zhihao chen created FLINK-6610:
----------------------------------

             Summary: WebServer could not be created,when set the 
"jobmanager.web.submit.enable" to false
                 Key: FLINK-6610
                 URL: https://issues.apache.org/jira/browse/FLINK-6610
             Project: Flink
          Issue Type: Bug
          Components: Webfrontend
    Affects Versions: 1.3.0
            Reporter: zhihao chen
            Assignee: zhihao chen


WebServer could not be created,when set the "jobmanager.web.submit.enable" to 
false  
because the WebFrontendBootstrap will check uploadDir not allow be null 
this.uploadDir = Preconditions.checkNotNull(directory);
{code}
2017-05-17 15:15:46,938 ERROR 
org.apache.flink.runtime.webmonitor.WebMonitorUtils           - WebServer could 
not be created
java.lang.NullPointerException
        at 
org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:58)
        at 
org.apache.flink.runtime.webmonitor.utils.WebFrontendBootstrap.<init>(WebFrontendBootstrap.java:73)
        at 
org.apache.flink.runtime.webmonitor.WebRuntimeMonitor.<init>(WebRuntimeMonitor.java:359)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at 
org.apache.flink.runtime.webmonitor.WebMonitorUtils.startWebRuntimeMonitor(WebMonitorUtils.java:135)
        at 
org.apache.flink.runtime.clusterframework.BootstrapTools.createWebMonitorIfConfigured(BootstrapTools.java:242)
        at 
org.apache.flink.yarn.YarnApplicationMasterRunner.runApplicationMaster(YarnApplicationMasterRunner.java:352)
        at 
org.apache.flink.yarn.YarnApplicationMasterRunner$1.call(YarnApplicationMasterRunner.java:195)
        at 
org.apache.flink.yarn.YarnApplicationMasterRunner$1.call(YarnApplicationMasterRunner.java:192)
        at 
org.apache.flink.runtime.security.HadoopSecurityContext$1.run(HadoopSecurityContext.java:43)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
        at 
org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:40)
        at 
org.apache.flink.yarn.YarnApplicationMasterRunner.run(YarnApplicationMasterRunner.java:192)
        at 
org.apache.flink.yarn.YarnApplicationMasterRunner.main(YarnApplicationMasterRunner.java:116)
{code}



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