Hue 3.7.0-1505 Release Notes

New in this Release

This release of Hue version 3.7 for the MapR distribution for Apache Hadoop includes the following features:

• MapR-SASL security support between Hue and the following components:
  • YARN on MapR 4.0.1 or greater
  • HttpFS 1.0-1504 and greater on MapR 4.0.1 or greater
  • Hive 0.13-1504 and Hive 1.0-1504 or greater on MapR 4.1 or greater
  • Oozie 4.0.1 or greater on MapR 4.0.1 or greater
  The ability to configure a file size restriction for the File Browser. The file size is specified by the file_size property in the hue.ini file. The default is 1.0 GB.
• In a new installation, Hue automatically determines the following values that you would otherwise configure in the hue.ini file:
  • resourcemanager_api_url
  • proxy_api_url
  • history_server_api_url
  • security_enabled
  • mechanism
• Support for multiple PAM modules. By default, Hue is configured to use PAM authentication for new installations.
• Support for Hive 1.0
• The ability to configure Hue to display Hive 1.0 logs by setting the use_get_log_api property to true in the [beeswax] section of the hue.ini file.

Fixes

Known Issues

• MapR-17229: The HBase examples provided in Hue 3.7 will not load in HBase 0.94.x because HBase 0.94.x uses a different thrift version than Hue 3.7.
• MapR-17314: When you run Hue 3.7 with a Hadoop version that is less than 2.5.1, the Job Browser hangs if you attempt to kill running YARN applications from the Job Browser window. This issue occurs with MapR version 4.0.1 as it uses Hadoop 2.4.1.
• MapR-18668: Hue does not work on RedHat/CentOS 7 when it is configured to use a MySQL database.

  When this issue occurs, the Control System displays the "Hue Down Alarm."

  Workaround:
  1. Run the following commands to install MariaDB and the Redhat 6 compatibility library:

     yum install mariadb
     rpm -ivh --nodeps http://yum.mariadb.org/$(rpm -qa mariadb|cut -d- -f2)/rhel7-amd64/rpms/MariaDB-5.5.41-centos7_0-x86_64-compat.rpm

  2. Run the following command to create a symlink for the Cyrus SASL library:

     ln -s /lib/64/libsasl2.so.3.0.0 /lib64/libsasl2.so.2

  3. Run the following command to reconfigure Hue:

     bash -c "./opt/mapr/hue/hue-3.7.0/build/env/bin/activate; /opt/mapr/hue/hue-3.7.0/build/env/bin/hue syncdb --noinput; /opt/mapr/hue/hue-3.7.0/build/env/bin/hue migrate" 

  4. Run the following command to restart Hue:

     maprcli node services -name hue -action restart -nodes <space separated list of hostnames>

• MapR-18823: Hue is unable to communicate with Hive when the hive-site.xml is empty and the hue.ini security settings are automatically configured to use MapR-SASL.

  Workaround: Add the following properties to hive-site.xml with values based on the configuration you require:

  • hive.metastore.sasl.enabled
  • hive.metastore.uris
  • hive.server2.authentication
  • hive.server2.enable.doAs (optional)
  • hive.server2.thrift.sasl.qop

  For example:

  <property>
  <name>hive.metastore.sasl.enabled</name>
  <value>true</value>
  <description>if true, the metastore thrift interface will be secured with SASL.</description>
  </property>
   
  <property>
   <name>hive.server2.authentication</name>
   <value>MAPRSASL</value>
   <description>authentication type</description>
  </property>
   
  <property>
   <name>hive.server2.enable.doAs</name>
   <value>false</value>
  </property>
   
  <property>
    <name>hive.server2.thrift.sasl.qop</name>
    <value>auth</value>
  <property>
   
  <property>
    <name>hive.metastore.uris</name>
    <value>thrift://localhost:9083</value>
    <description> URI where clients contact Hive metastore server </description>
  </property>