spark git commit: [SPARK-6222][Streaming] Dont delete checkpoint data when doing pre-batch-start checkpoint

Repository: spark Updated Branches: refs/heads/master 540b2a4ea - 645cf3fcc [SPARK-6222][Streaming] Dont delete checkpoint data when doing pre-batch-start checkpoint This is another alternative approach to https://github.com/apache/spark/pull/4964/ I think this is a simpler fix that can be

spark git commit: [SPARK-6222][Streaming] Dont delete checkpoint data when doing pre-batch-start checkpoint

Repository: spark Updated Branches: refs/heads/branch-1.3 1723f0591 - 03e263f5b [SPARK-6222][Streaming] Dont delete checkpoint data when doing pre-batch-start checkpoint This is another alternative approach to https://github.com/apache/spark/pull/4964/ I think this is a simpler fix that can