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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-16186) S3Guard: NPE in DynamoDBMetadataStore.lambda$listChildren
Date Thu, 28 Mar 2019 18:01:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-16186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16804149#comment-16804149
] 

Hudson commented on HADOOP-16186:
---------------------------------

FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #16299 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/16299/])
HADOOP-16186. S3Guard: NPE in DynamoDBMetadataStore.lambda$listChildren. (stevel: rev cfb01869038065defe50ab53d4d1eda4e6cdee33)
* (edit) hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/s3guard/TestDynamoDBMiscOperations.java
* (edit) hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java


> S3Guard: NPE in DynamoDBMetadataStore.lambda$listChildren
> ---------------------------------------------------------
>
>                 Key: HADOOP-16186
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16186
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.2.0, 3.1.2
>            Reporter: Steve Loughran
>            Assignee: Gabor Bota
>            Priority: Major
>             Fix For: 3.3.0
>
>
> Test run options. NPE in test teardown
> {code}
> -Dparallel-tests -DtestsThreadCount=6 -Ds3guard -Ddynamodb
> {code}
> If you look at the code, its *exactly* the place fixed in HADOOP-15827, a change which
HADOOP-15947 reverted. 
> There's clearly some codepath which can surface which is causing failures in some situations,
and having multiple patches switching between the && and || operators isn't going
to to fix it



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