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Cassandra Monitoring

This section describes the types, names, and meanings of Cassandra metrics collected by APM.

Table 1 Collection parameters for Cassandra monitoring

Parameter	Data Type	Application Type	Default	Supported Start Agent Version	Supported End Agent Version	Description
Threshold (ms) for Reporting Connection Trace	integer	JAVA	1	2.2.9	-	Threshold for reporting borrowConnection() method traces. If the threshold is not exceeded, such traces will not be reported.
Collect Original CQL Statement or Not	radio	JAVA	false	2.2.9	-	Whether to collect original CQL statements

Table 2 Cassandra metrics

Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
CQL call (Cql)	cql	cql	Executed CQL Statement	-	ENUM	LAST
	concurrentMax	concurrentMax	Maximum concurrency	-	INT	MAX
	errorCount	errorCount	Number of errors	-	INT	SUM
	errorTraceId	errorTraceId	ID of the trace that encounters an error in a collection period	-	STRING	LAST
	invokeCount	invokeCount	Number of calls	-	INT	SUM
	lastError	lastError	Error message	-	STRING	LAST
	maxTime	maxTime	Maximum response time	-	INT	MAX
	queryRowCount	queryRowCount	Number of read rows	-	INT	SUM
	runningCount	runningCount	Number of executions of the method at the time of collection	-	INT	SUM
	slowTraceId	slowTraceId	ID of the slowest trace in a collection period	-	STRING	LAST
	totalTime	totalTime	Total response time	-	INT	SUM
	range1	range1	Number of requests with 0–10 ms response time	-	INT	SUM
	range2	range2	Number of requests with 10–100 ms response time	-	INT	SUM
	range3	range3	Number of requests with 100–500 ms response time	-	INT	SUM
	range4	range4	Number of requests with 500–1000 ms response time	-	INT	SUM
	range5	range5	Number of requests with 1–10s response time	-	INT	SUM
	range6	range6	Number of requests with response time longer than 10s	-	INT	SUM
Cassandra node call (node)	node	node	Node address	-	ENUM	LAST
	concurrentMax	concurrentMax	Maximum concurrency	-	INT	MAX
	errorCount	errorCount	Number of errors	-	INT	SUM
	errorTraceId	errorTraceId	ID of the trace that encounters an error in a collection period	-	STRING	LAST
	slowTraceId	slowTraceId	ID of the slowest trace in a collection period	-	STRING	LAST
	invokeCount	invokeCount	Number of calls	-	INT	SUM
	lastError	lastError	Error message	-	STRING	LAST
	maxTime	maxTime	Maximum response time	-	INT	MAX
	totalTime	totalTime	Total response time	-	INT	SUM
	range1	range1	Number of requests with 0–10 ms response time	-	INT	SUM
	range2	range2	Number of requests with 10–100 ms response time	-	INT	SUM
	range3	range3	Number of requests with 100–500 ms response time	-	INT	SUM
	range4	range4	Number of requests with 500–1000 ms response time	-	INT	SUM
	range5	range5	Number of requests with 1–10s response time	-	INT	SUM
	range6	range6	Number of requests with response time longer than 10s	-	INT	SUM
Cassandra cluster call (cluster)	nodes	nodes	Cluster node information	-	ENUM	LAST
	concurrentMax	concurrentMax	Maximum concurrency	-	INT	MAX
	errorCount	errorCount	Number of errors	-	INT	SUM
	errorTraceId	errorTraceId	ID of the trace that encounters an error in a collection period	-	STRING	LAST
	slowTraceId	slowTraceId	ID of the slowest trace in a collection period	-	STRING	LAST
	invokeCount	invokeCount	Number of calls	-	INT	SUM
	lastError	lastError	Error message	-	STRING	LAST
	maxTime	maxTime	Maximum response time	-	INT	MAX
	totalTime	totalTime	Total response time	-	INT	SUM
	range1	range1	Number of requests with 0–10 ms response time	-	INT	SUM
	range2	range2	Number of requests with 10–100 ms response time	-	INT	SUM
	range3	range3	Number of requests with 100–500 ms response time	-	INT	SUM
	range4	range4	Number of requests with 500–1000 ms response time	-	INT	SUM
	range5	range5	Number of requests with 1–10s response time	-	INT	SUM
	range6	range6	Number of requests with response time longer than 10s	-	INT	SUM
Connection details (connection)	host	host	Connected host	-	ENUM	LAST
	concurrentMax	concurrentMax	Maximum concurrency	-	INT	MAX
	invokeCount	invokeCount	Number of calls	-	INT	SUM
	totalTime	totalTime	Total time	-	INT	SUM
	errorCount	errorCount	Number of errors	-	INT	SUM
	maxTime	maxTime	Maximum response time	-	INT	SUM
	range1	range1	Number of requests with 0–10 ms response time	-	INT	SUM
	range2	range2	Number of requests with 10–100 ms response time	-	INT	SUM
	range3	range3	Number of requests with 100–500 ms response time	-	INT	SUM
	range4	range4	Number of requests with 500–1000 ms response time	-	INT	SUM
	range5	range5	Number of requests with 1–10s response time	-	INT	SUM
	range6	range6	Number of requests with response time longer than 10s	-	INT	SUM
Exception (exception: Cassandra call exception statistics)	exceptionType	exceptionType	Exception type	-	ENUM	LAST
	causeType	causeType	Exception class	-	ENUM	LAST
	count	count	Number of times the exception has occurred	-	INT	SUM
	message	message	Message returned when the exception occurred	-	STRING	LAST
	stackTrace	stackTrace	Exception stack information	-	CLOB	LAST
Cassandra summary (total: summary of Cassandra call statistics)	invokeCount	invokeCount	Total number of calls	-	INT	SUM
	queryRowCount	queryRowCount	Total number of read rows	-	INT	SUM
	errorCount	errorCount	Total number of errors	-	INT	SUM
	totalTime	totalTime	Total response time	-	INT	SUM
Cassandra version (version)	version	version	Version	-	STRING	LAST

Parent topic: Databases