mynameborat opened a new pull request #1107: Cleanup store directories on 
startup for non-logged store only
URL: https://github.com/apache/samza/pull/1107
 
 
   During startup, the CSM cleans up the base directories for stores. Ideally, 
this cleanup should only be done for non-logged stores. In our current setup, 
if the applications configure both logged and non-logged store base directories 
to be the same, we delete the logged store directories as well which results in 
unnecessary bootstrap. 
   
   In this PR, 
    * We modify the clean up behavior on startup to impact only non-logged 
stores
    * Update the configuration documentation to reflect potential implications 
of not configuring `job.logged.store.base.dir` and 
`job.non.logged.store.base.dir` for stateful applications.
    * Add a warning if both logged and non-logged store base directories are 
configured to use same path.

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