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https://issues.apache.org/jira/browse/HADOOP-16118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792008#comment-16792008
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Steve Loughran commented on HADOOP-16118:
-----------------------------------------
bucket-info reports read-capacity == write-capacity == 0
{code}
Location: eu-west-1
Filesystem s3a://hwdev-steve-ireland-new is using S3Guard with store
DynamoDBMetadataStore{region=eu-west-1, tableName=hwdev-steve-ireland-new,
tableArn=arn:aws:dynamodb:eu-west-1:980678866538:table/hwdev-steve-ireland-new}
Authoritative S3Guard: fs.s3a.metadatastore.authoritative=false
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
The "magic" committer is supported
S3A Client
Endpoint: fs.s3a.endpoint=s3-eu-west-1.amazonaws.com
Encryption: fs.s3a.server-side-encryption-algorithm=none
Input seek policy: fs.s3a.experimental.input.fadvise=normal
Delegation token support is disabled
{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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