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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13934) S3Guard: DynamoDBMetadataStore#move() could be throwing exception due to BatchWriteItem limits
Date Thu, 05 Jan 2017 21:22:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15802559#comment-15802559
] 

Mingliang Liu commented on HADOOP-13934:
----------------------------------------

Thanks for testing this with Hive and reporting this bug, [~rajesh.balamohan]. Thanks for
your review and offline discussion [~stevel@apache.org]. I'll file separate JIRA for fixing
the test. Thanks for your review and commit, [~cnauroth]!

> S3Guard: DynamoDBMetadataStore#move() could be throwing exception due to BatchWriteItem
limits
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13934
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13934
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: HADOOP-13345
>            Reporter: Rajesh Balamohan
>            Assignee: Mingliang Liu
>            Priority: Minor
>             Fix For: HADOOP-13345
>
>         Attachments: HADOOP-13934-HADOOP-13345.000.patch, HADOOP-13934-HADOOP-13345.001.patch,
HADOOP-13934-HADOOP-13345.002.patch, HADOOP-13934-HADOOP-13345.003.patch, HADOOP-13934-HADOOP-13345.004.patch,
HADOOP-13934-HADOOP-13345.005.patch
>
>
> When using {{DynamoDBMetadataStore}} with a insert heavy hive app , it started throwing
exceptions in {{DynamoDBMetadataStore::move}}. But just with the following exception, it is
relatively hard to debug on the real issue in DynamoDB side. 
> {noformat}
> Caused by: com.amazonaws.services.dynamodbv2.model.AmazonDynamoDBException: 1 validation
error detected: Value '{ddb-table-name-334=[com.amazonaws.dynamodb.v20120810.WriteRequest@ca1da583,
com.amazonaws.dynamodb.v20120810.WriteRequest@ca1fc7cd, com.amazonaws.dynamodb.v20120810.WriteRequest@ca4244e6,
com.amazonaws.dynamodb.v20120810.WriteRequest@ca2f58a9, com.amazonaws.dynamodb.v20120810.WriteRequest@ca3525f8,
> ...
> ...
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1529)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1167)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:948)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:661)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:635)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:618)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$300(AmazonHttpClient.java:586)
>         at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:573)
>         at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:445)
>         at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.doInvoke(AmazonDynamoDBClient.java:1722)
>         at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.invoke(AmazonDynamoDBClient.java:1698)
>         at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.batchWriteItem(AmazonDynamoDBClient.java:668)
>         at com.amazonaws.services.dynamodbv2.document.internal.BatchWriteItemImpl.doBatchWriteItem(BatchWriteItemImpl.java:111)
>         at com.amazonaws.services.dynamodbv2.document.internal.BatchWriteItemImpl.batchWriteItem(BatchWriteItemImpl.java:52)
>         at com.amazonaws.services.dynamodbv2.document.DynamoDB.batchWriteItem(DynamoDB.java:178)
>         at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.move(DynamoDBMetadataStore.java:351)
>         ... 28 more
> {noformat}



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