hue下載地址：https://github.com/cloudera/hue

hue學習文件地址：http://archive.cloudera.com/cdh5/cdh/5/hue-3.7.0-cdh5.3.6/manual.html

我目前使用的是hue-3.7.0-cdh5.3.6

hue（HUE=Hadoop User Experience）

Hue是一個開源的Apache Hadoop UI系統，由Cloudera Desktop演化而來，最後Cloudera公司將其貢獻給Apache基金會的Hadoop社群，它是基於Python Web框架Django實現的。

通過使用Hue我們可以在瀏覽器端的Web控制檯上與Hadoop叢集進行互動來分析處理資料，例如操作HDFS上的資料，執行MapReduce Job，執行Hive的SQL語句，瀏覽HBase資料庫等等。

hue特點：

　　能夠支援各個版本的hadoop
　　hue預設資料庫：sql lite
　　檔案瀏覽器：對資料進行增刪改查
　　hue下載src包進行一次編譯，二次編譯，在這用的是已經一次編譯

hue部署：

1、下載依賴包：yum源安裝

sudo yum -y install ant asciidoc cyrus-sasl-devel cyrus-sasl-gssapi gcc gcc-c++ krb5-devel libtidy libxml2-devel libxslt-devel mvn mysql mysql-devel openldap-devel python-devel sqlite-devel openssl-devel　　

sudo yum install ant asciidoc cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-plain gcc gcc-c++ krb5-devel libffi-devel libxml2-devel libxslt-devel make mysql mysql-devel openldap-devel python-devel sqlite-devel gmp-devel

2、解壓hue tar包

　　tar -zxvf hue-3.7.0-cdh5.3.6.tar.gz -C /指定的目錄

3、二次編譯

　　進入hue目錄：執行make apps  會出現個build目錄

錯誤：（centos 7會有）
error: static declaration of ‘X509_REVOKED_dup’ follows non-static declaration
static X509_REVOKED * X509_REVOKED_dup(X509_REVOKED *orig) {
^
In file included from /usr/include/openssl/ssl.h:156:0,
from OpenSSL/crypto/x509.h:17,
from OpenSSL/crypto/crypto.h:30,
from OpenSSL/crypto/crl.c:3:
/usr/include/openssl/x509.h:751:15: note: previous declaration of ‘X509_REVOKED_dup’ was here
X509_REVOKED *X509_REVOKED_dup(X509_REVOKED *rev);
^
error: command ‘gcc‘ failed with exit status 1

給下面兩個刪掉：/usr/include/openssl/x509.h -》751、752行
X509_REVOKED *X509_REVOKED_dup(X509_REVOKED *rev);
X509_REQ *X509_REQ_dup(X509_REQ *req);
##必須刪掉，註釋不行

4、進入到hue-3.7.0-cdh5.3.6/desktop/conf

配置hue.ini檔案:

secret_key=jFE93j;2[290-eiw.KEiwN2s3[‘d;/.q[eIW^y#e=+Iei*@Mn<qW5o
http_host=hadoop01.xningge.com
http_port=8888
time_zone=Asia/Shanghai

5、啟動hue

　　兩種方式

1-->cd build/env/bin---》./supervisor 
2-->build/env/bin/supervisor

 6、瀏覽器訪問hue

　　主機名+8888
　　建立使用者名稱和密碼

hue和hadoop的元件配置

1、hdfs的配置

　　在hdfs-site.xml中配置

<property>
　　<name>dfs.webhdfs.enabled</name>
　　<value>true</value>
</property>

　　在core-site.xml中配置

<property>
　　<name>hadoop.proxyuser.hue.hosts</name>
　　<value>*</value>
</property>
<property>
　　<name>hadoop.proxyuser.hue.groups</name>
　　<value>*</value>
</property>

2、重新啟動hdfs程序

　　sbin/start-yarn.sh

3、hue配置

　　[[hdfs_clusters]]
　　# HA support by using HttpFs

[[[default]]]
# Enter the filesystem uri
fs_defaultfs=hdfs://hadoop01.xningge.com:8020

# NameNode logical name.
## logical_name=

# Use WebHdfs/HttpFs as the communication mechanism.
# Domain should be the NameNode or HttpFs host.
# Default port is 14000 for HttpFs.
webhdfs_url=http://hadoop01.xningge.com:50070/webhdfs/v1

# This is the home of your Hadoop HDFS installation
hadoop_hdfs_home=/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6

# Use this as the HDFS Hadoop launcher script
hadoop_bin=/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/bin

# Change this if your HDFS cluster is Kerberos-secured
## security_enabled=false

# Default umask for file and directory creation, specified in an octal value.
## umask=022

# Directory of the Hadoop configuration
hadoop_conf_dir=/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/etc/hadoop

[[yarn_clusters]]

[[[default]]]
# Enter the host on which you are running the ResourceManager
resourcemanager_host=hadoop01.xningge.com

