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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2019/08/09 05:43:10 UTC

[GitHub] [hadoop] avijayanhwx opened a new pull request #1259: HDDS-1105 : Add mechanism in Recon to obtain DB snapshot 'delta' updates from Ozone Manager

avijayanhwx opened a new pull request #1259: HDDS-1105 : Add mechanism in Recon to obtain DB snapshot 'delta' updates from Ozone Manager
URL: https://github.com/apache/hadoop/pull/1259
 
 
   Added mechanism in Recon to obtain DB snapshot 'delta' updates from Ozone Manager. Recon will make RPC calls to OM to get delta updates from the latest sequence number of its own OM snapshot DB. After applying the changes to its OM DB, the updates are passed on to the set of tasks that are "listening" on OM DB updates. 
   
   Other than the core logic for the above, the patch : 
   - Cleans up the unit test code
   - Fixes issues in OM DB updates sender
   - Removes the need for powermock in recon unit tests.
   - Added guice injection to Task framework.
   - Cleans up contract of Recon task interface. 

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