Hue hdfs file download

Hue hdfs file download

hue hdfs file download

taniaarraindegia.esy.es › lecture › cloud-storage-big-data-analysis-sql › browsin. Through Hue, the user can interact with HDFS and MapReduce applications. windows OS specific files which does not come with default download of hadoop. SOH (start of heading) or its Seq equivalent Ctrl + A is the default field delimiter used by Hive. And all the \N represent NULL. Solution to this. hue hdfs file download

How to deploy Hue on HDFS with Namenode HA

Follow the instructions below to deploy Hue on Hadoop Distributed File System (HDFS) with NameNode High Availability (HA).


1. Install Hadoop HttpFS on the Hue server.

[root@admin ~]# yum install hadoop-httpfs


2. Create a link for the hadoop-httpfs service.

[root@admin ~]# ln -s /usr/phd//etc/rc.d/init.d/hadoop-httpfs /etc/init.d/hadoop-httpfs [root@admin ~]# ls -l /etc/init.d/hadoop-httpfs lrwxrwxrwx 1 root root 48 Oct 9 /etc/init.d/hadoop-httpfs -> /usr/phd//etc/rc.d/init.d/hadoop-httpfs

3. Make changes to the file /usr/phd//etc/rc.d/init.d/hadoop-httpfs.


Important Note: Search the word "hdp" and replace it with "phd".

export HADOOP_HOME="/usr/phd/current/hadoop-$SERVICE_NAME/../hadoop-httpfs" ln -s /usr/phd/current/hadoop-httpfs/webapps ${DEPLOYMENT_TARGET}/
4. Add two "export CATALINA_" lines to the function stop().
stop() { log_success_msg "Stopping ${DESC}: " export CATALINA_BASE=${CATALINA_BASE:-"/var/lib/hadoop-httpfs/tomcat-deployment"} export CATALINA_PID="$PIDFILE" # FIXME: workaround for BIGTOP

5. Comment out the following line in file /usr/phd//hadoop-httpfs/sbin/taniaarraindegia.esy.es.

export CATALINA_BASE=/etc/hadoop-httpfs/tomcat-deployment

6. Create a link for taniaarraindegia.esy.es.

[root@admin ]# mkdir /usr/phd/current/hadoop-httpfs/libexec [root@admin ]# ln -s /usr/phd/current/hadoop-client/libexec/taniaarraindegia.esy.es /usr/phd/current/hadoop-httpfs/libexec/taniaarraindegia.esy.es

7. Modify /etc/hadoop-httpfs/conf/taniaarraindegia.esy.es on the Hue server to configure HttpFS to talk to the cluster.

<property> <name>taniaarraindegia.esy.es</name> <value>*</value> </property> <property> <name>taniaarraindegia.esy.es</name> <value>*</value> </property>

8. Modify taniaarraindegia.esy.es on the Ambari web UI by adding the following properties. Restart the HDFS is needed for the changes to take effect.

<property> <name>taniaarraindegia.esy.es</name> <value>*</value> </property> <property> <name>taniaarraindegia.esy.es</name> <value>*</value> </property>

9. On the Hue server, modify the subsection [hadoop][[hdfs_clusters]][[[default]]] in /etc/hue/conf/taniaarraindegia.esy.es.
 

fs_defaultfs

the taniaarraindegia.esy.estFS property in taniaarraindegia.esy.es

webhdfs_url

URL to HttpFS server


Example:

fs_defaultfs=hdfs://phda webhdfs_url=taniaarraindegia.esy.es

Start the hadoop-httpfs service.

[root@admin conf]# service hadoop-httpfs start

Restart the Hue service.

[root@admin conf]# service hue restart
Источник: [taniaarraindegia.esy.es]

Hue hdfs file download

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