Jstorm2.1.1集群安装

待我称王封你为后i 2022-04-11 06:45 160阅读 0赞

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Strom是什么？  
  
storm是Twitter开源的的一个分布式的，容错的实时流计算系统，用来处理大数据系统中一些实时计算业务。strom本身是一个类似Hadoop的MapReduce的计算框架，最大不同在于storm是一个启动后不会停止的服务，除非主动kill掉，而MapReduce则会主动运行结束，storm本身并不负责存储数据，通常互联网的业务场景下strom会从kafka里面读取数据，然后计算完毕后，把计算结果写入redis，mysql或者hbase等一些存储或缓存系统中。  
  
  
Strom能干什么？  
  
Storm 有许多应用领域，包括实时分析、在线机器学习、信息流处理（例如，可以使用Storm 处理新的数据和快速更新数据库）、连续性的计算（例如，使用Storm 连续查询，然后将结果返回给客户端，如将微博上的热门话题转发给用户）、分布式RPC（远过程调用协议，通过网络从远程计算机程序上请求服务）、ETL（Extraction Transformation Loading，数据抽取、转换和加载）等。  
  
Strom的特点：  
  
（1）简化了编程模型，降低了开发的难度  
（2）支持多语言编程  
（3）高容错性  
（4）可水平扩展  
（5）有ack机制，保证消息可靠快速至少得到一次完整处理  
（6）支持local模式，方便快速开发调试  
  
Strom的架构模型  
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Jstorm是什么？  
  
Strom原生是用Clojure开发的，阿里团队在使用过程中，发现了不少了问题，于是使用Java重写了整个storm，使其更稳定，更快，更强大，并兼容原来storm的接口，所以命名为Jstrom，在阿里文档中提到，原storm写的jar，无须改动任何代码即可高效稳定的运行在jstrom的集群中，  
  
如何安装Jstorm？  
  
操作系统：  
Centos7  
节点三个：  
192.168.10.38 zk1 jdk8 nimbus+ui+tomcat  
192.168.10.39 zk2 jdk8 supervisor  
192.168.10.40 zk3 jdk8 supervisor  
  
（1）在3个节点上安装JDK，不再详细叙述  
（2）在3个节点上安装zookeeper，不再详细叙述，不清楚者，可参考我之前的文章：  
\[url\]http://qindongliang.iteye.com/category/299318\[/url\]  
zookeeper安装完之后，需要启动  
（3）在github下下载jstorm的压缩包：  
\[url\]https://github.com/alibaba/jstorm/releases\[/url\]  
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（4）解压到指定目录并配置环境变量：  
unzip jstorm-2.1.1.zip  
vi .bashrc 加入如下变量：  
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export PATH
    export PATH=.:$PATH
    #jdk
    export JAVA_HOME=/home/search/jdk1.8.0_102/
    export CLASSPATH=.:$JAVA_HOME/lib
    export PATH=$JAVA_HOME/bin:$PATH
    #jstorm
    export JSTORM_HOME=/home/search/jstorm-2.1.1
    export PATH=$PATH:$JSTORM_HOME/bin

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（5）下载tomcat  
wget \[url\]http://ftp.kddilabs.jp/infosystems/apache/tomcat/tomcat-8/v8.5.3/bin/apache-tomcat-8.5.3.tar.gz\[/url\]  
（6）安装storm-ui  
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//拷贝storm-ui的war包到tomcat的webapps路径下面
    cp /home/search/jstorm-2.1.1/storm-ui-2.1.1.war /home/search/apache-tomcat-8.5.4/webapps
    //备份旧目录
    mv ROOT ROOT.old
    //创建软连接，此时linux上会闪烁，不用担心，启动tomcat后，即可正常
    ln -s jstorm-ui-2.1.1 ROOT
    //最后进入tomcat的bin目录，启动
    bin/startup.sh

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（7）安装配置jstorm  
编辑vi jstorm-2.1.1/conf/storm.yaml文件  
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########### These MUST be filled in for a storm configuration
     storm.zookeeper.servers:  
                  - "192.168.10.38"
                  - "192.168.10.39"
                  - "192.168.10.40"
    
     storm.zookeeper.root: "/jstorm"
    
