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https://issues.apache.org/jira/browse/HUDI-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17229830#comment-17229830
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steven zhang commented on HUDI-1029:
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ok，i see use DateTimeFormatter
> Use FastDateFormat for parsing and formating in TimestampBasedKeyGenerator
> ----------------------------------------------------------------------------
>
> Key: HUDI-1029
> URL: https://issues.apache.org/jira/browse/HUDI-1029
> Project: Apache Hudi
> Issue Type: Improvement
> Components: DeltaStreamer
> Reporter: steven zhang
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.5.2
>
>
> 1. in TimestampBasedKeyGenerator#getKey method, generate a HoodieKey will
> create a new SimpleDateFormat object,the dateformat object can be reused as
> class variable.
> 2. SimpleDateFormat is not thread safe,there is always potential thread safe
> problem.
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