i followed the below steps to resolve issue. but i'm getting error. kindly provide the solution. Steps: 1)
find the alert REST url
curl -u
admin:$AMBARI_PASSWORD -H "X-Requested-by:ambari" -k -X GET http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions?AlertDefiition/name=yarn_app_timeline_server_webui
you should get something like:
{
"href" : "http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions?AlertDefinition/name=yarn_app_timeline_server_webui",
"items" : [
{
"href" :
"http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions/33",
"AlertDefinition" : {
"cluster_name" :
"$CLUSTER_NAME",
"id" : 33,
"label" : "App
Timeline Web UI",
"name" :
"yarn_app_timeline_server_webui"
}
}
]
}
2) Get the actual alert definition
Take the inner "href" value (in red, above) and run a second GET
command to get the actual definition of the alert. Following the example
above (note that the "id", which is 33 in the example, could be
different in your case):
curl -u admin:$AMBARI_PASSWORD
-H "X-Requested-by:ambari" -k -X GET http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions/33
> app_def.json
the content of output file app_def.json
should look similar to:
{
"href" : "http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions/33",
"AlertDefinition" : {
"cluster_name" : "$CLUSTER_NAME",
"component_name" :
"APP_TIMELINE_SERVER",
"description" : "This host-level alert is
triggered if the App Timeline Server Web UI is unreachable.",
"enabled" : true,
"id" : 33,
"ignore_host" : false,
"interval" : 1,
"label" : "App Timeline Web UI",
"name" :
"yarn_app_timeline_server_webui",
"scope" : "ANY",
"service_name" : "YARN",
"source" : {
"reporting" : {
"critical" : {
"text" :
"Connection failed to {1} ({3})"
},
"ok" : {
"text" :
"HTTP {0} response in {2:.3f}s"
},
"warning" : {
"text" :
"HTTP {0} response from {1} in {2:.3f}s ({3})"
}
},
"type" : "WEB",
"uri" : {
"kerberos_principal" :
"{{yarn-site/yarn.timeline-service.http-authentication.kerberos.principal}}",
"connection_timeout"
: 5.0,
"kerberos_keytab" :
"{{yarn-site/yarn.timeline-service.http-authentication.kerberos.keytab}}",
"http" :
"{{yarn-site/yarn.timeline-service.webapp.address}}",
"https_property" :
"{{yarn-site/yarn.http.policy}}",
"https_property_value" :
"HTTPS_ONLY",
"default_port"
: 0.0,
"https" :
"{{yarn-site/yarn.timeline-service.webapp.https.address}}"
}
}
}
}
3) Change the timeout
value in the json file
Edit the file app_def.json
and to increase the timeout of the alert change the value (these are seconds)
from
"connection_timeout" : 5.0,
to, for example ,12.0:
"connection_timeout" : 12.0,
====
There is a second important change to do the the json file to workaround an
issue with amabari and is to also change:
"default_port" : 0.0,
to
"default_port" : 0, 4)
Send back the new definition to Ambari
Issue the command (as usual check that the url is the one found at point 1):
curl -u admin:$AMBARI_PASSWORD -H
"X-Requested-by:ambari" -k -X PUT -d @app_def.json http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/alert_definitions/33 ERROR: { "status" : 400, "message" : "org.apache.ambari.server.controller.spi.UnsupportedPropertyException:
The properties [href] specified in the request or predicate are
not supported for the resource type AlertDefinition."
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