Atlas概述
Apache Atlas为组织提供开放式元数据管理和治理功能,用以构建其数据资产目录,对这些资产进行分类和管理,并为数据分析师和数据治理团队,提供围绕这些数据资产的协作功能。
Atlas架构原理
Atlas安装及使用
1)Atlas官网地址:https://atlas.apache.org/
2)文档查看地址:https://atlas.apache.org/0.8.4/index.html
3)下载地址:https://www.apache.org/dyn/closer.cgi/atlas/0.8.4/apache-atlas-0.8.4-sources.tar.gz
通常企业开发中选择集成外部的HBase+Solr,方便项目整体进行集成操作。
安装Solr5.2.1
1)Solr版本要求必须是5.2.1,见官网 2)Solr下载:http://archive.apache.org/dist/lucene/solr/5.2.1/solr-5.2.1.tgz 4)解压solr-5.2.1.tgz到/opt/module/目录下面 [kris@hadoop101 module]$ tar -zxvf solr-5.2.1.tgz -C /opt/module/ 5)修改solr-5.2.1的名称为solr [kris@hadoop101 module]$ mv solr-5.2.1/ solr 6)进入solr/bin目录,修改solr.in.sh文件 [kris@hadoop102 solr]$ vim bin/solr.in.sh #添加下列指令 ZK_HOST="hadoop101:2181,hadoop102:2181,hadoop103:2181" SOLR_HOST="hadoop101" # Sets the port Solr binds to, default is 8983 #可修改端口号 SOLR_PORT=8983 7)分发Solr,进行Cloud模式部署 [kris@hadoop101 module]$ xsync solr 提示:分发完成后,分别对hadoop102、hadoop103主机/opt/module/solr/bin下的solr.in.sh文件,修改为SOLR_HOST=对应主机名。 8)在三台节点上分别启动Solr,这个就是Cloud模式 [kris@hadoop101 solr]$ bin/solr start [kris@hadoop102 solr]$ bin/solr start [kris@hadoop103 solr]$ bin/solr start 提示:启动Solr前,需要提前启动Zookeeper服务。 9)Web访问8983端口,可指定三台节点中的任意一台IP,http://hadoop101:8983/solr/#/ 提示:UI界面出现Cloud菜单栏时,Solr的Cloud模式才算部署成功。 10)编写Solr启动停止脚本 (1)在hadoop101的/home/kris/bin目录下创建脚本 [kris@hadoop102 bin]$ vim s.sh 在脚本中编写如下内容
#!/bin/bash case $1 in "start"){ for i in hadoop101 hadoop102 hadoop103 do ssh $i "/opt/module/solr/bin/solr start" done };; "stop"){ for i in hadoop101 hadoop102 hadoop103 do ssh $i "/opt/module/solr/bin/solr stop" done };; esac
(2)增加脚本执行权限
[kris@hadoop101 bin]$ chmod +x s.sh
(3)Solr集群启动脚本
[kris@hadoop101 module]$ s.sh start
(4)Solr集群停止脚本
[kris@hadoop101 module]$ s.sh stop
安装Atlas0.8.4
1)解压apache-atlas-0.8.4-bin.tar.gz到/opt/module/目录下面 [kris@hadoop101 module]$ tar -zxvf apache-atlas-0.8.4-bin.tar.gz -C /opt/module/ 2)修改apache-atlas-0.8.4的名称为atlas [kris@hadoop101 module]$ mv apache-atlas-0.8.4/ atlas
Atlas集成外部框架
Atlas集成Hbase
1)进入/opt/module/atlas/conf/目录,修改配置文件
[kris@hadoop101 conf]$ vim atlas-application.properties
#修改atlas存储数据主机
atlas.graph.storage.hostname=hadoop101:2181,hadoop102:2181,hadoop103:2181
2)进入到/opt/module/atlas/conf/hbase路径,添加Hbase集群的配置文件到${Atlas_Home}
[kris@hadoop101 hbase]$
ln -s /opt/module/hbase/conf/ /opt/module/atlas/conf/hbase/
3)在/opt/module/atlas/conf/atlas-env.sh中添加HBASE_CONF_DIR
[kris@hadoop101 conf]$ vim atlas-env.sh
#添加HBase配置文件路径
export HBASE_CONF_DIR=/opt/module/atlas/conf/hbase/conf
Atlas集成Solr
1)进入/opt/module/atlas/conf目录,修改配置文件
[kris@hadoop101 conf]$ vim atlas-application.properties
#修改如下配置
atlas.graph.index.search.solr.zookeeper-url=hadoop101:2181,hadoop102:2181,hadoop103:2181
2)将Atlas自带的Solr文件夹拷贝到外部Solr集群的各个节点。
[kris@hadoop101 conf]$
cp -r /opt/module/atlas/conf/solr /opt/module/solr/
3)进入到/opt/module/solr路径,修改拷贝过来的配置文件名称为atlas_conf
[kris@hadoop101 solr]$ mv solr atlas_conf
4)在Cloud模式下,启动Solr(需要提前启动Zookeeper集群),并创建collection
[kris@hadoop101 solr]$ bin/solr create -c vertex_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2
[kris@hadoop101 solr]$ bin/solr create -c edge_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2
[kris@hadoop101 solr]$ bin/solr create -c fulltext_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2
-shards 3:表示该集合分片数为3
-replicationFactor 2:表示每个分片数都有2个备份
