Github user QiangCai commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1125#discussion_r126878337
--- Diff:
integration/spark-common/src/main/scala/org/apache/carbondata/spark/util/CommonUtil.scala
---
@@ -54,6 +53,12 @@ object CommonUtil {
val FIXED_DECIMAL = """decimal\(\s*(\d+)\s*,\s*(\-?\d+)\s*\)""".r
val FIXED_DECIMALTYPE = """decimaltype\(\s*(\d+)\s*,\s*(\-?\d+)\s*\)""".r
+ val timestampFormatter = new
SimpleDateFormat(CarbonProperties.getInstance
--- End diff --
SimpleDateFormat is not thread safe.
In mutiple threads, it will return wrong value.
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