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https://issues.apache.org/jira/browse/HIVE-22840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shubham Chaurasia updated HIVE-22840:
-------------------------------------
    Attachment: HIVE-22840.patch

> 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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