hadoop2.x常用端口、定义方法及默认端口、hadoop1.X端口对比
问题导读: 1.DataNode的http服务的端口、ipc服务的端口分别是哪个? 2.NameNode的http服务的端口、ipc服务的端口分别是哪个? 3.journalnode的http服务的端口、ipc服务的端口分别是哪个? 4.ResourceManager的http服务端口是哪个? 5.NodeManager的http服务
问题导读: 1.DataNode的http服务的端口、ipc服务的端口分别是哪个? 2.NameNode的http服务的端口、ipc服务的端口分别是哪个? 3.journalnode的http服务的端口、ipc服务的端口分别是哪个? 4.ResourceManager的http服务端口是哪个? 5.NodeManager的http服务端口是哪个? 6.Master的http服务的端口、ipc服务的端口分别是哪个? 7.3888是谁的端口,用来做什么? 扩展: hadoop1.X对应端口是哪个? 9000、9001分别对应是hadoop2.X的那个端口? Hadoop集群的各部分一般都会使用到多个端口,有些是daemon之间进行交互之用,有些是用于RPC访问以及HTTP访问。而随着Hadoop周边组件的增多,完全记不住哪个端口对应哪个应用,特收集记录如此,以便查询。 这里包含我们使用到的组件:HDFS, YARN, HBase, Hive, ZooKeeper:
所有端口协议均基于TCP。 对于存在Web UI(HTTP服务)的所有hadoop daemon,有如下url: /logs /logLevel /stacks /jmx /jmx?qry=Hadoop:*会返回所有hadoop相关指标。 而特定的Daemon又有特定的URL路径特定相应信息。 NameNode:http://:50070/ /dfshealth.jsp /dfsnodelist.jsp?whatNodes=(DEAD|LIVE) /fsck DataNode:http://:50075/ /blockScannerReport |
补充一些内容:
-
需要知道的默认配置
在Hadoop 2.2.0中,YARN框架有很多默认的参数值,如果你是在机器资源比较不足的情况下,需要修改这些默认值,来满足一些任务需要。
NodeManager和ResourceManager都是在yarn-site.xml文件中配置的,而运行MapReduce任务时,是在mapred-site.xml中进行配置的。
下面看一下相关的参数及其默认值情况:
参数名称 |
默认值 |
进程名称 |
配置文件 |
含义说明 |
yarn.nodemanager.resource.memory-mb | 8192 | NodeManager | yarn-site.xml | 从节点所在物理主机的可用物理内存总量 |
yarn.nodemanager.resource.cpu-vcores | 8 | NodeManager | yarn-site.xml | 节点所在物理主机的可用虚拟CPU资源总数(core) |
yarn.nodemanager.vmem-pmem-ratio | 2.1 | NodeManager | yarn-site.xml | 使用1M物理内存,最多可以使用的虚拟内存数量 |
yarn.scheduler.minimum-allocation-mb | 1024 | ResourceManager | yarn-site.xml | 一次申请分配内存资源的最小数量 |
yarn.scheduler.maximum-allocation-mb | 8192 | ResourceManager | yarn-site.xml | 一次申请分配内存资源的最大数量 |
yarn.scheduler.minimum-allocation-vcores | 1 | ResourceManager | yarn-site.xml | 一次申请分配虚拟CPU资源最小数量 |
yarn.scheduler.maximum-allocation-vcores | 8 | ResourceManager | yarn-site.xml | 一次申请分配虚拟CPU资源最大数量 |
mapreduce.framework.name | local | MapReduce | mapred-site.xml | 取值local、classic或yarn其中之一,如果不是yarn,则不会使用YARN集群来实现资源的分配 |
mapreduce.map.memory.mb | 1024 | MapReduce | mapred-site.xml | 每个MapReduce作业的map任务可以申请的内存资源数量 |
mapreduce.map.cpu.vcores | 1 | MapReduce | mapred-site.xml | 每个MapReduce作业的map任务可以申请的虚拟CPU资源的数量 |
mapreduce.reduce.memory.mb | 1024 | MapReduce | mapred-site.xml | 每个MapReduce作业的reduce任务可以申请的内存资源数量 |
yarn.nodemanager.resource.cpu-vcores | 8 | MapReduce | mapred-site.xml |
每个MapReduce作业的reduce任务可以申请的虚拟CPU资源的数量 |
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