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Monitoring Metrics

Overview

Cloud Eye monitors the running status of cloud services and usage of each metric, and creates alarm rules for monitoring metrics.

After you enable ROMA Connect, Cloud Eye automatically associates with ROMA Connect monitoring metrics to help you understand the running status of ROMA Connect.

Enabling Cloud Eye

Cloud Eye is enabled by default.

For details about how to view ROMA Connect monitoring metrics, see Querying Cloud Service Monitoring Metrics.

You can create an alarm rule to send an alarm notification when the monitoring data meets the specified conditions. For details, see Creating an Alarm Rule.

Metrics Supported by FDI

Table 1 Metrics supported by FDI

Metrics

Description

Total Tasks

Total number of tasks on ROMA FDI

Data Size

Size of data migrated by ROMA FDI in a specified period

Data Records

Number of data records migrated by ROMA FDI in a specified period

Successful Tasks

Number of tasks successfully executed by ROMA FDI in a specified period

Failed Tasks

Number of tasks failed to be executed by ROMA FDI in a specified period

Active Tasks

Number of active tasks on ROMA FDI

Metrics Supported by APIC

Table 2 Metrics supported by APIC

Metrics

Description

Data API Calls

Number of times that a data API has been called

Maximum Latency for Data API

Maximum latency of a data API

Average Latency for Data API

Average latency of a data API

Data API Failures

Number of times that a data API has been called

Function API Calls

Number of times that a function API has been called

Maximum Latency for Function API

Maximum latency of a function API

Average Latency for Function API

Average latency of a function API

Function API Failures

Number of times that a function API fails

API Calls

Number of times that an API has been called

4xx Errors

Number of times that an API returns a 4xx error

5xx Errors

Number of times that an API returns a 5xx error

Throttled API Calls

Number of times that an API call has been throttled

Average Latency

Average latency of an API

Maximum Latency

Maximum latency of an API

Metrics Supported by MQS

Table 3 Metrics supported by MQS

Category

Metrics

Description

Instance

Partitions

Number of used partitions in an instance

Topics

Number of created topics in an instance

Accumulated Messages

Total number of accumulated messages in all consumer groups of an instance

Broker

Message Size

Total size of messages in the broker

Message Creation Rate

Number of messages created per second

Message Retrieval

Number of bytes retrieved per second

Message Creation

Number of bytes created per second

Public Inbound Traffic

Inbound traffic over public networks per second

Public Outbound Traffic

Outbound traffic over public networks per second

Average Message Creation Processing Duration

Average time that the broker spends processing message creation requests

Average Message Retrieval Processing Duration

Average time that the broker spends processing message retrieval requests

Successful Creation Requests

Number of message creation requests failed to be processed per minute at the Rest node

Failed Creation Requests

Number of message creation requests failed to be processed per minute at the Rest node

Creation Request Latency

Average latency of message creation requests processed at the Rest node

Created Messages

Number of messages created per minute by the Rest node

Message Creation Rate

Total size of messages created per second by the Rest node

Successful Retrieval Requests

Number of message retrieval requests successfully processed per minute at the Rest node

Failed Retrieval Requests

Number of message retrieval requests failed to be processed per minute by the Rest node

Retrieval Request Latency

Average latency of message retrieval requests processed by the Rest node

Retrieved Messages

Number of messages retrieved per minute by the Rest node

Message Retrieval Rate

Total size of messages retrieved per second by the Rest node

Successful Request Submissions

Number of message retrieval requests successfully submitted per minute by the Rest node

Failed Request Submissions

Number of message retrieval requests failed to be submitted per minute by the Rest node

Submission Request Latency

Average latency of request submission by the Rest node

Submitted Messages

Number of messages submitted per minute by the Rest node

Request Submission Rate

Total size of requests submitted per second by the Rest node

Broker Alive

Whether the Kafka broker is alive

Connections

Total number of TCP connections on the Kafka broker

CPU Usage

CPU usage of the Kafka VM

Average Load per CPU Core

Average load of each CPU core of the Kafka VM

Disk Capacity Usage

Disk usage of the Kafka VM

Memory Usage

Memory usage of the Kafka VM

JVM Heap Memory Usage of Kafka

Heap memory usage of the Kafka JVM

Inbound Traffic

Inbound traffic per second

Outbound Traffic

Outbound traffic per second

Average Disk Read Time

Average time for each disk I/O read in the monitoring period

Average Disk Write Time

Average time for each disk I/O write in the monitoring period

Queue

Message Size

Total size of messages in the queue

Message Creation Rate

Number of messages created per second

Message Retrieval

Number of bytes retrieved per second

Message Creation

Number of bytes created per second

Total Messages

Total number of messages in the queue

Metrics Supported by LINK

Table 4 Metrics Supported by LINK

Metrics

Description

Online Devices

Number of online devices of a user

Total Number of Messages

Number of messages sent by all devices of a user

TPS

Number of messages sent by devices per second in a measurement period

Maximum Latency for Message Sending

Number of milliseconds for which a device delays sending of messages in a measurement period

Dimensions

Key

Value

instance_id

ROMA Connect instance

fdi

Data integration

apic

Service integration

kafka_instance_id

Message integration instance

kafka_broker

Message integration broker node

kafka_rest

Message integration REST node

kafka_topics

Message integration queue

kafka_partitions

Message integration partition

kafka_groups-partitions

Consumer group of the message integration partition

kafka_groups_topics

Consumer group of the message integration queue

kafka_groups

Consumer group of the message integration

link

Device integration