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Subject [GitHub] [hadoop] steveloughran opened a new pull request #879: HADOOP-15563 Full S3Guard Support for on-demand DDB tables
Date Fri, 31 May 2019 15:45:13 GMT
steveloughran opened a new pull request #879: HADOOP-15563 Full S3Guard Support for on-demand
DDB tables
URL: https://github.com/apache/hadoop/pull/879
   HADOOP-15563 Full S3Guard Support for on-demand DDB tables
   * If you create a table with read capacity == write capacity == 0, you get an on-demand
   * change the defaults in Constants and core-defaults to be zero. You get an on-demand table
by default.
   * S3Guard docs reworked to cover the topic, including the updated defaults and why you
should go to on-demand; also mentioned in the troubleshooting section.
   It'd be nice if set-capacity could switch a table to on-demand, but the latest AWS SDK
doesn't let you do that, even though the low level REST API does.
   ITestS3GuardToolDynamoDB l
   * ifecycle test creates an on-demand table and skips changing its capacity.
   * Fix HADOOP-16187 ITestS3GuardToolDynamoDB test failures: test wasn't clearing enough
per-bucket options.
   ITestDynamoDBMetadataStore: review of every test case in so that
   * Capacity is always set to on-demand before table creation
   * Every test always cleans up its tables, even on assert failures.
   Those tests have tended to leak tables in the past; these changes should eliminate it on
uninterrupted test runs, and with on-demand capacity you don't get billed much until the next
time you do an audit and delete of tables.
   - removed @Unstable attribute from those Constants which I consider having been shipping
too long to be changed.
   - moved test-only S3GUARD_DDB_TEST_TABLE_NAME_KEY key to S3ATestConstants. It was tagged
Unstable, and should be in the right file.
   Change-Id: Ia44559354666db8027e574eab97983167ed930bf
   Note: this patch includes HADOOP-16117 as precursor; that's a separate PR, (#818); its
needed to be able to create on-demand tables

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