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https://issues.apache.org/jira/browse/HADOOP-16118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16789791#comment-16789791
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Steve Loughran commented on HADOOP-16118:
-----------------------------------------
APIs to create and update tables let you specify this
https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_CreateTable.html
https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/dynamodbv2/AmazonDynamoDB.html#createTable-com.amazonaws.services.dynamodbv2.model.CreateTableRequest-
I've been testing with a pay-per-request table and part from where the test
ITestS3GuardToolDynamoDB.testDynamoDBInitDestroyCycle fails on those branche
2.9-3.1 (We cut the capacity change from 3.2), all is well
{code}
testDynamoDBInitDestroyCycle(org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolDynamoDB)
Time elapsed: 18.179 s <<< ERROR!
com.amazonaws.services.dynamodbv2.model.AmazonDynamoDBException: One or more
parameter values were invalid: Neither ReadCapacityUnits nor WriteCapacityUnits
can be specified when BillingMode is PAY_PER_REQUEST (Service:
AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException; Request
ID: J4B2L7CSQAGEF9LD028G4T8ACVVV4KQNSO5AEMVJF66Q9ASUAAJG)
{code}
Proposed
* we add this option
* it is on by default, especially for tests
That saves us having to guess what a good capacity is, keeps cost down for all
> S3Guard create bucket process to support on-demand DDB tables
> -------------------------------------------------------------
>
> Key: HADOOP-16118
> URL: https://issues.apache.org/jira/browse/HADOOP-16118
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Priority: Minor
>
> AWS now supports [on demand DDB
> capacity|https://aws.amazon.com/blogs/aws/amazon-dynamodb-on-demand-no-capacity-planning-and-pay-per-request-pricing/]
>
> This has lowest cost and best scalability, so could be the default capacity.
> + add a new option to set-capacity.
> Will depend on an SDK update: created HADOOP-16117.
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