Dmytro Sen created AMBARI-19746:
-----------------------------------
Summary: Ambari HDFS Metric alerts turns to UNKNOWN status with
error "argument of type 'NoneType' is not iterable"
Key: AMBARI-19746
URL: https://issues.apache.org/jira/browse/AMBARI-19746
Project: Ambari
Issue Type: Bug
Components: alerts
Affects Versions: 2.5.0
Reporter: Dmytro Sen
Assignee: Dmytro Sen
Priority: Blocker
Fix For: 2.5.0
Build used : ambari-2.5.0.0-724
Test is updating the alert definition minimumValue to "0.0".
Payload used to update the minimumValue
{code:java}
/{
"AlertDefinition": {
"cluster_name": "cl1",
"id": 81,
"name": "increase_nn_heap_usage_daily",
"label": "NameNode Heap Usage (Daily)",
"component_name": "NAMENODE",
"description": "This service-level alert is triggered if the
NameNode heap usage deviation has grown beyond the specified threshold within a
day period.",
"enabled": true,
"ignore_host": false,
"interval": 1,
"scope": "ANY",
"service_name": "HDFS",
"source": {
"parameters": [{
"name": "mergeHaMetrics",
"display_name": "Whether active and stanby
NameNodes metrics should be merged",
"value": "false",
"description": "Whether active and stanby
NameNodes metrics should be merged.",
"type": "STRING",
"visibility": "HIDDEN"
}, {
"name": "interval",
"display_name": "Time interval in minutes",
"value": "1440.0",
"description": "Time interval in minutes.",
"type": "NUMERIC",
"visibility": "HIDDEN"
}, {
"name": "appId",
"display_name": "AMS application id",
"value": "NAMENODE",
"description": "The application id used to
retrieve the metric.",
"type": "STRING",
"visibility": "HIDDEN"
}, {
"name": "metricName",
"display_name": "Metric Name",
"value": "jvm.JvmMetrics.MemHeapUsedM",
"description": "The metric to monitor.",
"type": "STRING",
"visibility": "HIDDEN"
}, {
"name": "metric.deviation.warning.threshold",
"display_name": "Growth Rate",
"value": "20.0",
"description": "The percentage of NameNode heap
usage growth.",
"type": "PERCENT"
}, {
"name": "metric.deviation.critical.threshold",
"display_name": "Growth Rate",
"value": "50.0",
"description": "The percentage of NameNode heap
usage growth.",
"type": "PERCENT"
}, {
"name": "metric.units",
"display_name": "Metric Units",
"value": "MB",
"description": "The units that the metric data
points are reported in.",
"type": "STRING",
"visibility": "HIDDEN"
}, {
"name": "minimumValue",
"display_name": "Minimum Heap",
"value": "0.0",
"description": "The minimum heap increase in a
day.",
"type": "NUMERIC"
}],
"path":
"HDFS/2.1.0.2.0/package/alerts/alert_metrics_deviation.py",
"type": "SCRIPT"
}
}
}
{code}
Alert response :
{code:java}
03:14:20 AM 01-25-2017 AmbariItems FINE - API call response:{
"href" : "http://172.27.9.139:8080/api/v1/clusters/cl1/alerts/119";,
"Alert" : {
"cluster_name" : "cl1",
"component_name" : "NAMENODE",
"definition_id" : 81,
"definition_name" : "increase_nn_heap_usage_daily",
"firmness" : "HARD",
"host_name" : "ctr-e126-1485243696039-2656-01-000006.hwx.site",
"id" : 119,
"instance" : null,
"label" : "NameNode Heap Usage (Daily)",
"latest_timestamp" : 1485314039820,
"maintenance_state" : "OFF",
"occurrences" : 13,
"original_timestamp" : 1485313319818,
"repeat_tolerance" : 1,
"repeat_tolerance_remaining" : 0,
"scope" : "ANY",
"service_name" : "HDFS",
"state" : "UNKNOWN",
"text" : "argument of type 'NoneType' is not iterable"
}
}
{code}
Note : Test used to pass consistently.
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