1.You
can execute below api to get a list of hosts in your cluster in file
hostcluster.txt # curl -s -u admin:admin
http://ambari:8080/api/v1/hosts|grep host_name|sed -n
's/.*"host_name" :
"\([^\"]*\)".*/\1/p'>hostcluster.txt 2. In the loop you can
write the api which need to run on the nodes : ~~~ while read line ; do j=$line mkdir -p $j done < hostcluster.txt ~~~
-admin:admin : username:password -
Above loop will take each entries from file hostcluster.txt and need to
execute the. 3. In order to install the clients you can use below
API’s. Below API’s will install only 5
clients as mentioned below : ####### Installing HDFS_CLIENT, YARN_CLIENT,
ZOOKEEPER_CLIENT and MAPREDUCE2_CLIENT on "HOSTANAME" as following: +++++++++++ # curl -u admin:admin -H "X-Requested-By:ambari"
-i -X POST -d '{"RequestInfo":{"context":"Install HDFS
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"HDFS_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j # curl -u admin:admin -H "X-Requested-By:ambari"
-i -X POST -d '{"RequestInfo":{"context":"Install YARN
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"YARN_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j # curl -u admin:admin -H "X-Requested-By:ambari"
-i -X POST -d '{"RequestInfo":{"context":"Install
MapReduce2
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"MAPREDUCE2_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j # curl -u admin:admin -H "X-Requested-By:ambari"
-i -X POST -d '{"RequestInfo":{"context":"Install
ZooKeeper
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"ZOOKEEPER_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j +++++++++++ Where,
-admin:admin : Is username and password for
ambary server. -ambari-hostname : hostname of your ambari server
-$j : is
the variable which will substitute each value from hostcluster.txt NOTE : If you want to add more clients such as spark/oozie etc you
need to change below value from above command : -"context":"Install ZooKeeper
Client" <-- Modify as per the client - component_name":"MAPREDUCE2_CLIENT" <-- Modify as per the client you want to
install 3 Below API’s is to pull the configurations for all the
clients which are installed in step 2 : . ####### Initialize the HDFS_CLIENT, YARN_CLIENT, ZOOKEEPER_CLIENT
and MAPREDUCE2_CLIENT clients on $j +++++++++++ curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install HDFS
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"HDFS"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/HDFS_CLIENT?HostRoles/state=INIT curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install YARN
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"YARN"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/YARN_CLIENT?HostRoles/state=INIT curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install
MapReduce2
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"MAPREDUCE2"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/MAPREDUCE2_CLIENT?HostRoles/state=INIT # curl -u admin:admin -H "X-Requested-By:ambari"
-i -X PUT -d '{"RequestInfo":{"context":"Install
ZooKeeper
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"ZOOKEEPER"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/ZOOKEEPER_CLIENT?HostRoles/state=INIT +++++++++++ Where,
-ambari-hostname : hostname of your ambari server
-$j : is
the variable which will take each value from hostcluster.txt If you have added more clients in step 2 then you need to add more
commands in step 3 based on the clients installed in step 2. Below is the scrip to
install : HDFS_CLIENT, YARN_CLIENT, ZOOKEEPER_CLIENT and MAPREDUCE2_CLIENT
1.Create
a .sh file and copy below contents: # vi script.sh ~~~~ curl -s -u admin:admin http://ambari:8080/api/v1/hosts|grep
host_name|sed -n 's/.*"host_name" :
"\([^\"]*\)".*/\1/p'>hostcluster.txt while read line ; do j=$line mkdir -p $j curl -u admin:admin -H "X-Requested-By:ambari" -i
-X POST -d '{"RequestInfo":{"context":"Install HDFS
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"HDFS_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j curl -u admin:admin -H "X-Requested-By:ambari" -i
-X POST -d '{"RequestInfo":{"context":"Install YARN
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"YARN_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j curl -u admin:admin -H "X-Requested-By:ambari" -i
-X POST -d '{"RequestInfo":{"context":"Install
MapReduce2
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"MAPREDUCE2_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j curl -u admin:admin -H "X-Requested-By:ambari" -i
-X POST -d '{"RequestInfo":{"context":"Install
ZooKeeper
Client"},"Body":{"host_components":[{"HostRoles":{"component_name":"ZOOKEEPER_CLIENT"}}]}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts?Hosts/host_name=$j curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install HDFS
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"HDFS"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/HDFS_CLIENT?HostRoles/state=INIT curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install YARN
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"YARN"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/YARN_CLIENT?HostRoles/state=INIT curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install
MapReduce2
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"MAPREDUCE2"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/MAPREDUCE2_CLIENT?HostRoles/state=INIT curl -u admin:admin -H "X-Requested-By:ambari" -i
-X PUT -d '{"RequestInfo":{"context":"Install ZooKeeper
Client","operation_level":{"level":"HOST_COMPONENT","cluster_name":"rest","host_name":"$j","service_name":"ZOOKEEPER"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}'
http://ambari-hostname:8080/api/v1/clusters/rest/hosts/$j/host_components/ZOOKEEPER_CLIENT?HostRoles/state=INIT done < hostcluster.txt
2.Make it execuable : # chmod 755 script.sh 3.Execute it. # ./script.sh NOTE: If any clients are already installed on few
nodes you may see below messages, please don’t panic. ~~ }HTTP/1.1 409 Conflict X-Frame-Options: DENY X-XSS-Protection: 1; mode=block Set-Cookie:
AMBARISESSIONID=vam8jlo7ys401q0r5nm10bm71;Path=/;HttpOnly Expires: Thu, 01 Jan 1970 00:00:00 GMT User: admin Content-Type: text/plain Content-Length: 250 Server: Jetty(8.1.19.v20160209) ~~
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