Hue Known Issues

HTTPD 2.4 breaks Hue high availability with SSLProxyPeerCN on

In HTTPD 2.2 and earlier versions, SSLProxyPeerCN is off. In HTTPD 2.4, SSLProxyPeerCN is turned on. This breaks Hue high availability and throws a proxy error.

Affected Versions: CDH 5.11.0 only

Workaround: Disable SSLProxyCheckPeerCN and SSLProxyCheckPeerName in httpd.conf:
  1. Log on to Cloudera Manager and go to Hue > Configuration.
  2. Search for Load Balancer Advanced Configuration Snippet (Safety Valve) for httpd.conf.
  3. Disable proxy peer checks by entering:
    SSLProxyCheckPeerCN off
    SSLProxyCheckPeerName off
  4. Save changes and restart Hue.

Bad Request (400)

Hue 3.12 (in CDH 5.10) added a security improvement to prevent HTTP Host header attacks. This change can cause some users to see "Bad Request (400)" when opening the Hue Web UI because the domain is not recognized. See the community thread, New Cloudera installation: Hue - Bad Request (400).

Affected Versions: CDH 5.10 and higher

Bug: HUE-5816

Workaround: Configure allowed_hosts in the safety-valve, Hue Service Advanced Configuration Snippet (Safety Valve) for hue_safety_valve.ini:
[desktop]
allowed_hosts=*

Login Error with Port 8888 on some SLES 11.4 Deployments

Some users with SLES 11.4 may experience a Hue login error when using port 8888–specifically, users with CDH 5.9 and higher on SLES 11.4 with Chrome or Firefox.

Affected Versions: CDH 5.9 and higher

Bug: HUE-5717

Workaround: Use port 8889 or set the safety-valve, Hue Service Advanced Configuration Snippet (Safety Valve) for hue_safety_valve.ini:
[desktop]
secure_content_type_nosniff=false

Installing Hue on Debian/Ubuntu may require manual restart

When you install or upgrade Hue from packages on Debian/Ubuntu, the system tries to restart the Hue service in between updating the apps. This causes Hue to start with an interface that could be missing some apps.

Affected Versions: CDH 5 Beta 2

Bug: None

Workaround: Restart Hue once the installation/upgrade is complete: sudo service hue restart.

Hue can hang or fail when SQLite database is overloaded

Hue can hang or fail because the SQLite database is overloaded, returning the error, database is locked.

Affected Versions: CDH 5.2.x and higher

Bug: None

Workaround: Do one of the following:

Importing Hue data to MySQL can cause columns to truncate

Importing Hue data to MySQL can cause columns to be truncated on import, displaying Warning: Data truncated for column 'name' at row 1

Affected Versions: CDH 4.6.x and higher

Bug: None

Workaround: In the /etc/my.cnf file, configure the database operation to fail rather than truncate data:
[mysqld]
sql_mode=STRICT_ALL_TABLES 

Problems implementing Sqoop 2 version 1.99.5

There are currently two obstacles when implementing Sqoop2:

  1. Occasionally the listings pages have Unknown as a title.

    Workaround: Refresh the page.

  2. Autocompletes do not work.

    Workaround: None.

Hue does not support the Spark App

Hue does not currently support the Spark application.