The background,

Briefly record that Canal was monitored using Prometheus.

Second, implementation steps

1. Modify the Prometheus. Yml configuration file

Vim/Users/huan/soft/Prometheus Prometheus – 2.25.0 / Prometheus. Yml

scrape_configs:
  - job_name: 'canal'
    scrape_interval: 30s
    static_configs:
    - targets: ['localhost:11112'] The port configuration is canal.metric.pull. port from canal.properties
      labels:
        nodename: 'canal'
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#Check that the Prometheus. Yml syntax you just wrote is incorrect
./promtool check config prometheus.yml
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2. Start Prometheus

Nohup/Users/huan/soft/Prometheus/Prometheus - 2.25.0 / Prometheus \ - config file ="/ Users/huan/soft/Prometheus/Prometheus - 2.25.0 / Prometheus. Yml" \
--web.listen-address="0.0.0.0:9080" \
--web.enable-lifecycle \
--storage.tsdb.retention.time="3d" \
--log.level=debug \
> logs/prometheus.out 2>&1 &
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3. Check whether Prometheus is successfully connected to the Canal

4. Interpretation of Canal’s original indicators

indicators	instructions	unit	precision
canal_instance_transactions	Instance Indicates the number of received transactions	–	–
canal_instance	Instance Basic information	–	–
canal_instance_subscriptions	Number of Instance subscriptions	–	–
canal_instance_publish_blocking_time	Block time when an instance dump thread commits to an asynchronous parsing queue (parallel parsing mode only)	ms	ns
canal_instance_received_binlog_bytes	Instance Number of binlog bytes received	byte	–
canal_instance_parser_mode	Instance parsing mode (whether parallel parsing is enabled)	–	–
canal_instance_client_packets	Number of requests made by the Instance client	–	–
canal_instance_client_bytes	Bytes of packets sent to the Instance Client	byte	–
canal_instance_client_empty_batches	Send the null result count of the GET interface to the Instance Client	–	–
canal_instance_client_request_error	Instance Number of failed client requests	–	–
canal_instance_client_request_latency	Summary of the response time of instance Client requests	–	–
canal_instance_sink_blocking_time	Block time of the Instance Sink thread putting data to store	ms	ns
canal_instance_store_produce_seq	Event sequence number received by the Instance Store	–	–
canal_instance_store_consume_seq	Instance Store Number of events sequence numbers that are successfully consumed	–	–
canal_instance_store	Instance Store Basic information	–	–
canal_instance_store_produce_mem	Instance Store The memory occupied by all events received by the instance Store	byte	–
canal_instance_store_consume_mem	Instance Store The memory occupied by all events that are successfully consumed	byte	–
canal_instance_put_rows	Store PUT operation completed table Rows	–	–
canal_instance_get_rows	The table ROWS returned by the client GET request	–	–
canal_instance_ack_rows	Table ROWS freed by the Client ACK operation	–	–
canal_instance_traffic_delay	Delay between server and MySQL Master	ms	ms
canal_instance_put_delay	Store PUT Indicates the delay of operation events	ms	ms
canal_instance_get_delay	The client GET request returns the delay of events	ms	ms
canal_instance_ack_delay	The Client ACK operation releases the delay of events	ms	ms

5. Import fANA chart

Chart JSON data

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    },
    {
      "type": "panel"."id": "graph"."name": "Graph"."version": "5.0.0"
    },
    {
      "type": "datasource"."id": "prometheus"."name": "Prometheus"."version": "5.0.0"}]."annotations": {
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      "aliasColors": {},
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          "expr": "canal_instance_store{destination=~\"$destination\"}"."format": "time_series"."instant": true."intervalFactor": 1."legendFormat": "Batch mode: {{batchMode}}"."refId": "C"
        },
        {
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      },
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    },
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      },
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        },
        {
          "expr": "rate(canal_instance_client_packets{destination=~\"$destination\",packetType=\"CLIENTACK\"}[2m])"."format": "time_series"."interval": "15s"."intervalFactor": 2."legendFormat": "ACK"."refId": "B"}]."thresholds": []."timeFrom": null."timeShift": null."title": "Client QPS"."tooltip": {
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      },
      "id": 36."panels": []."title": "Store"."type": "row"
    },
    {
      "aliasColors": {},
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        "align": false."alignLevel": null}}, {"aliasColors": {},
      "bars": false."dashLength": 10."dashes": false."datasource": "$datasource"."description": "The memory of the Canal instance ringbuffer is occupied by unreleased events."."fill": 1."gridPos": {
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      },
      "id": 22."legend": {
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      },
      "lines": true."linewidth": 1."links": []."nullPointMode": "null"."percentage": false."pointradius": 5."points": false."renderer": "flot"."seriesOverrides": []."spaceLength": 10."stack": false."steppedLine": false."targets": [{"expr": "(canal_instance_store_produce_mem{destination=~\"$destination\"} - canal_instance_store_consume_mem{destination=~\"$destination\"}) / 1024"."format": "time_series"."interval": "15s"."intervalFactor": 2."legendFormat": "memsize"."refId": "A"}]."thresholds": []."timeFrom": null."timeShift": null."title": "Store remain mem"."tooltip": {
        "shared": true."sort": 0."value_type": "individual"
      },
      "type": "graph"."xaxis": {
        "buckets": null."mode": "time"."name": null."show": true."values": []},"yaxes": [{"format": "deckbytes"."label": null."logBase": 1."max": null."min": null."show": true
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        {
          "format": "short"."label": null."logBase": 1."max": null."min": null."show": true}]."yaxis": {
        "align": false."alignLevel": null}}]."refresh": false."schemaVersion": 16."style": "dark"."tags": [
    "canal"]."templating": {
    "list": [{"current": {
          "text": "prometheus"."value": "prometheus"
        },
        "hide": 0."label": "datasource"."name": "datasource"."options": []."query": "prometheus"."refresh": 1."regex": ""."type": "datasource"
      },
      {
        "allValue": null."current": {},
        "datasource": "$datasource"."hide": 0."includeAll": false."label": "destination"."multi": false."name": "destination"."options": []."query": "label_values(canal_instance, destination)"."refresh": 1."regex": ""."sort": 0."tagValuesQuery": ""."tags": []."tagsQuery": ""."type": "query"."useTags": false}},"time": {
    "from": "now-6h"."to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s"."10s"."30s"."1m"."5m"."15m"."30m"."1h"."2h"."1d"]."time_options": [
      "5m"."15m"."1h"."6h"."12h"."24h"."2d"."7d"."30d"]},"timezone": ""."title": "Canal instances"."uid": "8vh8NGpiz"."version": 103
}
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Three, reference links

1, github.com/alibaba/can…