{"id":4646,"date":"2020-04-14T21:30:47","date_gmt":"2020-04-14T13:30:47","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=4646"},"modified":"2020-07-04T22:29:13","modified_gmt":"2020-07-04T14:29:13","slug":"%e5%a4%a7%e6%95%b0%e6%8d%ae%e5%ad%a6%e4%b9%a0%e5%88%9d%e7%ba%a7%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%ef%bc%88%e5%8d%81%e4%ba%8c%ef%bc%89-hadoop-2-x-%e9%9b%86%e7%be%a4%e5%92%8c-zookee","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=4646","title":{"rendered":"\u5927\u6570\u636e\u5b66\u4e60\u521d\u7ea7\u5165\u95e8\u6559\u7a0b\uff08\u5341\u4e8c\uff09 \u2014\u2014 Hadoop 2.x \u96c6\u7fa4\u548c Zookeeper 3.x \u96c6\u7fa4\u505a\u96c6\u6210"},"content":{"rendered":"\n

\u5728\u4ee5\u524d\u4e00\u7bc7\u300a\u5927\u6570\u636e\u5b66\u4e60\u521d\u7ea7\u5165\u95e8\u6559\u7a0b\uff08\u4e00\uff09 \u2014\u2014 Hadoop 2.x \u5b8c\u5168\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5b89\u88c5\u3001\u542f\u52a8\u548c\u6d4b\u8bd5<\/a>\u300b\u4e2d\uff0c\u8be6\u7ec6\u5199\u4e86 Hadoop \u5b8c\u5168\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5b89\u88c5\u6b65\u9aa4\uff0c\u5728\u4e0a\u4e00\u7bc7\u300a\u5927\u6570\u636e\u5b66\u4e60\u521d\u7ea7\u5165\u95e8\u6559\u7a0b\uff08\u5341\u4e00\uff09 \u2014\u2014 Zookeeper 3.4.6 \u5b8c\u5168\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5b89\u88c5\u3001\u914d\u7f6e\u3001\u542f\u52a8\u548c\u6d4b\u8bd5<\/a>\u300b\u4e2d\u8be6\u7ec6\u5199\u4e86 Zookeeper \u5b8c\u5168\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5b89\u88c5\u6b65\u9aa4\uff0c\u6240\u4ee5\u8fd9\u7bc7\u5199\u4e00\u4e0b\u5982\u4f55\u8ba9\u4e24\u4e2a\u96c6\u7fa4\u505a\u96c6\u6210\uff0c\u8ba9 Zookeeper \u4fdd\u8bc1 Hadoop \u96c6\u7fa4\u7684\u9ad8\u53ef\u7528\u3002<\/p>\n\n\n\n

\u4e00\u3001\u73af\u5883\u51c6\u5907<\/h3>\n\n\n\n

\u4e0a\u9762\u4e24\u7bc7\u6587\u7ae0\u4e2d\u5df2\u7ecf\u8be6\u7ec6\u53d9\u8ff0\uff0c\u8fd9\u91cc\u7565\u8fc7\u3002<\/p>\n\n\n\n

\u89c4\u5212\u8282\u70b9\uff1anode19\uff08namenode\uff09\uff0cnode18\uff08namenode\uff09\uff0cnode11\uff08datanode\uff09\uff0cnode12\uff08datanode\uff09\uff0cnode13\uff08datanode\uff09\uff0c\u7279\u522b\u6ce8\u610f\uff1a\u4e24\u53f0\u53ca\u4ee5\u4e0a\u7684 namenode \u8981\u4e92\u76f8\u514d\u5bc6\u7801\u767b\u9646\u3002<\/strong><\/p>\n\n\n\n

\u4e8c\u3001\u5220\u6389\u6587\u4ef6<\/h3>\n\n\n\n

\u5220\u6389\u539f Hadoop \u96c6\u7fa4\u4e2d\u5404\u4e2a\u8282\u70b9\u4e2d\u914d\u7f6e\u7684 masters \u6587\u4ef6\uff1a<\/p>\n\n\n\n

