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沈阳网站建设方案,网站首页设计定位,百度百科官网入口,互联网投诉服务平台原理图 两个集群---目的#xff1a;扩容 HA联邦模式解决了单纯HA模式的性能瓶颈#xff08;主要指Namenode、ResourceManager#xff09;#xff0c;将整个HA集群划分为两个以上的集群#xff0c;不同的集群之间通过Federation进行连接#xff0c;使得HA集群拥有了横向扩… 原理图  两个集群---目的扩容 HA联邦模式解决了单纯HA模式的性能瓶颈主要指Namenode、ResourceManager将整个HA集群划分为两个以上的集群不同的集群之间通过Federation进行连接使得HA集群拥有了横向扩展的能力。理论上在该模式下能够通过增加计算节点以处理无限增长的数据。联邦模式下的配置在原HA模式的基础上做了部分调整。 配置过程 federation   cp -r local/ federation     1.规划集群         ns1:nn1(s101) nn2(s102)         ns2:nn3(s103) nn4(s014)     2.准备         [nn1 ~ nn4 ]ssh 所有节点.       3.停止整个集群              4.配置文件         4.1)s101和s102的hdfs-site.xml配置             [hadoop/federation/hdfs-site.xml]             ?xml version1.0 encodingUTF-8?             ?xml-stylesheet typetext/xsl hrefconfiguration.xsl?             configuration                     property                                     namedfs.nameservices/name                                     valuens1,ns2/value                     /property                     !-- **************ns1********************* --                     property                                     namedfs.ha.namenodes.ns1/name                                     valuenn1,nn2/value                     /property                     property                                     namedfs.namenode.rpc-address.ns1.nn1/name                                     values101:8020/value                     /property                     property                                     namedfs.namenode.rpc-address.ns1.nn2/name                                     values102:8020/value                     /property                     property                                     namedfs.namenode.http-address.ns1.nn1/name                                     values101:50070/value                     /property                     property                                     namedfs.namenode.http-address.ns1.nn2/name                                     values102:50070/value                     /property                     property                                     namedfs.client.failover.proxy.provider.ns1/name                                     valueorg.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider/value                     /property                     !-- **************ns2********************* --                     property                                     namedfs.ha.namenodes.ns2/name                                     valuenn3,nn4/value                     /property                     property                                     namedfs.namenode.rpc-address.ns2.nn3/name                                     values103:8020/value                     /property                     property                                     namedfs.namenode.rpc-address.ns2.nn4/name                                     values104:8020/value                     /property                     property                                     namedfs.namenode.http-address.ns2.nn3/name                                     values103:50070/value                     /property                     property                                     namedfs.namenode.http-address.ns2.nn4/name                                     values104:50070/value                     /property                     property                                     namedfs.client.failover.proxy.provider.ns2/name                                     valueorg.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider/value                     /property                     !--***********************************************--                       property                                     namedfs.namenode.shared.edits.dir/name                                     valueqjournal://s102:8485;s103:8485;s104:8485/ns1/value                     /property                       property                                     namedfs.ha.fencing.methods/name                                     value                                                     sshfence                                                     shell(/bin/true)                                     /value                     /property                     property                                     namedfs.ha.fencing.ssh.private-key-files/name                                     value/home/centos/.ssh/id_rsa/value                     /property                       property                                     namedfs.ha.automatic-failover.enabled/name                                     valuetrue/value                     /property                     property                                     namedfs.replication/name                                     value3/value                     /property             /configuration           4.2)s103和s104的hdfs-site.xml配置             [hadoop/federation/hdfs-site.xml]             ?xml version1.0 encodingUTF-8?             ?xml-stylesheet typetext/xsl hrefconfiguration.xsl?             configuration                     property                                     namedfs.nameservices/name                                     valuens1,ns2/value                     /property                     !-- **************ns1********************* --                     property                                     namedfs.ha.namenodes.ns1/name                                     valuenn1,nn2/value                     /property                     property                                     namedfs.namenode.rpc-address.ns1.nn1/name                                     values101:8020/value                     /property                     property                                     namedfs.namenode.rpc-address.ns1.nn2/name                                     values102:8020/value                     /property                     property                                     namedfs.namenode.http-address.ns1.nn1/name                                     values101:50070/value                     /property                     property                                     namedfs.namenode.http-address.ns1.nn2/name                                     values102:50070/value                     /property                     property                                     namedfs.client.failover.proxy.provider.ns1/name                                     valueorg.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider/value                     /property                     !