Shulou(Shulou.com)05/31 Report--

This article mainly introduces "how to deploy storm". In daily operation, I believe many people have doubts about how to deploy storm. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to deploy storm". Next, please follow the editor to study!

Storm deployment is divided into four parts: nimbus, supervisor, drpc and ui.

1 、 nimbus

Its function is similar to JobTracker in Hadoop. Nimbus is responsible for distributing code in the cluster, assigning computing tasks to machines, and monitoring status. Be called master node, control node (master node), etc.

Background startup mode command: nohup storm nimbus &

2 、 supervisor

A working node (worker node), on which each worker runs a node called Supervisor. Supervisor monitors the work assigned to its machine and starts / shuts down the worker process as needed. Each worker process executes a subset of a topology; a running topology consists of many worker processes running on many machines.

Background startup mode command: nohup storm supervisor &

3. Drpc service

DRPC includes two parts: server and client. The server consists of four parts: a DRPC Server, a DPRC Spout, a Topology and a ReturnResult. DRPC Server mainly plays the role of coordinating the client and the topology. It receives the request from the client, sends the request to topology, and then returns the processing result of topology to the client.

Background startup mode command: nohup storm drpc &

Modify the drpc server address in Storm/conf/storm.yaml; note that you must modify the configuration files on all Nimbus and supervisor to set the drpc server address. Otherwise, the result may not be returned during the run.

Drpc.servers:

-"vm1"

-"vm2"

4 、 ui

Monitoring the operation of the storm cluster, you can view the configuration information and the current number and operation of Topology. Need to run on the same machine as nimbus.

Background startup mode command: nohup storm ui &

At this point, the study on "how to deploy storm" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.