HeartSaVioR commented on a change in pull request #30427:
URL: https://github.com/apache/spark/pull/30427#discussion_r527493073
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/streaming/ui/StreamingQueryStatisticsPage.scala
##########
@@ -126,6 +126,53 @@ private[ui] class StreamingQueryStatisticsPage(parent:
StreamingQueryTab)
<br />
}
+ def generateWatermark(
+ query: StreamingQueryUIData,
+ minBatchTime: Long,
+ maxBatchTime: Long,
+ jsCollector: JsCollector): Seq[Node] = {
+ // This is made sure on caller side but put it here to be defensive
+ require(query.lastProgress != null)
+ if (query.lastProgress.eventTime.containsKey("watermark")) {
+ val watermarkData = query.recentProgress.flatMap { p =>
+ val batchTimestamp = parseProgressTimestamp(p.timestamp)
+ val watermarkValue =
parseProgressTimestamp(p.eventTime.get("watermark"))
+ if (watermarkValue > 0L) {
+ // seconds
+ Some((batchTimestamp, ((batchTimestamp - watermarkValue) / 1000.0)))
+ } else {
+ None
+ }
+ }
+ val maxWatermark = watermarkData.maxBy(_._2)._2
+ val graphUIDataForWatermark =
+ new GraphUIData(
+ "watermark-gap-timeline",
+ "watermark-gap-histogram",
+ watermarkData,
+ minBatchTime,
+ maxBatchTime,
+ 0,
+ maxWatermark,
+ "seconds")
+ graphUIDataForWatermark.generateDataJs(jsCollector)
+
+ // scalastyle:off
+ <tr>
+ <td style="vertical-align: middle;">
+ <div style="width: 160px;">
+ <div><strong>Global Watermark Gap {SparkUIUtils.tooltip("The gap
between batch timestamp and global watermark for the batch.",
"right")}</strong></div>
+ </div>
+ </td>
+ <td
class="watermark-gap-timeline">{graphUIDataForWatermark.generateTimelineHtml(jsCollector)}</td>
+ <td
class="watermark-gap-timeline">{graphUIDataForWatermark.generateHistogramHtml(jsCollector)}</td>
Review comment:
My bad. Thanks for finding!
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