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From "Michael Davie (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-21702) ambari-agent registration fails due to invalid public hostname
Date Fri, 11 Aug 2017 15:27:00 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-21702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Davie updated AMBARI-21702:
-----------------------------------
    Description: 
* The script {{hostname.py}} (https://github.com/apache/ambari/blob/79cca1c7184f1661236971dac70d85a83fab6c11/ambari-agent/src/main/python/ambari_agent/hostname.py)
attempts to retrieve a host's public hostname from AWS from the location http://169.254.169.254/latest/meta-data/public-hostname.
* In a non-AWS network with a network proxy present, this request can return an HTML login
or redirect page, rather than the expected hostname value.
* The script does not validate the length or format of the returned value, and submits the
returned HTML code to ambari-server as the public hostname.
* Registration of the host fails, as the submitted HTML code exceeds the size of the hostname
field in the server's database (255 characters).

* A functioning manual workaround has been published at https://community.hortonworks.com/articles/42872/why-ambari-host-might-have-different-public-host-n.html.
* An alternative workaround is to set the default gateway of the nodes to the IP address of
the Ambari server.

  was:
* The script {{hostname.py}} (https://github.com/apache/ambari/blob/79cca1c7184f1661236971dac70d85a83fab6c11/ambari-agent/src/main/python/ambari_agent/hostname.py)
attempts to retrieve a host's public hostname from AWS from the location http://169.254.169.254/latest/meta-data/public-hostname.
* In a non-AWS network with a network proxy present, this request can return an HTML login
or redirect page, rather than the expected hostname value.
* The script does not validate the length or format of the returned value, and submits the
returned HTML code to ambari-server as the public hostname.
* Registration of the host fails, as the submitted HTML code exceeds the size of the hostname
field in the server's database (255 characters).

A functioning manual workaround has been published at https://community.hortonworks.com/articles/42872/why-ambari-host-might-have-different-public-host-n.html.


> ambari-agent registration fails due to invalid public hostname
> --------------------------------------------------------------
>
>                 Key: AMBARI-21702
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21702
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-agent
>    Affects Versions: 2.6.0
>         Environment: Networks with an active web proxy
>            Reporter: Michael Davie
>
> * The script {{hostname.py}} (https://github.com/apache/ambari/blob/79cca1c7184f1661236971dac70d85a83fab6c11/ambari-agent/src/main/python/ambari_agent/hostname.py)
attempts to retrieve a host's public hostname from AWS from the location http://169.254.169.254/latest/meta-data/public-hostname.
> * In a non-AWS network with a network proxy present, this request can return an HTML
login or redirect page, rather than the expected hostname value.
> * The script does not validate the length or format of the returned value, and submits
the returned HTML code to ambari-server as the public hostname.
> * Registration of the host fails, as the submitted HTML code exceeds the size of the
hostname field in the server's database (255 characters).
> * A functioning manual workaround has been published at https://community.hortonworks.com/articles/42872/why-ambari-host-might-have-different-public-host-n.html.
> * An alternative workaround is to set the default gateway of the nodes to the IP address
of the Ambari server.



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