[ 
https://issues.apache.org/jira/browse/YARN-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eric Yang updated YARN-8734:
----------------------------
    Comment: was deleted

(was:  [~gsaha], I see what you mean.  It will be corrected in the next patch.
[~billie.rinaldi] [~gsaha], there appears to be a serialization problem when 
service level object use the same keyword as the component level.   When I 
changed to use keyword "dependencies", Jersey fails with a generic error 
message:

{code}
2018-09-26 21:17:33,388 WARN 
org.apache.hadoop.yarn.webapp.GenericExceptionHandler: INTERNAL_SERVER_ERROR
javax.ws.rs.WebApplicationException
        at 
com.sun.jersey.server.impl.uri.rules.TerminatingRule.accept(TerminatingRule.java:66)
        at 
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
        at 
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
        at 
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
        at 
com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772)
        at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:89)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:941)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:875)
        at 
org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebAppFilter.doFilter(RMWebAppFilter.java:179)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:829)
        at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
        at 
com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:119)
        at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:133)
        at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:130)
        at 
com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:203)
        at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:130)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at 
org.apache.hadoop.security.http.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:57)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at 
org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:644)
        at 
org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:592)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at 
org.apache.hadoop.security.http.CrossOriginFilter.doFilter(CrossOriginFilter.java:98)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at 
org.apache.hadoop.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1610)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
        at org.eclipse.jetty.server.Server.handle(Server.java:534)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
        at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
        at 
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
        at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
        at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
        at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
        at java.lang.Thread.run(Thread.java:748)
{code}

Do we want to choose another keyword other than "dependencies"?  I also 
verified the ServiceMonitor is registered in serviceInit, it happens prior to 
start() method.  Therefore, app master does not get terminated by 
yarn.am.liveness-monitor.expiry-interval-ms setting, when dependencies are not 
satisfied.)

> Readiness check for remote service belongs to the same user
> -----------------------------------------------------------
>
>                 Key: YARN-8734
>                 URL: https://issues.apache.org/jira/browse/YARN-8734
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: yarn-native-services
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Major
>         Attachments: Component_dependencies.png, Dependency check vs.pdf, 
> Service_dependencies.png, YARN-8734.001.patch, YARN-8734.002.patch, 
> YARN-8734.003.patch, YARN-8734.004.patch, YARN-8734.005.patch
>
>
> When a service is deploying, there can be remote service dependency.  It 
> would be nice to describe ZooKeeper as a dependent service, and the service 
> has reached a stable state, then deploy HBase.



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