Error(Red X) on Integrated Components, Opensearch - master node shows "unknown"

Products

• VMware Aria Suite

Issue/Introduction

• VIDM Node (One of the Node in VIDM Cluster) has Error on "Integrated Components" 

 

     

• Fails to fetch Master Node: 

     

• In "analytics.log" error is seen as below: 
  

  com.vmware.idm.analytics.elasticsearch.JestHealthResultHandler - Failed to check health: {"root_cause":[{"type":"master_not_discovered_exception","reason":null}],"type":"master_not_discovered_exception","reason":null} 
  com.vmware.idm.analytics.elasticsearch.ElasticSearchHttpStorageAdapter - Unable to check cluster health, retention policy skipped. java.lang.RuntimeException: java.util.concurrent.TimeoutException
      at com.vmware.vidm.common.async.CompletableFutures.block(CompletableFutures.java:91)

Environment

VIDM 3.3.X

Cause

Sometime the node fails to fetch the Master Node for Opensearch.

Resolution

• On the affected node restart Opensearch service by below command: 
• /etc/init.d/opensearch restart