Nacos monitor guide

    Deploy the Nacos cluster according to the deploy document

    Configure the application. properties file to expose metrics data

    Access {ip}:8848/nacos/actuator/prometheus to see if metrics data can be accessed

    Deploy prometheus to collect Nacos metrics data

    Download the Prometheus version you want to install at the address of download prometheus

    Decompress prometheus compression package

    2. cd prometheus-*

    Modify configuration file prometheus.yml to collect Nacos metrics data

    1.     metrics_path: '/nacos/actuator/prometheus'
    2.     static_configs:
    3.       - targets:['{ip1}:8848','{ip2}:8848','{ip3}:8848']

    Start prometheus service

    windows

    Download the corresponding version of Windows and decompress it

    1.     metrics_path: '/nacos/actuator/prometheus'
    2.     static_configs:
    3.       - targets:['{ip1}:8848','{ip2}:8848','{ip3}:8848']

    Start prometheus service

    By accessing http://{ip}:9090/graph, we can see the data collected by prometheus. By searching nacos_monitor in the search bar, we can find Nacos data to show the success of the data collection.

    Deploy grafana to graphically display metrics data

    Install grafana on the same machine as prometheus, and use yum to install grafana

    mac

    linux

    1. sudo yum install https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-5.2.4-1.x86_64.rpm
    2. sudo service grafana-server start

    Reference document：http://docs.grafana.org/installation/windows/

    Access grafana:

    Configuring prometheus data sourceIMAGE

    Import Nacos grafana monitoring template

    Nacos monitoring is divided into three modules:

    • nacos monitor shows core monitoring itemsIMAGE
    • nacos alert is alerts about nacos

    DingTalk alert

    Configure DingTalk robotsIMAGE

    Configure DingTalk robots url

    Test alertIMAGE

    mail alert

    Modify defaults.ini configuration file to add mail alerts

    1. #################################### SMTP / Emailing ##########################
    2. [smtp]
    3. enabled = true
    4. host = smtp.126.com:25
    5. user = xxxxxx
    7. ;cert_file =
    8. ;key_file =
    9. skip_verify = true
    10. from_address = xxxxxx@126.com
    12. [emails]
    13. ;welcome_email_on_sign_up = false

    Configuration notification mailbox

    meaning of Nacos metrics

    jvm metrics

    itemmeaning
    http_server_requests_seconds_counthttp requests count
    http_server_requests_seconds_sumhttp requests time
    nacos_timer_seconds_sumNacos config notify time
    nacos_timer_seconds_countNacos config notify count
    nacos_monitor{name='longPolling'}Nacos config connection count
    nacos_monitor{name='configCount'}Nacos configuration file count
    nacos_monitor{name='dumpTask'}Nacos config dump task count
    nacos_monitor{name='notifyTask'}Nacos config notify task count
    nacos_monitor{name='getConfig'}Nacos config read configuration count
    nacos_monitor{name='publish'}Nacos config update configuration count
    nacos_monitor{name='ipCount'}Nacos naming ip count
    nacos_monitor{name='domCount'}Nacos naming domain count
    nacos_monitor{name='failedPush'}Nacos naming push fail count
    nacos_monitor{name='avgPushCost'}Nacos naming push cost time(average)
    nacos_monitor{name='leaderStatus'}Nacos naming if node is leader
    nacos_monitor{name='maxPushCost'}Nacos naming push cost time(max)
    nacos_monitor{name='mysqlhealthCheck'}Nacos naming mysql health check count
    nacos_monitor{name='httpHealthCheck'}Nacos naming http health check count
    nacos_monitor{name='tcpHealthCheck'}Nacos naming tcp health check count

    nacos exception

    client metrics

    itemmeaning
    nacos_monitor{name='subServiceCount'}subscribed services count
    nacos_monitor{name='pubServiceCount'}published services count
    nacos_monitor{name='configListenSize'}listened configuration file count
    nacos_client_request_seconds_countrequest count
    nacos_client_request_seconds_sumrequest time

    Nacos-Sync monitor

    With the release of Nacos 0.9, Nacos-Sync 0.3 supports metrics monitoring. It can observe the running status of Nacos-Sync service through metrics data, and improve the monitoring capability of Nacos-Sync in production environment.Reference for the Construction of the Overall Monitoring System Nacos Monitoring Manual

    The same as Nacos monitoring, Nacos-Sync also provides monitoring templates to import monitoring

    Nacos-Sync monitoring is also divided into three modules:

    • nacos-sync monitor shows core monitoring itemsmonitor
    • nacos-sync detail and alert shows monitoring curves and alarms.

    Nacos-Sync metrics meaning

    jvm metrics

    application metrics

    itemmeaning
    nacosSync_task_sizesync task count
    nacosSync_cluster_sizecluster count
    nacosSync_add_task_rtadd task time
    nacosSync_delete_task_rtdelete task time
    nacosSync_dispatcher_taskdispatcher task time
    nacosSync_sync_task_errorsync task error count