    # cluster.name: "default"
    
     #nimbus.host/nimbus.host.start.supervisor is being used by $JSTORM_HOME/bin/start.sh
     #it only support IP, please don't set hostname
     # For example
     # nimbus.host: "10.132.168.10, 10.132.168.45"
     nimbus.host: "192.168.10.38"
     #nimbus.host.start.supervisor: false
    
    # %JSTORM_HOME% is the jstorm home directory
     storm.local.dir: "%JSTORM_HOME%/data"
     # please set absolute path, default path is JSTORM_HOME/logs
    # jstorm.log.dir: "absolute path"
    
    # java.library.path: "/usr/local/lib:/opt/local/lib:/usr/lib"
    
    
    # if supervisor.slots.ports is null, 
    # the port list will be generated by cpu cores and system memory size 
    # for example, 
    # there are cpu_num = system_physical_cpu_num/supervisor.slots.port.cpu.weight
    # there are mem_num = system_physical_memory_size/(worker.memory.size * supervisor.slots.port.mem.weight) 
    # The final port number is min(cpu_num, mem_num)
    # supervisor.slots.ports.base: 6800
    # supervisor.slots.port.cpu.weight: 1.2
    # supervisor.slots.port.mem.weight: 0.7
    # supervisor.slots.ports: null
    # supervisor.slots.ports:
    #    - 6800
    #    - 6801
    #    - 6802
    #    - 6803
    
    # Default disable user-define classloader
    # If there are jar conflict between jstorm and application, 
    # please enable it 
    # topology.enable.classloader: false
    
    # enable supervisor use cgroup to make resource isolation
    # Before enable it, you should make sure:
    #       1. Linux version (>= 2.6.18)
    #       2. Have installed cgroup (check the file's existence:/proc/cgroups)
    #       3. You should start your supervisor on root
    # You can get more about cgroup:
    #   http://t.cn/8s7nexU
    # supervisor.enable.cgroup: false
    
    
    ### Netty will send multiple messages in one batch  
    ### Setting true will improve throughput, but more latency
    # storm.messaging.netty.transfer.async.batch: true
    
    ### if this setting  is true, it will use disruptor as internal queue, which size is limited
    ### otherwise, it will use LinkedBlockingDeque as internal queue , which size is unlimited
    ### generally when this setting is true, the topology will be more stable,
    ### but when there is a data loop flow, for example A -> B -> C -> A
    ### and the data flow occur blocking, please set this as false
    # topology.buffer.size.limited: true
    
    ### default worker memory size, unit is byte
    # worker.memory.size: 2147483648
    
    # Metrics Monitor
    # topology.performance.metrics: it is the switch flag for performance 
    # purpose. When it is disabled, the data of timer and histogram metrics 
    # will not be collected.
    # topology.alimonitor.metrics.post: If it is disable, metrics data
    # will only be printed to log. If it is enabled, the metrics data will be
    # posted to alimonitor besides printing to log.
    # topology.performance.metrics: true
    # topology.alimonitor.metrics.post: false
    
    # UI MultiCluster
    # Following is an example of multicluster UI configuration
    # ui.clusters:
    #     - {
       
    #         name: "jstorm",
    #         zkRoot: "/jstorm",
    #         zkServers:
    #             [ "localhost"],
    #         zkPort: 2181,
    #       }

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（8）分发配置好的jstorm包，并启动集群  
  
A：在nimbus上，执行nohup jstorm nimbus &启动nimbus，查看$JSTORM\_HOME/logs/nimbus.log，检查是否有错误  
B：在supervisor节点上执行 “nohup jstorm supervisor &”, 查看$JSTORM\_HOME/logs/supervisor.log检查有无错误  
  
（9）访问nimbus所在机的ip:8080，查看Jstorm的ui图：  
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至此安装成功！  
  
（10）常用命令  
  
提交任务命令：  
jstorm jar xxxx.jar 类名 参数1 参数2 参数n  
杀死任务命令：  
jstorm kill topologyName  
  
参考文档：  
\[url\]http://storm.apache.org/\[/url\]  
\[url\]https://github.com/alibaba/jstorm/wiki/JStorm-Chinese-Documentation\[/url\]  
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