[jira] [Created] (HDFS-11994) Hadoop NameNode Web UI throws "Failed to retrieve data from /jmx?qry=java.lang:type=Memory, cause:" When running behind a proxy

["Sergey Bahchissaraitsev (JIRA)" <ji...@apache.org>]

Sergey Bahchissaraitsev created HDFS-11994:
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             Summary: Hadoop NameNode Web UI throws "Failed to retrieve data from /jmx?qry=java.lang:type=Memory, cause:" When running behind a proxy
                 Key: HDFS-11994
                 URL: https://issues.apache.org/jira/browse/HDFS-11994
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: ui
    Affects Versions: 2.8.0
         Environment: CentOS release 6.9 (Final)
OpenJDK version "1.8.0_131"
Hadoop 2.8.0
            Reporter: Sergey Bahchissaraitsev
            Priority: Minor


When running behind a proxy Hadoop Web UI throws the following exception because it tries to make Ajax requests to the base server URL:

{code:java}
Failed to retrieve data from /jmx?qry=java.lang:type=Memory, cause:
{code}

A good solution could be to adjust the Ajax URL based on the actual window URL using the jQuery Ajax "beforeSend" pre-request callback function: http://api.jquery.com/jquery.ajax/






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