avijayanhwx opened a new pull request #648: HDDS-3117. Recon throws 
InterruptedException while getting new snapshot from OM.
URL: https://github.com/apache/hadoop-ozone/pull/648
 
 
   ## What changes were proposed in this pull request?
   On a cluster where an ozone client is continuously pushing data into OM, we 
can have cases where the OM Delta updates request timing out or failing due to 
some unexpected error. In that case, the expected behavior of Recon is to 
request the whole snapshot from OM. The bug was that we were interrupting the 
thread on exception from delta updates query which caused the sync process to 
stop. Removed the interrupt call.
   
   ## What is the link to the Apache JIRA
   https://issues.apache.org/jira/browse/HDDS-3117
   
   ## How was this patch tested?
   Added acceptance tests for Recon's OM related APIs.
   Manually tested by creating **50 million keys** on OM, and verified that 
Recon OM DB sync works as expected. 

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