liucht-inspur opened a new pull request #25994: [SPARK-29323][WEBUI] Add 
tooltip for The Executors Tab's column names in the Spark history server Page
   ### What changes were proposed in this pull request?
   This PR is Adding tooltip for The Executors Tab's column names include RDD 
Blocks, Disk Used,Cores, Activity Tasks, Failed Tasks , Complete Tasks, Total 
Tasks in the history server Page.
   I have modify the following code in executorspage-template.html
   <th>RDD Blocks</th>
   <th>Disk Used</th>
   <th>Active Tasks</th>
   <th>Failed Tasks</th>
   <th>Complete Tasks</th>
   <th>Total Tasks</th>
   <th><span data-toggle="tooltip" data-placement="top" title="RDD Blocks">RDD 
   <th><span data-toggle="tooltip" data-placement="top" title="Disk Used">Disk 
   <th><span data-toggle="tooltip" data-placement="top" 
   <th><span data-toggle="tooltip" data-placement="top" title="Active 
Tasks">Active Tasks</span></th>
   <th><span data-toggle="tooltip" data-placement="top" title="Failed 
Tasks">Failed Tasks</span></th>
   <th><span data-toggle="tooltip" data-placement="top" title="Complete 
Tasks">Complete Tasks</span></th>
   <th><span data-toggle="tooltip" data-placement="top" title="Total 
Tasks">Total Tasks</span></th>
   ### Why are the changes needed?
   the spark Executors of history Tab page, the Summary part shows the line in 
the list of title, but format is irregular.
   Some column names have tooltip, such as Storage Memory, Task Time(GC Time), 
Input, Shuffle Read,
   Shuffle Write and Blacklisted, but there are still some list names that have 
not tooltip. They are RDD Blocks, Disk Used,Cores, Activity Tasks, Failed Tasks 
, Complete Tasks and Total Tasks. oddly, Executors section below,All the column 
names Contains the column names above have tooltip .
   It's important for open source projects to have consistent style and 
user-friendly UI, and I'm working on keeping it consistent And more 
   ### Does this PR introduce any user-facing change?
   ### How was this patch tested?
   Manual tests for Chrome, Firefox and Safari
   Authored-by: liucht-inspur <>
   Signed-off-by: liucht-inspur <>

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