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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15833) ITestS3GuardToolDynamoDB fails intermittently in parallel runs
Date Tue, 09 Oct 2018 14:33:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16643509#comment-16643509
] 

Steve Loughran commented on HADOOP-15833:
-----------------------------------------

increasing test timeout causes the prune command to fail with too many attempts 
{code}
[ERROR] testPruneCommandCLI(org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolDynamoDB)  Time
elapsed: 193.269 s  <<< ERROR!
org.apache.hadoop.fs.s3a.AWSServiceThrottledException: Max retries during batch write exceeded
(9) for DynamoDB. This may be because the write threshold of DynamoDB is set too low.: Throttling
(Service: S3Guard; Status Code: 503; Error Code: Throttling; Request ID: n/a)
	at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.retryBackoffOnBatchWrite(DynamoDBMetadataStore.java:806)
	at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.processBatchWriteRequest(DynamoDBMetadataStore.java:765)
	at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.prune(DynamoDBMetadataStore.java:1030)
	at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.prune(DynamoDBMetadataStore.java:993)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase.testPruneCommand(AbstractS3GuardToolTestBase.java:271)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase.testPruneCommandCLI(AbstractS3GuardToolTestBase.java:286)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
Caused by: com.amazonaws.AmazonServiceException: Throttling (Service: S3Guard; Status Code:
503; Error Code: Throttling; Request ID: n/a)
	at org.apache.hadoop.fs.s3a.s3guard.DynamoDBMetadataStore.retryBackoffOnBatchWrite(DynamoDBMetadataStore.java:797)
{code}

> ITestS3GuardToolDynamoDB fails intermittently in parallel runs
> --------------------------------------------------------------
>
>                 Key: HADOOP-15833
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15833
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3, test
>    Affects Versions: 3.2.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>
> intermittent failure of a pair of {{ITestS3GuardToolDynamoDB}} tests in parallel runs.
They don't seem to fail in sequential mode.



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