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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2019/03/13 18:52:01 UTC
[jira] [Commented] (HADOOP-16118) S3Guard to support on-demand DDB
tables
[ https://issues.apache.org/jira/browse/HADOOP-16118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792010#comment-16792010 ]
Steve Loughran commented on HADOOP-16118:
-----------------------------------------
set capacity with no changes
{code}
bin/hadoop s3guard set-capacity s3a://hwdev-steve-ireland-new/
2019-03-13 18:51:24,597 [main] INFO s3guard.S3GuardTool (S3GuardTool.java:initMetadataStore(318)) - Metadata store DynamoDBMetadataStore{region=eu-west-1, tableName=hwdev-steve-ireland-new, tableArn=arn:aws:dynamodb:eu-west-1:980678866538:table/hwdev-steve-ireland-new} is initialized.
2019-03-13 18:51:24,625 [main] INFO s3guard.DynamoDBMetadataStore (DynamoDBMetadataStore.java:updateParameters(1548)) - Table capacity unchanged at read: 0, write: 0
Metadata Store Diagnostics:
ARN=arn:aws:dynamodb:eu-west-1:980678866538:table/hwdev-steve-ireland-new
description=S3Guard metadata store in DynamoDB
name=hwdev-steve-ireland-new
persist.authoritative.bit=true
read-capacity=0
region=eu-west-1
retryPolicy=ExponentialBackoffRetry(maxRetries=9, sleepTime=250 MILLISECONDS)
size=38314
status=ACTIVE
table={AttributeDefinitions: [{AttributeName: child,AttributeType: S}, {AttributeName: parent,AttributeType: S}],TableName: hwdev-steve-ireland-new,KeySchema: [{AttributeName: parent,KeyType: HASH}, {AttributeName: child,KeyType: RANGE}],TableStatus: ACTIVE,CreationDateTime: Thu Oct 11 18:51:14 BST 2018,ProvisionedThroughput: {LastIncreaseDateTime: Tue Oct 30 16:48:45 GMT 2018,LastDecreaseDateTime: Tue Oct 30 18:00:03 GMT 2018,NumberOfDecreasesToday: 0,ReadCapacityUnits: 0,WriteCapacityUnits: 0},TableSizeBytes: 38314,ItemCount: 248,TableArn: arn:aws:dynamodb:eu-west-1:980678866538:table/hwdev-steve-ireland-new,TableId: a7b0728a-f008-4260-b2a0-ff3dd03367d1,}
write-capacity=0
{code}
> S3Guard 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: Major
>
> 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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