Data Collector Not Connected

Products

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

Issue/Introduction

CAPM shows the following message related to the data collector:

DC Connection status goes back and forth between connected and not connected

 

 

Environment

Dx NetOps Performance Management any version

Cause

The file system was out of disk space

2021-01-07 04:50:22,168 | ERROR | pool-19-thread-1 | ExceptionLog | .ca.im.core.util.ExceptionLogger 104 | 167 - com.ca.im.common.core.util - 20.2.2.RELEASE-321 | | An existing application exception RECURRED (Key=2243aa2e889b0f43721bb89c8a4addf90e9bb027), Recurrence count=160 : No space left on device

2021-01-07 04:32:25,437 | WARN | Journal failed while writing at: 1408:23228369 | org.apache.activemq.store.kahadb.disk.journal.DataFileAppender | ActiveMQ Data File Writer java.io.IOException: No space left on device at java.io.RandomAccessFile.writeBytes(Native Method)[:1.8.0_222] at java.io.RandomAccessFile.write(RandomAccessFile.java:525)[:1.8.0_222] at org.apache.activemq.util.RecoverableRandomAccessFile.write(RecoverableRandomAccessFile.java:249)[activemq-kahadb-store-5.15.8.jar:5.15.8] at org.apache.activemq.store.kahadb.disk.journal.DataFileAppender.processQueue(DataFileAppender.java:335)[activemq-kahadb-store-5.15.8.jar:5.15.8] at org.apache.activemq.store.kahadb.disk.journal.DataFileAppender$1.run(DataFileAppender.java:172)[activemq-kahadb-store-5.15.8.jar:5.15.8]

Resolution

Remove files to free up disk space. This could include the following

/opt/IMDataAggregator/apache-karaf-2.4.3/data.bak , data.bak2 , etc.

any .HPROF files created from memory dumps of the java process

 

Additional Information

If there is a recurring disk space issue, it's suggested that additional disk space be added