[SPARK-20042] Buttons on executor log page don't work with spark.ui.reverseProxy=true

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.1.2, 2.2.0
• Component/s: Web UI
• Labels: reverse-proxy
• Assignee: Oliver Koeth
• Reporter: Oliver Koeth
• Created: 21/Mar/17 07:05
• Updated: 05/Apr/17 07:11
• Resolved: 05/Apr/17 07:10

Description

The "Load More" and "Load New" buttons on the executor log page generate full-path URLs to the "/log" REST end point in the worker. If the worker is served via master reverse proxy (spark.ui.reverseProxy=true), the calls go to the master web UI and return the HTML for the master page, instead of the expected REST data.

Successfully tested the following fix:
Use JavaScript in log-view.js that checks for a /proxy/<target>/ portion in the URL and prefixes that to the REST call, similar to the way this is done in executorspage.js

function getRESTEndPoint() {
var words = document.baseURI.split('/');
var ind = words.indexOf("proxy");
if (ind > 0)

{ return words.slice(0, ind + 2).join('/') + "/log"; }

return "/log"
}

function loadNew() {
$.ajax({
type: "GET",
url: getRESTEndPoint() + baseParams + "&byteLength=0",
... etc

Issue Links

• links to: [Github] Pull Request #17370 (okoethibm)