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Posted to common-issues@hadoop.apache.org by "Sean Mackrory (JIRA)" <ji...@apache.org> on 2017/04/20 22:23:04 UTC
[jira] [Created] (HADOOP-14335) Improve DynamoDB schema update
story
Sean Mackrory created HADOOP-14335:
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Summary: Improve DynamoDB schema update story
Key: HADOOP-14335
URL: https://issues.apache.org/jira/browse/HADOOP-14335
Project: Hadoop Common
Issue Type: Sub-task
Affects Versions: HADOOP-13345
Reporter: Sean Mackrory
Assignee: Sean Mackrory
On HADOOP-13760 I'm realizing that changes to the DynamoDB schema aren't great to deal with. Currently a build of Hadoop is hard-coded to a specific schema version. So if you upgrade from one to the next you have to upgrade everything (and then update the version in the table - which we don't have a tool or document for) before you can keep using S3Guard. We could possibly also make the definition of compatibility a bit more flexible, but it's going to be very tough to do that without knowing what kind of future schema changes we might want ahead of time.
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