Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/16166#discussion_r91147605
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/ProgressReporter.scala
---
@@ -78,6 +79,8 @@ trait ProgressReporter extends Logging {
// The timestamp we report an event that has no input data
private var lastNoDataProgressEventTime = Long.MinValue
+ private val timestampFormat = new
SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'") // ISO8601
--- End diff --
You need to set the timezone before using this format. Otherwise, the time
is based on your timezone. E.g.,
```
scala> new java.util.Date()
res7: java.util.Date = Tue Dec 06 10:48:00 PST 2016
scala> val timestampFormat = new
java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
timestampFormat: java.text.SimpleDateFormat =
java.text.SimpleDateFormat@5af7aed5
scala> timestampFormat.format(new java.util.Date())
res8: String = 2016-12-06T10:48:09.342Z
scala> val timestampFormat = new
java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
timestampFormat: java.text.SimpleDateFormat =
java.text.SimpleDateFormat@5af7aed5
scala> timestampFormat.setTimeZone(java.util.TimeZone.getTimeZone("UTC"))
scala> timestampFormat.format(new java.util.Date())
res10: String = 2016-12-06T18:48:20.048Z
```
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