THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Useful Resources
| Resource | Link |
|---|---|
| Alerts REST API | Alert Definitions |
| Customizing the Alert Template | Customizing the Alert Template |
Setting Connection Timeout for WEB and METRIC Alerts
WEB and METRIC alert types include a connection_timeout property on the alert definition (see below in AlertDefinition: source : uri : connection_timeout). This value is in seconds and defaults to 5.0. Use the Ambari REST API
...
by updating the source block if you need to modify the connection timeout.
| Code Block |
|---|
{ "href" : "http:// |
...
c6401.ambari.apache.org:8080/api/v1/clusters/MyCluster/alert_definitions/42",
"AlertDefinition" : {
"cluster_name" : "MyCluster",
"component_name" : "APP_TIMELINE_SERVER",
"description" : "This host-level alert is triggered if the App Timeline Server Web UI is unreachable.",
"enabled" : true,
"id" : 42,
"ignore_host" : false,
"interval" : 1,
"label" : "App Timeline Web UI",
"name" : "yarn_app_timeline_server_webui",
"scope" : "ANY",
"service_name" : "YARN",
"source" : {
"reporting" : {
"ok" : {
"text" : "HTTP {0} response in {2:.3f}s"
},
"warning" : {
"text" : "HTTP {0} response from {1} in {2:.3f}s ({3})"
},
"critical" : {
"text" : "Connection failed to {1} ({3})"
}
},
"type" : "WEB",
"uri" : {
"http" : "{{yarn-site/yarn.timeline-service.webapp.address}}",
"https" : "{{yarn-site/yarn.timeline-service.webapp.https.address}}",
"https_property" : "{{yarn-site/yarn.http.policy}}",
"https_property_value" : "HTTPS_ONLY",
"kerberos_keytab" : "{{yarn-site/yarn.timeline-service.http-authentication.kerberos.keytab}}",
"kerberos_principal" : "{{yarn-site/yarn.timeline-service.http-authentication.kerberos.principal}}",
"default_port" : 0.0,
"connection_timeout" : 5.0
}
}
}
} |
To update the connection_timeout with the API, you need to PUT the entire contents of the source block with your API call. For example, you need to PUT the following to update the connection_timeout to 6.5 seconds.
| Code Block |
|---|
PUT /api/v1/clusters/MyCluster/alert_definitions/42
{
"AlertDefinition" : {
"source" : {
"reporting" : {
"ok" : {
"text" : "HTTP {0} response in {2:.3f}s"
},
"warning" : {
"text" : "HTTP {0} response from {1} in {2:.3f}s ({3})"
},
"critical" : {
"text" : "Connection failed to {1} ({3})"
}
},
"type" : "WEB",
"uri" : {
"http" : "{{yarn-site/yarn.timeline-service.webapp.address}}",
"https" : "{{yarn-site/yarn.timeline-service.webapp.https.address}}",
"https_property" : "{{yarn-site/yarn.http.policy}}",
"https_property_value" : "HTTPS_ONLY",
"kerberos_keytab" : "{{yarn-site/yarn.timeline-service.http-authentication.kerberos.keytab}}",
"kerberos_principal" : "{{yarn-site/yarn.timeline-service.http-authentication.kerberos.principal}}",
"default_port" : 0.0,
"connection_timeout" : 6.5
}
}
}
} |
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