[AMBARI-20591] In case of HA-enabled cluster on shutting down Active Master, Ambari rest api call and HBase quick links show two Active Masters

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.5.1
• Component/s: ambari-metrics, ambari-server
• Assignee: Dmytro Sen
• Reporter: Romil Choksi
• Created: 27/Mar/17 16:40
• Updated: 16/Feb/18 13:14
• Resolved: 06/Apr/17 12:15

Description

In case of HA-enabled cluster on shutting down Active Master, Ambari rest api call and HBase quick links show two Active Masters. On restarting the stopped master, number of Active Master is down to 1.

Rest api call
https://host1:8443/api/v1/clusters/cl1/host_components?HostRoles/component_name=HBASE_MASTER&metrics/hbase/master/IsActiveMaster=true

Rest Api call response

{
"href": "https://host1:8443/api/v1/clusters/cl1/host_components?HostRoles/component_name=HBASE_MASTER&metrics/hbase/master/IsActiveMaster=true",
"items": [
{
"href": "https://host1:8443/api/v1/clusters/cl1/hosts/ctr-e129-1487033772569-55070-01-000002.localdomain/host_components/HBASE_MASTER",
"HostRoles": {
"cluster_name": "cl1",
"component_name": "HBASE_MASTER",
"host_name": "ctr-e129-1487033772569-55070-01-000002.localdomain"
},
"host": {
"href": "https://host1:8443/api/v1/clusters/cl1/hosts/ctr-e129-1487033772569-55070-01-000002.localdomain"
},
"metrics": {
"hbase": {
"master": {
"IsActiveMaster": "true"
}
}
}
},
{
"href": "https://host1:8443/api/v1/clusters/cl1/hosts/ctr-e129-1487033772569-55070-01-000003.localdomain/host_components/HBASE_MASTER",
"HostRoles": {
"cluster_name": "cl1",
"component_name": "HBASE_MASTER",
"host_name": "ctr-e129-1487033772569-55070-01-000003.localdomain"
},
"host": {
"href": "https://host1:8443/api/v1/clusters/cl1/hosts/ctr-e129-1487033772569-55070-01-000003.localdomain"
},
"metrics": {
"hbase": {
"master": {
"IsActiveMaster": "true"
}
}
}
}
]
}

Attaching screenshots.

Steps:

• On HA-enabled cluster go to HBase summary page.
• Shutdown the current HBase Active Master
• Verify the hbase quick links menu. You should see "(Active)" for couple of hostnames. If not, please refresh and verify.
• Click the rest api call and verify that two masters have IsActiveMaster value as true

Issue Links

• links to: Review Board