Hyunsik Choi created TAJO-1185:
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Summary: Default timezone should be UTC+0 instead of depending on
JVM
Key: TAJO-1185
URL: https://issues.apache.org/jira/browse/TAJO-1185
Project: Tajo
Issue Type: Bug
Reporter: Hyunsik Choi
Fix For: 0.9.1
*Background*
Currently, Tajo allows users to set a single global timezone. Since the initial
design, the default timezone of a Tajo cluster depends on the JVM timezone if
there is no given timezone.
*Problem*
BTW, some of cluster nodes probably can have different timezones due to missed
or wrong setting, which actually is usual in practice. It is like to cause
wrong results because each task reads and processes a fragment of a single
table generated with a single timezone.
*Solution*
In my opinion, the solution is to force Tajo to use an specified timezone
instead of depending on JVM timezone. If there is no given timezone, GMT should
be used in Tajo cluster.
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