[GitHub] [carbondata] jackylk opened a new pull request #3459: [CARBONDATA-3582] support table status file backup

[GitBox]

jackylk opened a new pull request #3459: [CARBONDATA-3582] support table status file backup
URL: https://github.com/apache/carbondata/pull/3459
 
 
   When overwriting table status file, if process crashed, table status file will be in corrupted state. This can happen in an unstable environment, like in the cloud. To prevent the table corruption, user can enable a newly added CarbonProperty to enable backup of the table status before overwriting it.
   
   New CarbonProperty: ENABLE_TABLE_STATUS_BACKUP (default is false)
   When enabling this property, "tablestatus.backup" file will be created in the same folder of "tablestatus" file
   
   TODO: add document
   
    - [X] Any interfaces changed?
    No
    - [X] Any backward compatibility impacted?
    No
    - [X] Document update required?
   Yes
    - [X] Testing done
   new testcase is added
    - [X] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.
   No
   

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