Some of the common troubleshooting steps are given below, which user must follow if discovery or monitoring is not working.
Debug flags for vCD feature (ESM.import file) in ESM
- EnableVCDDiscoveryDebug = TRUE (Default value : FALSE)
- EnableVCDMonitoringDebug = TRUE (Default value : FALSE)
- LogLevel = ALL (Default value : ERR)
- IsDebug = TRUE (Default value is FALSE)
Log file in ESM:
vCD discovery logs will be dumped in the generic INCHARGE-ESM log file under local/logs directory.
Logs in DCF
Collector logs are located at <DCF_INSTALL_LOCATION>/Collecting/Collector-Manager/<collector Id>/logs/
Enabling Debug Logs for Collector in DCF
- Edit <DCF_INSTALL_LOCATION>/Collecting/Collector-Manager/<collector Id>/conf/logging.properties to increase log level
- Change the default INFO level to one of – CONFIG, FINE, FINER & FINEST (lowest value).
- The new log level takes effect in the next discovery.
- The kafka messages can also be configured to be written to file by editing <DCF_INSTALL_LOCATION>/Collecting/Collector-Manager/<collector Id>/conf/collecting.xml. Change enabled=true for file collector
<connector enabled="true" name="File" type="File-Connector" config="Collector-Manager/<collector Id>/conf/file-connector.xml" />
Discovery can fail due to following reasons:
CloudController Credentials are incorrect
Error in the log :
SAM GUI Test Credentials fails.
DCC not responding
Error in the log :
[April 30, 2019 4:35:46 AM EDT +968ms] t@27232000 Discovery #1
NV_MESSAGE-*-NV_GENERIC-MSG ERR : [Thread-7 DCCRestClientImpl]:Error occurred while sending a request to the DCC API Connection refused (Connection refused)
Kafka Credentials are incorrect
Errors in the log :
[April 30, 2019 4:43:59 AM EDT +481ms] t@2223998720 Discovery #1
NV_MESSAGE-*-NV_GENERIC-MSG ERR : [Thread-7 DiscoveryManager]:Error while starting discovery consumer thread.Timeout expired while fetching topic metadata (invalid Kafka login credentials may trigger this error)
[April 30, 2019 4:43:59 AM EDT +481ms] t@3325163264 platform
MAIN_MSG-*-STDFD_OUT-stdout: 2019-04-30 04:43:59,478 FATAL StringKafkaListener Thread-7 Kafka listener start error: Timeout expired while fetching topic metadata (invalid Kafka login credentials may trigger this error)
