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Posted to common-dev@hadoop.apache.org by "Bilahari T H (JIRA)" <ji...@apache.org> on 2019/08/01 12:18:00 UTC
[jira] [Reopened] (HADOOP-16479) ABFS
FileStatus.getModificationTime returns localized time instead of UTC
[ https://issues.apache.org/jira/browse/HADOOP-16479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bilahari T H reopened HADOOP-16479:
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> ABFS FileStatus.getModificationTime returns localized time instead of UTC
> -------------------------------------------------------------------------
>
> Key: HADOOP-16479
> URL: https://issues.apache.org/jira/browse/HADOOP-16479
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.2.0
> Reporter: Joan Sala Reixach
> Assignee: Bilahari T H
> Priority: Major
> Attachments: HADOOP-16479-001.patch, image-2019-07-31-18-21-53-023.png, image-2019-07-31-18-23-37-349.png
>
>
> As per javadoc, the method FileStatus.getModificationTime() should return the time in UTC, but it returns the time in the JVM timezone.
> The issue origins in AzureBlobFileSystemStore.getFileStatus() itself, since parseLastModifiedTime() returns a wrong date. I have created a file in Azure Data Lake Gen2 and when I look at it through the Azure Explorer it shows the correct modification time, but the method returns -2 hours time (I am in CET = UTC+2).
> Azure Explorer last modified time:
> !image-2019-07-31-18-21-53-023.png|width=460,height=45!
> AbfsClient parseLastModifiedTime:
> !image-2019-07-31-18-23-37-349.png|width=459,height=284!
> It shows 15:21 CEST as utcDate, when it should be 15:21 UTC, which results in the 2 hour loss.
> DateFormat.parse uses a localized calendar to parse dates which might be the source of the issue.
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