HeartSaVioR commented on a change in pull request #27755:
[SPARK-31004][WEBUI][SS] Show message for empty Streaming Queries instead of
empty timelines and histograms.
URL: https://github.com/apache/spark/pull/27755#discussion_r386222495
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/streaming/ui/StreamingQueryStatisticsPage.scala
##########
@@ -264,7 +265,12 @@ private[ui] class StreamingQueryStatisticsPage(parent:
StreamingQueryTab)
</tr>
</tbody>
</table>
- // scalastyle:on
+ } else {
+ <div id="empty-streaming-query-message">
+ <b>No visualization information available because there is no
batch.</b>
Review comment:
`there is no batch` - this might be slightly misleading if the query was
running with some batches and stopped, and restarted with checkpoint. I can't
think of good alternative though as of now...
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