# rm -rf \/home\/hadoop-2.5.1\/etc\/hadoop\/masters<\/p>\n\n\n\n

\u5220\u6389 hadoop \u96c6\u7fa4\u542f\u52a8\u751f\u6210\u7684\u6587\u4ef6\uff1a<\/p>\n\n\n\n

# rm -rf \/opt\/hadoop<\/p>\n\n\n\n

\u6ce8\u610f\uff1a<\/strong>\u4e0a\u9762\u5220\u9664\u6587\u4ef6\u64cd\u4f5c\u5728\u6240\u6709 Hadoop \u8282\u70b9\u6267\u884c\u3002<\/p>\n\n\n\n

\u4e09\u3001\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/h3>\n\n\n\n

\u4fee\u6539 hdfs-site.xml<\/strong> \u914d\u7f6e\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n\n\n\n

<\/div>
  1. <?xml version=\"<\/span>1.0<\/span>\" encoding=\"UTF-<\/span>8<\/span>\"?>  <\/span><\/span><\/li>
  2. <?xml-stylesheet type<\/span>=\"text\/xsl\" href=\"configuration<\/span>.<\/span>xsl\"?>  <\/span><\/span><\/li>
  3. <!--  <\/span><\/li>
  4.   Licensed under the Apache License, Version 2.0<\/span> (the \"License\");  <\/span><\/span><\/li>
  5.   you may not<\/span> use this <\/span>file<\/span> <\/span>except<\/span> <\/span>in<\/span> compliance <\/span>with<\/span> the License.  <\/span><\/span><\/li>
  6.   You may obtain a copy of<\/span> the License at  <\/span><\/span><\/li>
  7.   <\/span><\/li>
  8.     http:\/\/www.apache.org\/licenses\/LICENSE-2.0<\/span>  <\/span><\/span><\/li>
  9.   <\/span><\/li>
  10.   Unless required by applicable law or<\/span> agreed <\/span>to<\/span> <\/span>in<\/span> writing, software  <\/span><\/span><\/li>
  11.   distributed under the License is<\/span> distributed <\/span>on<\/span> an \"AS IS\" BASIS,  <\/span><\/span><\/li>
  12.   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or<\/span> implied.  <\/span><\/span><\/li>
  13.   See the License for<\/span> the specific language governing permissions <\/span>and<\/span>  <\/span><\/span><\/li>
  14.   limitations under the License. See accompanying LICENSE file<\/span>.  <\/span><\/span><\/li>
  15. -->  <\/span><\/li>
  16.   <\/span><\/li>
  17. <!-- Put site-specific property<\/span> overrides <\/span>in<\/span> this <\/span>file<\/span>. -->  <\/span><\/span><\/li>
  18.   <\/span><\/li>
  19. <configuration>  <\/span><\/li>
  20. <property<\/span>>  <\/span><\/span><\/li>
  21.   <name>dfs.<\/span>nameservices<\/name>  <\/span><\/span><\/li>
  22.   <value>mllcluster<\/value>  <\/span><\/li>
  23. <\/property<\/span>>  <\/span><\/span><\/li>
  24. <property<\/span>>  <\/span><\/span><\/li>
  25.   <name>dfs.<\/span>ha<\/span>.<\/span>namenodes<\/span>.<\/span>mllcluster<\/name>  <\/span><\/span><\/li>
  26.   <value>nn19,nn18<\/value>  <\/span><\/li>
  27. <\/property<\/span>>  <\/span><\/span><\/li>
  28. <property<\/span>>  <\/span><\/span><\/li>
  29.   <name>dfs.<\/span>namenode<\/span>.<\/span>rpc-address<\/span>.<\/span>mllcluster<\/span>.<\/span>nn19<\/name>  <\/span><\/span><\/li>
  30.   <value>node19:8020<\/span><\/value>  <\/span><\/span><\/li>
  31. <\/property<\/span>>  <\/span><\/span><\/li>
  32. <property<\/span>>  <\/span><\/span><\/li>
  33.   <name>dfs.<\/span>namenode<\/span>.<\/span>rpc-address<\/span>.<\/span>mllcluster<\/span>.<\/span>nn18<\/name>  <\/span><\/span><\/li>
  34.   <value>node18:8020<\/span><\/value>  <\/span><\/span><\/li>
  35. <\/property<\/span>>  <\/span><\/span><\/li>
  36. <property<\/span>>  <\/span><\/span><\/li>
