Indhumathi27 opened a new pull request #3252: [CARBONDATA-3409] Fix Concurrent 
dataloading Issue with mv
URL: https://github.com/apache/carbondata/pull/3252
 
 
   Problem:
   While performing concurrent dataloading to MV datamap, if any of the loads 
was not able to get TableStatusLock, then because newLoadName and segmentMap 
was empty, it was doing full rebuild.
   
   Solution:
   If load was not able to take tablestatuslock, then disable the datamap and 
return
   
    - [ ] Any interfaces changed?
    
    - [ ] Any backward compatibility impacted?
    
    - [ ] Document update required?
   
    - [ ] Testing done
           manually tested
          
    - [ ] For large changes, please consider breaking it into sub-tasks under 
an umbrella JIRA. 
   
   

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