PahoSubscriber Monitoring

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

Table 1 PahoSubscriber metrics

Category

Metric

Name

Description

Unit

Data Type

Default Aggregation Mode

Monitoring of PUBLISH packets received by PahoSubscriber (message)

uri

uri

URI of the MQTT server connected to PahoSubscriber

-

ENUM

LAST

msgType

msgType

Type of the packet that is sent

-

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

Node-based monitoring of PUBLISH packets received by PahoSubscriber (uriMessage)

uri

uri

URI of the MQTT server connected to PahoSubscriber

-

ENUM

LAST

errorCount

errorCount

Errors

-

INT

SUM

invokeCount

invokeCount

Calls

-

INT

SUM

totalTime

totalTime

Total response time

-

INT

SUM

Exception (exception: exception statistics of PahoSubscriber calls)

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

PahoSubscriber topic-based monitoring (clientReceive)

clientId

clientId

clientId

-

ENUM

LAST

topic

topic

Topic

-

ENUM

LAST

msgReceivedCount

msgReceivedCount

Number of message receiving times

-

INT

SUM

bytesReceived

bytesReceived

Number of bytes received

-

INT

SUM

PahoSubscriber version (version)

version

version

Version

-

STRING

LAST

PahoSubscriber topic summary (total)

msgReceivedCount

msgReceivedCount

Total number of message receiving times

-

INT

SUM

bytesReceived

bytesReceived

Total number of bytes received

-

INT

SUM