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https://issues.apache.org/jira/browse/HIVE-22840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17041301#comment-17041301
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Jesus Camacho Rodriguez commented on HIVE-22840:
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[~ShubhamChaurasia], can you create a PR? Btw, it seems patch is missing the
removal of original {{CalendarUtils}}.
> Race condition in formatters of TimestampColumnVector and DateColumnVector
> ---------------------------------------------------------------------------
>
> Key: HIVE-22840
> URL: https://issues.apache.org/jira/browse/HIVE-22840
> Project: Hive
> Issue Type: Bug
> Components: storage-api
> Reporter: László Bodor
> Assignee: Shubham Chaurasia
> Priority: Major
> Attachments: HIVE-22840.1.patch, HIVE-22840.2.patch, HIVE-22840.patch
>
>
> HIVE-22405 added support for proleptic calendar. It uses java's
> SimpleDateFormat/Calendar APIs which are not thread-safe and cause race in
> some scenarios.
> As a result of those race conditions, we see some exceptions like
> {code:java}
> 1) java.lang.NumberFormatException: For input string: ""
> OR
> java.lang.NumberFormatException: For input string: ".821582E.821582E44"
> OR
> 2) Caused by: java.lang.ArrayIndexOutOfBoundsException: -5325980
> at
> sun.util.calendar.BaseCalendar.getCalendarDateFromFixedDate(BaseCalendar.java:453)
> at
> java.util.GregorianCalendar.computeFields(GregorianCalendar.java:2397)
> {code}
> This issue is to address those thread-safety issues/race conditions.
> cc [~jcamachorodriguez] [~abstractdog] [~omalley]
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