# The port where the ResourceManager IPC listens on
resourcemanager_port=8032

# Whether to submit jobs to this cluster
submit_to=True

# Resource Manager logical name (required for HA)
## logical_name=

# Change this if your YARN cluster is Kerberos-secured
## security_enabled=false

# URL of the ResourceManager API
resourcemanager_api_url=http://hadoop01.xningge.com:8088

# URL of the ProxyServer API
proxy_api_url=http://hadoop01.xningge.com:8088

# URL of the HistoryServer API
history_server_api_url=http://hadoop01.xningge.com:19888

eg:此配置都是偽分散式模式

4、啟動hue服務

　　build/env/bin/supervisor

hue與hive配置

1、hive配置

　　在hive-site.xml配置

<property>
　　<name>hive.server2.thrift.bind.host</name>
　　<value>hadoop01.xningge.com</value>
</property>
<property>
　　<name>hive.metastore.uris</name>
　　<value>hadoop01.xningge.com:9083</value>
</property>

2、啟動hive服務

　　bin/hiveserver2 &

　　bin/hive --service metastore &

3 、hue配置

　　修改hue.ini檔案

[beeswax]

# Host where HiveServer2 is running.
# If Kerberos security is enabled, use fully-qualified domain name (FQDN).
hive_server_host=hadoop01.xningge.com

# Port where HiveServer2 Thrift server runs on.
hive_server_port=10000

# Hive configuration directory, where hive-site.xml is located
hive_conf_dir=/opt/modules/cdh/hive-0.13.1-cdh5.3.6/conf

# Timeout in seconds for thrift calls to Hive service
server_conn_timeout=120

# Choose whether Hue uses the GetLog() thrift call to retrieve Hive logs.
# If false, Hue will use the FetchResults() thrift call instead.
## use_get_log_api=true

# Set a LIMIT clause when browsing a partitioned table.
# A positive value will be set as the LIMIT. If 0 or negative, do not set any limit.
## browse_partitioned_table_limit=250

# A limit to the number of rows that can be downloaded from a query.
# A value of -1 means there will be no limit.
# A maximum of 65,000 is applied to XLS downloads.
## download_row_limit=1000000

# Hue will try to close the Hive query when the user leaves the editor page.
# This will free all the query resources in HiveServer2, but also make its results inaccessible.
## close_queries=false

# Thrift version to use when communicating with HiveServer2
## thrift_version=5

hue與關係型資料庫配置

[librdbms]
# The RDBMS app can have any number of databases configured in the databases
# section. A database is known by its section name
# (IE sqlite, mysql, psql, and oracle in the list below).

[[databases]]
# sqlite configuration.
[[[sqlite]]] //注意這裡一定要取消註釋
# Name to show in the UI.
nice_name=SQLite

# For SQLite, name defines the path to the database.
name=/opt/modules/hue-3.7.0-cdh5.3.6/desktop/desktop.db

# Database backend to use.
engine=sqlite

# Database options to send to the server when connecting.
# https://docs.djangoproject.com/en/1.4/ref/databases/
## options={}

# mysql, oracle, or postgresql configuration.

　　##注意：這裡的資料不能改動，預設是hue的資料庫

[[[mysql]]] //注意這裡一定要取消註釋
# Name to show in the UI.
nice_name="My SQL DB"

# For MySQL and PostgreSQL, name is the name of the database.
# For Oracle, Name is instance of the Oracle server. For express edition
# this is ‘xe‘ by default.
name=sqoop//這個name是資料庫表名

# Database backend to use. This can be:
# 1. mysql
# 2. postgresql
# 3. oracle
engine=mysql

# IP or hostname of the database to connect to.
host=hadoop01.xningge.com

# Port the database server is listening to. Defaults are:
# 1. MySQL: 3306
# 2. PostgreSQL: 5432
# 3. Oracle Express Edition: 1521
port=3306

# Username to authenticate with when connecting to the database.
user=xningge

# Password matching the username to authenticate with when
# connecting to the database.
password=???

# Database options to send to the server when connecting.
# https://docs.djangoproject.com/en/1.4/ref/databases/
## options={}

hue與zookeeper配置

　　只需修改hue.ini檔案
　　host_ports=hadoop01.xningge.com:2181
　　啟動zookeeper：

hue與oozie的配置

修改：hue.ini檔案
[liboozie]
oozie_url=http://hadoop01.xningge.com:11000/oozie

　　如果沒有出來的：
　　修改：oozie-site.xml
　　<property>
　　　　<name>oozie.service.WorkflowAppService.system.libpath</name>
　　　　<value>/user/oozie/share/lib</value>
　　</property>

　　到oozie目錄下重新建立sharelib庫：
　　bin/oozie-setup.sh sharelib create -fs hdfs://hadoop01.xningge.com:8020 -locallib oozie-sharelib-4.0.0-cdh5.3.6-yarn.tar.gz
　　啟動oozie：bin/oozied.sh start

hue與hbase的配置

修改hue.ini檔案:
hbase_clusters=(Cluster|hadoop01.xningge.com:9090)
hbase_conf_dir=/opt/cdh_5.3.6/hbase-0.98.6-cdh5.3.6/conf
修改hbase-site.xml,新增以下配置：
<property>
　　<name>hbase.regionserver.thrift.http</name>
　　<value>true</value>
</property>
<property>
　　<name>hbase.thrift.support.proxyuser</name>
　　<value>true</value>
</property>
啟動hbase：
bin/start-hbase.sh
bin/hbase-daemon.sh start thrift

##hbase完全分散式
hbase_clusters=(Cluster1|hostname:9090,Cluster2|hostname:9090,Cluster3|hostname:9090)