Data Collectors Missing from System Health Report

Products

• CA Performance Management - Usage and Administration
• DX NetOps

Issue/Introduction

Data Collector Health Report is only displaying statistics for 3 of 11 DCs. Data Collector Polling displays all 11

System health not showing data collector data 

 

The following error is seen in the karaf.log

 

2021-02-23 16:09:24,751 | WARN  | l 60000-thread-1 | DCHealthScheduledPollRequest     | ler.DCHealthScheduledPollRequest  199 | 203 - com.ca.im.data-collection-manager.health - 20.2.6.RELEASE-474 |  | Could not determine compAttr for TypedAttr - [identifier]:{http://im.ca.com/selfmonitor}DAHealthDataCollectorPollingStatistics.HeapSizeInBytes [identifier type]:javax.xml.namespace.QName[value types]:[Ljava.lang.Double;

Environment

Dx NetOps Performance Management 20.2

Cause

This can occur if the DC didn't download typecatalog successfully. To resolve this please do the following which will redownload the typecatalog. 

Resolution

1. Stop the Data collector 
systemctl stop dcmd 
systemctl stop activemq

2. mv /apps/IMDataCollector/apache-karaf-2.4.3/data /apps/IMDataCollector/apache-karaf-2.4.3/data.old

3. restart data collector 
systemctl start activemq
systemctl start dcmd