vertex_index、edge_index、fulltext_index:表示集合名称
注意:如果需要删除vertex_index、edge_index、fulltext_index等collection可以执行如下命令。
[kris@hadoop101 solr]$ bin/solr delete -c ${collection_name}
创建collection的详细如下:
[kris@hadoop101 solr]$ bin/solr create -c vertex_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2 Connecting to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Uploading /opt/module/solr/atlas_conf for config vertex_index to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Creating new collection 'vertex_index' using command: http://hadoop103:8983/solr/admin/collections?action=CREATE&name=vertex_index&numShards=3&replicationFactor=2&maxShardsPerNode=2&collection.configName=vertex_index { "responseHeader":{ "status":0, "QTime":5435}, "success":{"":{ "responseHeader":{ "status":0, "QTime":5094}, "core":"vertex_index_shard1_replica1"}}} [kris@hadoop101 solr]$ bin/solr create -c edge_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2 Connecting to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Uploading /opt/module/solr/atlas_conf for config edge_index to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Creating new collection 'edge_index' using command: http://hadoop103:8983/solr/admin/collections?action=CREATE&name=edge_index&numShards=3&replicationFactor=2&maxShardsPerNode=2&collection.configName=edge_index { "responseHeader":{ "status":0, "QTime":3280}, "success":{"":{ "responseHeader":{ "status":0, "QTime":3116}, "core":"edge_index_shard3_replica2"}}} [kris@hadoop101 solr]$ bin/solr create -c fulltext_index -d /opt/module/solr/atlas_conf -shards 3 -replicationFactor 2 Connecting to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Uploading /opt/module/solr/atlas_conf for config fulltext_index to ZooKeeper at hadoop101:2181,hadoop102:2181,hadoop103:2181 Creating new collection 'fulltext_index' using command: http://hadoop103:8983/solr/admin/collections?action=CREATE&name=fulltext_index&numShards=3&replicationFactor=2&maxShardsPerNode=2&collection.configName=fulltext_index { "responseHeader":{ "status":0, "QTime":3455}, "success":{"":{ "responseHeader":{ "status":0, "QTime":3115}, "core":"fulltext_index_shard3_replica1"}}}
5)验证创建collection成功
登录solr web控制台:http://hadoop101:8983/solr/#/~cloud 看到如下图显示:
Atlas集成Kafka
1)进入/opt/module/atlas/conf/目录,修改配置文件atlas-application.properties
[kris@hadoop101 conf]$ vim atlas-application.properties
######### Notification Configs #########
atlas.notification.embedded=false
atlas.kafka.zookeeper.connect=hadoop101:2181,hadoop102:2181,hadoop103:2181
atlas.kafka.bootstrap.servers=hadoop101:9092,hadoop102:9092,hadoop103:9092
atlas.kafka.zookeeper.session.timeout.ms=4000
atlas.kafka.zookeeper.connection.timeout.ms=2000
atlas.kafka.enable.auto.commit=true
2)启动Kafka集群,并创建Topic
[kris@hadoop101 kafka]$ bin/kafka-topics.sh --zookeeper hadoop101:2181,hadoop102:2181,hadoop103:2181 --create --replication-factor 3 --partitions 3 --topic _HOATLASOK
[kris@hadoop101 kafka]$ bin/kafka-topics.sh --zookeeper hadoop101:2181,hadoop102:2181,hadoop103:2181 --create --replication-factor 3 --partitions 3 --topic ATLAS_ENTITIES
Atlas其他配置
1)进入/opt/module/atlas/conf/目录,修改配置文件atlas-application.properties
[kris@hadoop101 conf]$ vim atlas-application.properties
######### Server Properties #########
atlas.rest.address=http://hadoop101:21000
