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https://issues.apache.org/jira/browse/YARN-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14339233#comment-14339233
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Li Lu commented on YARN-3087:
-----------------------------
Hi [~djp], thanks for the comments! I agree that we may want to use generic
types to solve the problem. Similar code also appear in v1 timeline object
model, so maybe we'd like to fix both together? If that's the case we may open
a separate JIRA to trace this.
> [Aggregator implementation] the REST server (web server) for per-node
> aggregator does not work if it runs inside node manager
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-3087
> URL: https://issues.apache.org/jira/browse/YARN-3087
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Sangjin Lee
> Assignee: Li Lu
> Fix For: YARN-2928
>
> Attachments: YARN-3087-022315.patch, YARN-3087-022515.patch,
> YARN-3087-022615.patch
>
>
> 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:
> {noformat}
> 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)
> ...
> {noformat}
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