[YARN-3087] [Collector implementation] the REST server (web server) for per-node collector does not work if it runs inside node manager

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: timelineserver
• Target Version/s: YARN-2928
• Hadoop Flags: Reviewed
• Assignee: Li Lu
• Reporter: Sangjin Lee
• Created: 22/Jan/15 18:55
• Updated: 30/Dec/20 17:13
• Resolved: 26/Feb/15 23:27

Description

This is related to YARN-3030. YARN-3030 sets up a per-node timeline aggregator and the associated REST server. It runs fine as a standalone process, but does not work if it runs inside the node manager due to possible collisions of servlet mapping.

Exception:

org.apache.hadoop.yarn.webapp.WebAppException: /v2/timeline: controller for v2 not found
	at org.apache.hadoop.yarn.webapp.Router.resolveDefault(Router.java:232)
	at org.apache.hadoop.yarn.webapp.Router.resolve(Router.java:140)
	at org.apache.hadoop.yarn.webapp.Dispatcher.service(Dispatcher.java:134)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)
	at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)
	at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)
	at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:900)
	at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:834)
	at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:795)
...

Issue Links

• is related to: YARN-3030 [Collector wireup] Set up timeline collector with basic request serving structure and lifecycle
• is related to: YARN-3033 [Collector wireup] Implement NM starting the standalone timeline collector daemon
• is related to: YARN-1142 MiniYARNCluster web ui does not work properly
• is related to: HADOOP-11728 Try merging USER_FACING_URLS and ALL_URLS
• relates to: YARN-3276 Refactor and fix null casting in some map cast for TimelineEntity (old and new) and fix findbug warnings
• relates to: YARN-10556 Web-app server does not work for Timeline V2