# If enabled and set to true, this will run setup steps when the server starts
atlas.server.run.setup.on.start=false
######### Entity Audit Configs #########
atlas.audit.hbase.zookeeper.quorum=hadoop101:2181,hadoop102:2181,hadoop103:2181
2)记录性能指标,进入/opt/module/atlas/conf/路径,修改当前目录下的atlas-log4j.xml
[kris@hadoop101 conf]$ vim atlas-log4j.xml
#去掉如下代码的注释
<appender name="perf_appender" class="org.apache.log4j.DailyRollingFileAppender">
<param name="file" value="${atlas.log.dir}/atlas_perf.log" />
<param name="datePattern" value="'.'yyyy-MM-dd" />
<param name="append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d|%t|%m%n" />
</layout>
</appender>
<logger name="org.apache.atlas.perf" additivity="false">
<level value="debug" />
<appender-ref ref="perf_appender" />
</logger>
Atlas集成Hive
1)进入/opt/module/atlas/conf/目录,修改配置文件atlas-application.properties
[kris@hadoop101 conf]$ vim atlas-application.properties
######### Hive Hook Configs #######
atlas.hook.hive.synchronous=false
atlas.hook.hive.numRetries=3
atlas.hook.hive.queueSize=10000
atlas.cluster.name=primary
2)将atlas-application.properties配置文件加入到atlas-plugin-classloader-1.0.0.jar中
[kris@hadoop101 hive]$ zip -u /opt/module/atlas/hook/hive/atlas-plugin-classloader-0.8.4.jar /opt/module/atlas/conf/atlas-application.properties
[kris@hadoop101 hive]$ cp /opt/module/atlas/conf/atlas-application.properties /opt/module/hive/conf/
原因:这个配置不能参照官网,将配置文件考到hive的conf中。参考官网的做法一直读取不到atlas-application.properties配置文件,
看了源码发现是在classpath读取的这个配置文件,所以将它压到jar里面。
3)在/opt/module/hive/conf/hive-site.xml文件中设置Atlas hook
[kris@hadoop101 conf]$ vim hive-site.xml
<property>
<name>hive.exec.post.hooks</name>
<value>org.apache.atlas.hive.hook.HiveHook</value>
</property>
[kris@hadoop101 conf]$ vim hive-env.sh
#在tez引擎依赖的jar包后面追加hive插件相关jar包
export HIVE_AUX_JARS_PATH=/opt/module/hadoop-2.7.2/share/hadoop/common/hadoop-lzo-0.4.20.jar$TEZ_JARS,/opt/module/atlas/hook/hive/atlas-plugin-classloader-0.8.4.jar,/opt/module/atlas/hook/hive/hive-bridge-shim-0.8.4.jar
将Hive元数据导入Atlas
1)配置Hive环境变量
[kris@hadoop101 hive]$ sudo vim /etc/profile
#配置Hive环境变量
export HIVE_HOME=/opt/module/hive
export PATH=$PATH:$HIVE_HOME/bin/
[kris@hadoop101 hive]$ source /etc/profile
2)启动Hive,如果Hive能正常启动说明环境OK,就可以退出Hive客户端
[kris@hadoop101 hive]$ hive
hive (default)> show databases;
hive (default)> use gmall;
3)在/opt/module/atlas/路径,将Hive元数据导入到Atlas
[kris@hadoop101 atlas]$ bin/import-hive.sh
Using Hive configuration directory [/opt/module/hive/conf]
Log file for import is /opt/module/atlas/logs/import-hive.log
log4j:WARN No such property [maxFileSize] in org.apache.log4j.PatternLayout.
log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.PatternLayout.
输入用户名:admin;输入密码:admin
Enter username for atlas :- admin
Enter password for atlas :-
Hive Meta Data import was successful!!!
在Hive中创建test库,total_amount_result表:刷新页面即可实时展示出来:
hive (default)> create database test;
OK
Time taken: 0.034 seconds
hive (default)> use test;
OK
Time taken: 0.019 seconds
hive (test)> CREATE EXTERNAL TABLE total_amount_result(
> `order_id` int,
> `update_time` string,
> `deal_total_amount` double
> )row format delimited fields terminated by ','
> ;
OK
必须得跑个脚本任务atlas它才知道依赖关系,历史数据它不知道;
执行ads_gmv.sh脚本:
表之间的血缘图:
Lineage血缘图、Audits记录修改时间等详情信息
字段的血缘图:
Rest API使用(二次开发使用)
如果需要对Atlas进行二次开发,可以查看官网地址,https://atlas.apache.org/api/v2/index.html,根据官方API进行二次开发。