-- **************ns2********************* --                     property                                     namedfs.ha.namenodes.ns2/name                                     valuenn3,nn4/value                     /property                     property                                     namedfs.namenode.rpc-address.ns2.nn3/name                                     values103:8020/value                     /property                     property                                     namedfs.namenode.rpc-address.ns2.nn4/name                                     values104:8020/value                     /property                     property                                     namedfs.namenode.http-address.ns2.nn3/name                                     values103:50070/value                     /property                     property                                     namedfs.namenode.http-address.ns2.nn4/name                                     values104:50070/value                     /property                     property                                     namedfs.client.failover.proxy.provider.ns2/name                                     valueorg.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider/value                     /property                     !--***********************************************--                       property                                     namedfs.namenode.shared.edits.dir/name                                     valueqjournal://s102:8485;s103:8485;s104:8485/ns2/value                     /property                       property                                     namedfs.ha.fencing.methods/name                                     value                                                     sshfence                                                     shell(/bin/true)                                     /value                     /property                     property                                     namedfs.ha.fencing.ssh.private-key-files/name                                     value/home/centos/.ssh/id_rsa/value                     /property                       property                                     namedfs.ha.automatic-failover.enabled/name                                     valuetrue/value                     /property                     property                                     namedfs.replication/name                                     value3/value                     /property             /configuration                  4.3)s101 ~ s104的core-site.xml配置文件             [hadoop/federation/core-site.xml]             ?xml version1.0?             configuration xmlns:xihttp://www.w3.org/2001/XInclude                     xi:include hrefmountTable.xml /                     property                                     namefs.defaultFS/name                                     valueviewfs://ClusterX/value                     /property                     property                                     namedfs.journalnode.edits.dir/name                                     value/home/centos/hadoop/federation/journalnode/value                     /property                     property                                      namehadoop.tmp.dir/name                                     value/home/centos/hadoop/federation/value                     /property                     property                                     nameha.zookeeper.quorum/name                                     values102:2181,s103:2181,s104:2181/value                     /property             /configuration                  4.4)mountTable.xml  挂载表文件             [hadoop/federation/mountTable.xml]             configuration                     property                             namefs.viewfs.mounttable.ClusterX.homedir/name                             value/home/value                     /property                     property                             namefs.viewfs.mounttable.ClusterX.link./home/name                             valuehdfs://ns1/home/value                     /property                     property                             namefs.viewfs.mounttable.ClusterX.link./tmp/name                             valuehdfs://ns2/tmp/value                     /property                     property                             namefs.viewfs.mounttable.ClusterX.link./projects/foo/name                             valuehdfs://ns1/projects/foo/value                     /property                     property                             namefs.viewfs.mounttable.ClusterX.link./projects/bar/name                             valuehdfs://ns2/projects/bar/value                     /property             /configuration       5.操作         5.1)删除所有节点的日志和本地临时目录             $xcall.sh rm -rf /soft/hadoop/logs/*             $xcall.sh rm -rf /home/centos/hadoop/federation/*                  5.2)修改所有节点的hadoop软连接             $xcall.sh ln -sfT /soft/hadoop/etc/federation /soft/hadoop/etc/hadoop           5.3)对ns1集群进行格式化以及初始工作             a)启动jn集群                 登录s102 ~ s104启动jounalnode进程。                 $hadoop-daemon.sh start journalnode             b)格式化nn1节点                 [s101]                 $hdfs namenode -format             c)复制s101的元数据到s102下.                 [s101]                 $scp -r             d)在s102上执行引导过程                 #s101启动名称节点                 $hadoop-daemon.sh start namenode                 # s102执行引导,不要重格(N)                 $hdfs namenode -bootstrapStandby               e)在s102上初始化编辑日志到jn集群(N)                 $hdfs namenode -initializeSharedEdits             f)在s102对zookeeper格式化zkfc(选择Y).                 $hdfs zkfc -formatZK             g)启动s101和s102的namenode和zkfc进程。                 [s101]                 $hadoop-daemon.sh start zkfc                                  [s102]                 $hadoop-daemon.sh start namenode                 $hadoop-daemon.sh start zkfc               h)测试webui                                         5.4)对ns2集群进行格式化以及初始工作             a)格式nn3切记使用-clusterId属性保持和ns1的一致。                 [s103]                 $hdfs namenode -format -clusterId CID-e16c5e2f-c0a5-4e51-b789-008e36b7289a                              b)复制s103的元数据到s104上。                 $scp -r /home/centos/hadoop/federation centoss104:/home/centos/hadoop/             c)在s104引导                 #在s103启动namenode                 $hadoop-daemon.sh start namenode                 #在s104执行引导                 $hdfs namenode -bootstrapStandby             d)在s104上初始化编辑日志                 $hdfs namenode -initializeSharedEdits             e)在s104对zookeeper格式化zkfc(选择Y).                 $hdfs zkfc -formatZK             f)启动s103和s104的namenode和zkfc进程。                 [s103]                 $hadoop-daemon.sh start zkfc                                  [s104]                 $hadoop-daemon.sh start namenode                 $hadoop-daemon.sh start zkfc         5.5)停止集群             $stop-dfs.sh           5.6)重启dfs集群             $start-dfs.sh                          5.7)创建目录             # 注意加p参数             $hdfs dfs -mkdir -p /home/data                        #上传文件,考察webui             $hdfs dfs -put 1.txt /home/data     转载于:https://www.cnblogs.com/star521/p/9703171.html
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