[jira] [Created] (HIVE-14828) Cloud/S3: Stats publishing should be on HDFS instead of S3

["Rajesh Balamohan (JIRA)" <ji...@apache.org>]

Rajesh Balamohan created HIVE-14828:
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             Summary: Cloud/S3: Stats publishing should be on HDFS instead of S3
                 Key: HIVE-14828
                 URL: https://issues.apache.org/jira/browse/HIVE-14828
             Project: Hive
          Issue Type: Improvement
          Components: Statistics
            Reporter: Rajesh Balamohan
            Assignee: Rajesh Balamohan
            Priority: Minor


Currently, stats files are created in S3. Later as a part of FSStatsAggregator, it reads this file and populates MS again.

{noformat}
2016-09-23 05:57:46,772 INFO  [main]: fs.FSStatsPublisher (FSStatsPublisher.java:init(49)) - created : s3a://BUCKET/test/.hive-staging_hive_2016-09-23_05-57-34_309_2648485988937054815-1/-ext-10001
2016-09-23 05:57:46,773 DEBUG [main]: fs.FSStatsAggregator (FSStatsAggregator.java:connect(53)) - About to read stats from : s3a://BUCKET/test/.hive-staging_hive_2016-09-23_05-57-34_309_2648485988937054815-1/-ext-10001
{noformat}

Instead of this, stats can be written directly on to HDFS and read locally instead of S3, which would help in reducing couple of calls to S3.



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