  37.   <name>dfs.<\/span>namenode<\/span>.<\/span>http-address<\/span>.<\/span>mllcluster<\/span>.<\/span>nn19<\/name>  <\/span><\/span><\/li>
  38.   <value>node19:50070<\/span><\/value>  <\/span><\/span><\/li>
  39. <\/property<\/span>>  <\/span><\/span><\/li>
  40. <property<\/span>>  <\/span><\/span><\/li>
  41.   <name>dfs.<\/span>namenode<\/span>.<\/span>http-address<\/span>.<\/span>mllcluster<\/span>.<\/span>nn18<\/name>  <\/span><\/span><\/li>
  42.   <value>node18:50070<\/span><\/value>  <\/span><\/span><\/li>
  43. <\/property<\/span>>  <\/span><\/span><\/li>
  44. <property<\/span>>  <\/span><\/span><\/li>
  45.   <name>dfs.<\/span>namenode<\/span>.<\/span>shared<\/span>.<\/span>edits<\/span>.<\/span>dir<\/name>  <\/span><\/span><\/li>
  46.   <value>qjournal:\/\/node11:8485;node12:8485;node13:8485\/mllcluster<\/value><\/span>  <\/span><\/span><\/li>
  47. <\/property<\/span>>  <\/span><\/span><\/li>
  48. <property<\/span>>  <\/span><\/span><\/li>
  49.   <name>dfs.<\/span>client<\/span>.<\/span>failover<\/span>.<\/span>proxy<\/span>.<\/span>provider<\/span>.<\/span>mllcluster<\/name>  <\/span><\/span><\/li>
  50.   <value>org.<\/span>apache<\/span>.<\/span>hadoop<\/span>.<\/span>hdfs<\/span>.<\/span>server<\/span>.<\/span>namenode<\/span>.<\/span>ha<\/span>.<\/span>ConfiguredFailoverProxyProvider<\/value>  <\/span><\/span><\/li>
  51. <\/property<\/span>>  <\/span><\/span><\/li>
  52. <property<\/span>>  <\/span><\/span><\/li>
  53.   <name>dfs.<\/span>ha<\/span>.<\/span>fencing<\/span>.<\/span>methods<\/name>  <\/span><\/span><\/li>
  54.   <value>sshfence<\/value>  <\/span><\/li>
  55. <\/property<\/span>>  <\/span><\/span><\/li>
  56. <property<\/span>>  <\/span><\/span><\/li>
  57.   <name>dfs.<\/span>ha<\/span>.<\/span>fencing<\/span>.<\/span>ssh<\/span>.<\/span>private<\/span>-key-files<\/name>  <\/span><\/span><\/li>
  58.   <value>\/root\/.ssh\/id_dsa<\/value>  <\/span><\/li>
  59. <\/property<\/span>>  <\/span><\/span><\/li>
  60. <property<\/span>>  <\/span><\/span><\/li>
  61.   <name>dfs.<\/span>journalnode<\/span>.<\/span>edits<\/span>.<\/span>dir<\/name>  <\/span><\/span><\/li>
  62.   <value>\/opt\/journalnode\/data<\/value>  <\/span><\/li>
  63. <\/property<\/span>>  <\/span><\/span><\/li>
  64. <property<\/span>>  <\/span><\/span><\/li>
  65.   <name>dfs.<\/span>ha<\/span>.<\/span>automatic-failover<\/span>.<\/span>enabled<\/name>  <\/span><\/span><\/li>
  66.   <value>true<\/span><\/value>  <\/span><\/span><\/li>
  67. <\/property<\/span>>  <\/span><\/span><\/li>
  68. <!--  <\/span><\/li>
  69.     <property<\/span>>  <\/span><\/span><\/li>
  70.         <name>dfs.<\/span>namenode<\/span>.<\/span>secondary<\/span>.<\/span>http-address<\/name>  <\/span><\/span><\/li>
  71.         <value>node18:50090<\/span><\/value>  <\/span><\/span><\/li>
  72.     <\/property<\/span>>  <\/span><\/span><\/li>
  73.     <property<\/span>>  <\/span><\/span><\/li>
  74.         <name>dfs.<\/span>namenode<\/span>.<\/span>secondary<\/span>.<\/span>https-address<\/name>  <\/span><\/span><\/li>
  75.         <value>node18:50091<\/span><\/value>  <\/span><\/span><\/li>
  76.     <\/property<\/span>>  <\/span><\/span><\/li>
  77. -->  <\/span><\/li><\/ol><\/div>\n\n\n\n

