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From "Kuhu Shukla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-3961) Tez UI web.xml tries to reach out to java.sun.com for validation after moving to jetty-9
Date Mon, 25 Jun 2018 21:05:00 GMT
Kuhu Shukla created TEZ-3961:
--------------------------------

             Summary: Tez UI web.xml tries to reach out to java.sun.com for validation after
moving to jetty-9
                 Key: TEZ-3961
                 URL: https://issues.apache.org/jira/browse/TEZ-3961
             Project: Apache Tez
          Issue Type: Bug
    Affects Versions: 0.9.1
            Reporter: Kuhu Shukla
            Assignee: Kuhu Shukla


Tez UI can throw a 503 error when hosted on a server that cannot reach public IPs like java.sun.com
which are listed as servers for DTDs in web.xml.  This behavior change comes from moving to
jetty 9 (Tez and Hadoop 3.0) which removed provided schemas that were being shipped with earlier
versions. It is suboptimal even in cases where public IPs are accessible to fetch the DTD
for a very very simple web.xml file. We can choose to either remove the DTD validation or
add dependency explicitly to org.eclipse.jetty.toolchain ยป jetty-osgi-servlet-api to allow
for this jetty change to not affect the behavior of tez-ui.



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