最近一直在做公司数据湖的项目，我们用的是Apache正在incubating的开源项目atlas, atlas在管理元数据方面的功能十分强大。

这篇blog是介绍如何在centos中编译和安装atlas

Atlas的安装和编译

编译Atlas从git下载源码库

git clone https://git-wip-us.apache.org/repos/asf/incubator-atlas.git atlas

git checkout altas-0.7-incubating

切换到atlas文件夹

cd atlas

编译atlas

export MAVEN_OPTS="-Xmx1536m -XX:MaxPermSize=512m" && mvn clean install -DskipTests -Drat.numUnapprovedLicenses=100

skip Licenses

http://stackoverflow.com/questions/30181154/skipping-some-license-tests-in-maven

-Drat.numUnapprovedLicenses=100

Skip test cases

mvn install

Atlas编译要求

Atlas安装与配置mvn clean package -Pdist -DskipTests

编译完之后解压生成的tar包

tar -xzvf apache-atlas-${project.version}-bin.tar.gz

cd atlas-${project.version}

配置atlas参数

所有atlas参数配置都在conf文件夹下，这里主要修改atlas-application.properties的配置

配置kafka相关参数

atlas.notification.embedded=false

atlas.kafka.data=${sys:atlas.home}/data/kafka

atlas.kafka.zookeeper.connect=localhost:2181

atlas.kafka.bootstrap.servers=fsdn1:6667

配置Zookeeper相关参数

atlas.audit.hbase.zookeeper.quorum={zookeeeper_host}:2181

启动atlasbin/atlas_start.py

错误排查

Kafka启动失败

论坛提问： https://community.hortonworks.com/questions/67795/fail-to-start-kafka-when-starting-the-atlas.html

关闭Zookeeper，报错Connection Refused

开启Zookeeper，报错cannot assign requested address

Resolution:

修改Kafka相关参数：

atlas.notification.embedded=false

UI Keep Loading

如图：

Resolution：

根据论坛的回复，有两个解决方案，我用了第一种，就是下载hdp2.5然后把atlas web相关的文件夹覆盖掉0.7的文件夹

I have replaced web folder from Sandbox(HDP 2.5 with Atlas 0.7) and it worked fine.

下载HDP2.5，找到usr/hdp/2.5.0.0-1245/atlas文件夹，将其中的web相关文件夹copy and replace原本atlas的对应文件夹


Download the patch and git apply it – ATLAS-1199-PATCH

$ git apply --reject 0001-BUG-Sybase.patch

Checking patch source.php...

error: while searching for:

// 注释

// 以下为几行代码片断

error: patch failed: source.php:38

Applying patch source.php with 1 rejects...

Rejected hunk #1.

Full Authentication needed to access the Atlas API

Per default, Atlas uses Basic Authentication. So use your Atlas user and password, e.g. like

curl -s -u admin:admin http://atlas-server:21000/api/atlas/types

Out of Memory

https://cwiki.apache.org//confluence/display/MAVEN/OutOfMemoryError