    \u4fee\u6539 core-site.xml<\/strong> \u914d\u7f6e\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n\n\n\n

    <\/div>
    1. <?xml version=\"<\/span>1.0<\/span>\" encoding=\"UTF-<\/span>8<\/span>\"?>  <\/span><\/span><\/li>
    2. <?xml-stylesheet type<\/span>=\"text\/xsl\" href=\"configuration<\/span>.<\/span>xsl\"?>  <\/span><\/span><\/li>
    3. <!--  <\/span><\/li>
    4.   Licensed under the Apache License, Version 2.0<\/span> (the \"License\");  <\/span><\/span><\/li>
    5.   you may not<\/span> use this <\/span>file<\/span> <\/span>except<\/span> <\/span>in<\/span> compliance <\/span>with<\/span> the License.  <\/span><\/span><\/li>
    6.   You may obtain a copy of<\/span> the License at  <\/span><\/span><\/li>
    7.   <\/span><\/li>
    8.     http:\/\/www.apache.org\/licenses\/LICENSE-2.0<\/span>  <\/span><\/span><\/li>
    9.   <\/span><\/li>
    10.   Unless required by applicable law or<\/span> agreed <\/span>to<\/span> <\/span>in<\/span> writing, software  <\/span><\/span><\/li>
    11.   distributed under the License is<\/span> distributed <\/span>on<\/span> an \"AS IS\" BASIS,  <\/span><\/span><\/li>
    12.   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or<\/span> implied.  <\/span><\/span><\/li>
    13.   See the License for<\/span> the specific language governing permissions <\/span>and<\/span>  <\/span><\/span><\/li>
    14.   limitations under the License. See accompanying LICENSE file<\/span>.  <\/span><\/span><\/li>
    15. -->  <\/span><\/li>
    16.   <\/span><\/li>
    17. <!-- Put site-specific property<\/span> overrides <\/span>in<\/span> this <\/span>file<\/span>. -->  <\/span><\/span><\/li>
    18.   <\/span><\/li>
    19. <configuration>  <\/span><\/li>
    20.     <property<\/span>>  <\/span><\/span><\/li>
    21.         <name>fs.<\/span>defaultFS<\/name>  <\/span><\/span><\/li>
    22.         <value>hdfs:\/\/mllcluster<\/value><\/span>  <\/span><\/span><\/li>
    23. <!--        <value>hdfs:\/\/node19:9000<\/value>--><\/span>  <\/span><\/span><\/li>
    24.     <\/property<\/span>>  <\/span><\/span><\/li>
    25.     <property<\/span>>  <\/span><\/span><\/li>
    26.         <name>hadoop.<\/span>tmp<\/span>.<\/span>dir<\/name>  <\/span><\/span><\/li>
    27.         <value>\/opt\/hadoop\/hadoop-2.5<\/span><\/value>  <\/span><\/span><\/li>
    28.     <\/property<\/span>>  <\/span><\/span><\/li>
    29.     <property<\/span>>  <\/span><\/span><\/li>
    30.         <name>ha.<\/span>zookeeper<\/span>.<\/span>quorum<\/name>  <\/span><\/span><\/li>
    31.         <value>node19:2181<\/span>,node18:<\/span>2181<\/span>,node11:<\/span>2181<\/span><\/value>  <\/span><\/span><\/li>
    32.     <\/property<\/span>>  <\/span><\/span><\/li>
    33. <\/configuration>  <\/span><\/li><\/ol><\/div>\n\n\n\n

