adoroszlai opened a new pull request #551: HDDS-2717. Handle chunk increments 
in datanode
URL: https://github.com/apache/hadoop-ozone/pull/551
 
 
   ## What changes were proposed in this pull request?
   
   Work-in-progress change for handling incremental chunks in datanode.
   
   Changes since the previous PR:
   
    * use block ID for server-side filename instead of client-supplied chunk 
name
    * fixed retry path
    * fixed integration tests
    * implemented file close on last putBlock
   
   https://issues.apache.org/jira/browse/HDDS-2717
   
   ## How was this patch tested?
   
   Tested with buffer sizes in the range 64KB-16MB with key sizes 1MB-512MB, eg.
   
   ```
   ozone freon ockg -p warmup -n 1 -t 1
   ozone freon ockg -p test -t 8 -n 64 -s 67108864 
   ozone freon ockv -p test -t 8 -n 64
   ```
   
   Found [RATIS-815](https://issues.apache.org/jira/browse/RATIS-815) with 
small buffer size and large key size combinations.

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