpoint failed | | ActiveMQ Journal Checkpoint Worker
java.lang.OutOfMemoryError: Java heap space

2020-09-21 10:01:04,402 | INFO  | Ignoring no space left exception, Java heap space | org.apache.activemq.util.DefaultIOExceptionHandler | ActiveMQ Journal Checkpoint Worker Java heap space
 at org.apache.activemq.util.IOExceptionSupport.create([activemq-client-5.15.8.jar:5.15.8]
 at java.util.concurrent.Executors$[:1.8.0_222]
 at java.util.concurrent.FutureTask.runAndReset([:1.8.0_222]
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301([:1.8.0_222]
 at java.util.concurrent.ScheduledThreadPoolExecutor$[:1.8.0_222]
 at java.util.concurrent.ThreadPoolExecutor.runWorker([:1.8.0_222]
 at java.util.concurrent.ThreadPoolExecutor$[:1.8.0_222]

2020-09-20 11:51:21,497 | ERROR | raf-2.4.3/deploy | fileinstall                      | ?                                   ? | 6 - org.apache.felix.fileinstall - 3.5.0 |  | In main loop, we have serious trouble
java.lang.OutOfMemoryError: Java heap space


Release : 3.7

Component : IM Reporting / Admin / Configuration


Java has run out of memory


In the short term:

1. Stop DCMD: systemctl stop dcmd

2. Stop ActiveMQ: systemctl stop activemq

3. Ensure the processes are no longer running: ps -ef | grep apache

4. Start DCMD: systemctl start dcmd

In the longer term and if the issue replicates shortly after the above:

1. Add additional memory to the Data Collector