      \u4ece\u4e0a\u9762\u914d\u7f6e\u53ef\u4ee5\u770b\u5230\u914d\u7f6e\u4e86 Zookeeper \u96c6\u7fa4\u3002<\/p>\n\n\n\n

      \u56db\u3001\u914d\u7f6e\u5176\u5b83\u8282\u70b9<\/h3>\n\n\n\n

      \u62f7\u8d1d\u914d\u7f6e\u6587\u4ef6\u5230\u5176\u5b83\u673a\u5668\uff0c\u4f7f\u5f97\u5404\u4e2a\u8282\u70b9\u7684\u914d\u7f6e\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n\n\n\n

      scp -r .\/* root@node18:\/home\/hadoop-2.5.1\/etc\/hadoop\/
      scp -r .\/* root@node11:\/home\/hadoop-2.5.1\/etc\/hadoop\/
      scp -r .\/* root@node12:\/home\/hadoop-2.5.1\/etc\/hadoop\/
      scp -r .\/* root@node13:\/home\/hadoop-2.5.1\/etc\/hadoop\/<\/p><\/blockquote>\n\n\n\n

      \u4e94\u3001\u542f\u52a8 JournalNode \u8282\u70b9<\/h3>\n\n\n\n

      \u901a\u8fc7\u7b2c\u4e09\u6b65\uff0c\u53ef\u4ee5\u770b\u5230 JournalNode \u8282\u70b9\u914d\u7f6e\u5728 node11\u3001node12 \u548c node 13\uff0c\u901a\u8fc7\u4e0b\u9762\u547d\u4ee4\u542f\u52a8 JournalNode \u8282\u70b9\uff0c<\/p>\n\n\n\n

      # hadoop-daemon.sh start journalnode<\/p>\n\n\n\n

      \u5907\u6ce8\uff1a<\/strong><\/p>

      JournalNode \u4e5f\u662f\u4e00\u4e2a\u5c0f\u96c6\u7fa4\uff0c\u7528\u6765\u5bf9 hadoop \u96c6\u7fa4\u7684 edits\u3001fsimage \u6587\u4ef6\u8fdb\u884c\u5408\u5e76\u64cd\u4f5c\u3002<\/p>

      \u505c\u6b62\u547d\u4ee4\u662f\uff1ahadoop-daemon.sh stop journalnode<\/p><\/blockquote>\n\n\n\n

      \u68c0\u67e5\u662f\u5426\u542f\u52a8\u6210\u529f\uff0c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n

      # more \/home\/hadoop-2.5.1\/logs\/hadoop-root-journalnode-node13.log<\/p>\n\n\n\n

      \u65e0\u9519\u8bef\u65e5\u5fd7\u8f93\u51fa\u5219\u8868\u793a\u542f\u52a8\u6210\u529f\u3002<\/p>\n\n\n\n

      \u516d\u3001\u683c\u5f0f\u5316 Hadoop \u96c6\u7fa4<\/h3>\n\n\n\n

      \u5728\u4e00\u53f0 NameNode \u8282\u70b9\u4e0a\u6267\u884c\u547d\u4ee4\uff0c\u8fd9\u91cc\u5728 node18 \u8282\u70b9\u4e0a\u6267\u884c\u4e0b\u9762\u547d\u4ee4\uff1a<\/p>\n\n\n\n

      # hdfs namenode -format<\/p>\n\n\n\n

      \u6267\u884c\u540e\u628a\u683c\u5f0f\u5316\u751f\u6210\u7684\u6587\u4ef6\uff0c\u5168\u90e8\u540c\u6b65\u5230\u53e6\u5916\u4e00\u53f0 NameNode \u8282\u70b9\uff1a<\/p>\n\n\n\n

