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https://issues.apache.org/jira/browse/HIVE-14828?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan updated HIVE-14828:
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Attachment: HIVE-14828.1.patch
it is better to have use hdfs for stats file. rebasing for master branch.
> 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
> Affects Versions: 1.2.0
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Minor
> Fix For: 1.3.0
>
> Attachments: HIVE-14828.1.patch, HIVE-14828.branch-1.2.001.patch,
> HIVE-14828.branch-2.0.001.patch
>
>
> 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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