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https://issues.apache.org/jira/browse/KYLIN-3788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16816284#comment-16816284
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ASF subversion and git services commented on KYLIN-3788:
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Commit e13f101cb52c75a5ebf581f490b7a603d0ba4289 in kylin's branch
refs/heads/master from zhaojintaozhao
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=e13f101 ]
KYLIN-3788 Modify the time conversion time zone of the kafka streaming access
* change simpleformat timezone of kafka streaming timestamp, such as
hour_start, day_start ...
* Modify the time conversion logic of the kafka data access; this fix solve
the problem that the streaming task time is different from the realtime due to
the time zone in kafka streaming.
* KYLIN-3788 This commit Changes SimpleDateformat to FastDateFormat because
SimpleDateFormat is forbidden API.
> Kylin's internal time zone conversions are various and confusing
> -----------------------------------------------------------------
>
> Key: KYLIN-3788
> URL: https://issues.apache.org/jira/browse/KYLIN-3788
> Project: Kylin
> Issue Type: Bug
> Components: REST Service, Web
> Affects Versions: v2.5.2
> Environment: Huawei FI
> Reporter: zhao jintao
> Assignee: zhao jintao
> Priority: Major
> Labels: TimeZone
>
> Hi, All team
> I found that Kylin has a variety of time zone conversions inside, which is
> confusing. In some code, the time zone is "GMT" when converting time, and
> some code uses the time zone specified in the configuration file
> ("TimeZone.getTimeZone("GMT")" );
> For Example:
> in CubingJob.java, use TimeZone from configuration file:
> format.setTimeZone(TimeZone.getTimeZone(
> config.getTimeZone())),
> but in TimeUtil.java, use GMT TimeZone:private static TimeZone gmt =
> TimeZone.getTimeZone("GMT")
>
> When inport data from Kafka Streaming Data，kylin generate "Data_Start",
> "Hour_Start" uses the GMT time zone, They are some time zones later than
> the real time. Why not use the time zone specified in the configuration file?
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