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