Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/718#discussion_r13566891
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala ---
@@ -25,20 +25,32 @@ import org.apache.spark.ui.{WebUIPage, UIUtils}
private[spark] class HistoryPage(parent: HistoryServer) extends
WebUIPage("") {
+ val pageSize = 20
+
def render(request: HttpServletRequest): Seq[Node] = {
- val appRows = parent.appIdToInfo.values.toSeq.sortBy { app =>
-app.lastUpdated }
- val appTable = UIUtils.listingTable(appHeader, appRow, appRows)
+ val requestedPage =
Option(request.getParameter("page")).getOrElse("1").toInt
+ val requestedFirst = (requestedPage - 1) * pageSize
+
+ val allApps = parent.getApplicationList()
+ val actualFirst = if (requestedFirst < allApps.size) requestedFirst
else 0
+ val apps = allApps.slice(actualFirst, Math.min(pageSize, allApps.size))
+
+ val actualPage = (actualFirst / pageSize) + 1
+ val last = Math.min(actualFirst + pageSize, allApps.size) - 1
+ val pageCount = allApps.size / pageSize + (if (allApps.size % pageSize
> 0) 1 else 0)
+
+ val appTable = UIUtils.listingTable(appHeader, appRow, apps)
val content =
<div class="row-fluid">
<div class="span12">
- <ul class="unstyled">
- <li><strong>Event Log Location: </strong>
{parent.baseLogDir}</li>
--- End diff --
Why was this removed? This is useful to check whether we specified the
correct logging directory when we started the history server.
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