Azkaban 内置的任务类型支持 command、java
[atguigu@hadoop102 jobs]$ vim first.job
#first.job
type=command
command=echo 'this is my first job'
[atguigu@hadoop102 jobs]$ zip first.zip first.job
adding: first.job (deflated 15%)
[atguigu@hadoop102 jobs]$ ll
总用量 8
-rw-rw-r--. 1 atguigu atguigu 60 10 月 18 17:42 first.job -rw-rw-r--. 1 atguigu atguigu 219 10 月 18 17:43 first.zip
注意: 目前,Azkaban 上传的工作流文件只支持 xxx.zip 文件。zip 应包含 xxx.job 运行作业所需的文件和任何文件(文件名后缀必须以.job 结尾,否则无法识别)。作业名称在项目中必须是唯一的。
上传 zip 包
点击执行工作流
点击继续
[atguigu@hadoop102 jobs]$ vim start.job
#start.job
type=command
command=touch /opt/module/kangkang.txt
第二个 job:step1.job 依赖 start.job
[atguigu@hadoop102 jobs]$ vim step1.job
#step1.job
type=command
dependencies=start
command=echo "this is step1 job"
第三个 job:step2.job 依赖 start.job
[atguigu@hadoop102 jobs]$ vim step2.job
#step2.job
type=command
dependencies=start
command=echo "this is step2 job"
第四个 job:finish.job 依赖 step1.job 和 step2.job
[atguigu@hadoop102 jobs]$ vim finish.job
#finish.job
type=command
dependencies=step1,step2
command=echo "this is finish job"
[atguigu@hadoop102 jobs]$ zip jobs.zip start.job step1.job step2.job
finish.job
updating: start.job (deflated 16%)
adding: step1.job (deflated 12%)
adding: step2.job (deflated 12%)
adding: finish.job (deflated 14%)
思考: 将 student.txt 文件上传到 hdfs,根据所传文件创建外部表,再将表中查询到的结果写入到本地文件
使用 Azkaban 调度 java 程序
public class AzkabanTest {
public void run() throws IOException {
// 根据需求编写具体代码
FileOutputStream fos = new
FileOutputStream("/opt/module/azkaban/output.txt");
fos.write("this is a java progress".getBytes());
fos.close();
}
public static void main(String[] args) throws IOException {
AzkabanTest azkabanTest = new AzkabanTest();
azkabanTest.run();
}
}
[atguigu@hadoop102 azkaban]$ mkdir lib
[atguigu@hadoop102 azkaban]$ cd lib/
[atguigu@hadoop102 lib]$ ll
总用量 4 -rw-rw-r--. 1 atguigu atguigu 3355 10 月 18 20:55 azkaban-0.0.1-
SNAPSHOT.jar
[atguigu@hadoop102 jobs]$ vim azkabanJava.job
#azkabanJava.job
type=javaprocess
java.class=com.atguigu.azkaban.AzkabanTest
classpath=/opt/module/azkaban/lib/*
[atguigu@hadoop102 jobs]$ zip azkabanJava.zip azkabanJava.job
adding: azkabanJava.job (deflated 19%)
[atguigu@hadoop102 azkaban]$ pwd
/opt/module/azkaban
[atguigu@hadoop102 azkaban]$ ll
总用量 24
drwxrwxr-x. 2 atguigu atguigu 4096 10 月 17 17:14 azkaban-2.5.0
drwxrwxr-x. 10 atguigu atguigu 4096 10 月 18 17:17 executor
drwxrwxr-x. 2 atguigu atguigu 4096 10 月 18 20:35 jobs
drwxrwxr-x. 2 atguigu atguigu 4096 10 月 18 20:54 lib
-rw-rw-r--. 1 atguigu atguigu 23 10 月 18 20:55 output
drwxrwxr-x. 9 atguigu atguigu 4096 10 月 18 17:17 server
[atguigu@hadoop102 azkaban]$ cat output
this is a java progress
[atguigu@hadoop102 jobs]$ vim fs.job
#hdfs job
type=command
command=/opt/module/hadoop-2.7.2/bin/hadoop fs -mkdir /azkaban
[atguigu@hadoop102 jobs]$ zip fs.zip fs.job
adding: fs.job (deflated 12%)
MapReduce 任务依然可以使用 Azkaban 进行调度
[atguigu@hadoop102 jobs]$ vim mapreduce.job
#mapreduce job
type=command
command=/opt/module/hadoop-2.7.2/bin/hadoop jar /opt/module/hadoop-
2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar
wordcount /wordcount/input /wordcount/output
[atguigu@hadoop102 jobs]$ zip mapreduce.zip mapreduce.job
adding: mapreduce.job (deflated 43%)
[atguigu@hadoop102 jobs]$ vim student.sql
use default;
drop table student;
create table student(id int, name string)
row format delimited fields terminated by '\t';
load data local inpath '/opt/module/datas/student.txt' into table
student;
insert overwrite local directory '/opt/module/datas/student'
row format delimited fields terminated by '\t'
select * from student;
[atguigu@hadoop102 jobs]$ vim hive.job
#hive job
type=command
command=/opt/module/hive/bin/hive -f
/opt/module/azkaban/jobs/student.sql
[atguigu@hadoop102 student]$ cat /opt/module/datas/student/000000_0
1001 yangyang
1002 huihui
1003 banzhang
1004 pengpeng