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order This article mainly demonstrates an example of storm drpc To configure version: '2' services: supervisor: image: storm container_name: supervisor command: storm supervisor -c storm.local.hostname="192.168.99.100" -c drpc.servers='["192.168.99.100"]' -c drpc.port=3772 -c drpc.invocations.port=3773 -c drpc.http.p ...

Virtual Machine Management I. Installing Virtual Machines with Local Mirrors 1. Graphic Interface Installation virt-manager ##Open Virtual Machine Manager File - > New Virtual Machine, select the local image Select the size of the immediate storage space and CPU Select allocated sto ...

introduce Elastic search Curator helps you plan or manage your Elastic search index and snapshot in the following ways: Get a complete list of indexes (or snapshots) from the cluster as an operational list Iterate the list of user-defined filters and gradually remove the index (or snapshot) from the list as needed. Perform va ...

1. Write a word-count case. Some of the introductions have been introduced in the code comments. There is no extra space to write about the use of storm. The code is as follows:1. Write a spout to generate a sentence, as follows /** * @Auther: 18030501 * @Date: 2018/10/24 14:25 * @Description: Data stream generator * * sp ...

New Shop Mall for development needs to do a video upload function and download the plug-in for file upload. First introduce the JS of the plug-in 6.png Then label the html page you need to add <div class = "control-group"> <label class="control-label" for="file">Video upload:</label> <div id="zyupl ...

SpringBoot 2 Timing Task Native Test was successful, but the server could not run. The prompt error is as follows Unexpected error occurred in scheduled task. java.lang.NullPointerException: null Detailed errors are as follows, because the project is placed on the server will report errors. So you have to output the log to the se ...

The main purpose of FunDA design is to solve the problem of missing data source interline swimming operations in batch operation tool libraries such as FRM (Functional Relation Mapping) such as Slick. The result set produced by FRM is a static set, which lacks dynamic update operation mode. FunDA's solution is to transform the static set genera ...

Summary spring created a simplified definition of AOP in xml files http://www.springframework.org/schema/aop Namespaces, which I call AOP namespaces for short. When spring encounters a non-default namespace in parsing the xml configuration file content, it looks for the processor corresponding to the namespace in all spring.handlers files in ...

 1  T  R E      I •COMIC• D   3 5    O  Firebase can help you build better mobile applications and expand your business. How does it work? Firebase Realtime Database allows direct and secure access to databases from client code, so you can build rich collaborative applications. Data is kept ...

I. Editorial staff and the echo of basic information @Override public CrmStaff findById(String staffId) { // TODO Auto-generated method stub CrmStaff findStaff = this.getHibernateTemplate().get(CrmStaff.class,staffId); return findStaff; } //Inquiring employees according to id @Override public CrmStaff findById(String staffId) { ...