      # scp -r root@node18:\/opt\/hadoop \/opt\/<\/p>\n\n\n\n

      \u4e03\u3001\u521d\u59cb\u5316 HA \u914d\u7f6e<\/h3>\n\n\n\n

      \u5728\u5176\u4e2d\u4e00\u53f0 namenode \u4e0a\uff0c\u521d\u59cb\u5316\u9ad8\u53ef\u7528\uff08HA\uff09\u914d\u7f6e\u6570\u636e\uff0c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n

      # hdfs zkfc -formatZK<\/p>\n\n\n\n

      \u516b\u3001\u542f\u52a8 Hadoop \u96c6\u7fa4<\/h3>\n\n\n\n

      # start-dfs.sh<\/p>\n\n\n\n

      \u542f\u52a8\u96c6\u7fa4\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

      Starting namenodes on [node18 node19]
      node18: starting namenode, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-namenode-node18.out
      node19: starting namenode, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-namenode-node19.out
      node12: starting datanode, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-datanode-node12.out
      node13: starting datanode, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-datanode-node13.out
      node11: starting datanode, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-datanode-node11.out
      Starting journal nodes [node11 node12 node13]
      node13: journalnode running as process 1915. Stop it first.
      node11: journalnode running as process 2324. Stop it first.
      node12: journalnode running as process 2010. Stop it first.
      Starting ZK Failover Controllers on NN hosts [node18 node19]
      node18: starting zkfc, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-zkfc-node18.out
      node19: starting zkfc, logging to \/home\/hadoop-2.5.1\/logs\/hadoop-root-zkfc-node19.out<\/p><\/blockquote>\n\n\n\n

      \u7531\u4e8e journalnode \u8282\u70b9\u5728\u7b2c\u4e94\u6b65\u5df2\u7ecf\u542f\u52a8\uff0c\u53ef\u4ee5\u770b\u5230\u65e5\u5fd7\u63d0\u793a\u5df2\u7ecf\u8fd0\u884c\u4e2d\u3002<\/p>\n\n\n\n

      \u4e5d\u3001\u6d4b\u8bd5\u96c6\u7fa4\u662f\u5426\u6b63\u5e38<\/h3>\n\n\n\n

      \u9664\u4e86\u901a\u8fc7\u67e5\u770b\u96c6\u7fa4\u65e5\u5fd7\u6709\u65e0\u62a5\u9519\u6765\u5224\u65ad\u96c6\u7fa4\u662f\u5426\u542f\u52a8\u6b63\u5e38\u5916\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7 jps \u547d\u4ee4\u67e5\u770b\u96c6\u7fa4\u8fdb\u7a0b\u4fe1\u606f\uff1a<\/p>\n\n\n\n

      [root@node19 hadoop]# jps
      6417 DFSZKFailoverController
      6129 NameNode
      5298 QuorumPeerMain
      6495 Jps<\/p>

      [root@node18 ~]# jps
      3521 NameNode
      3617 DFSZKFailoverController
      1465 QuorumPeerMain
      3695 Jps<\/p>

      [root@node11 ~]# jps
      2337 JournalNode
      2247 DataNode
      1485 QuorumPeerMain
      2398 Jps<\/p>

      [root@node12 ~]# jps
      2210 DataNode
      2296 JournalNode
      1468 QuorumPeerMain
      2351 Jps<\/p>

      [root@node13 ~]# jps
      2293 JournalNode
      2350 Jps
      2207 DataNode
      1455 QuorumPeerMain<\/p><\/blockquote>\n\n\n\n

      \u8fd8\u6709\u4e00\u79cd\u65b9\u5f0f\u53ef\u4ee5\u6d4b\u8bd5\u96c6\u7fa4\u662f\u5426\u6b63\u5e38\u542f\u52a8\uff0c\u5c31\u662f\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbf\u95ee\u76d1\u63a7\u9875\u9762 http:\/\/192.168.220.19:50070\/<\/a> \u548c http:\/\/192.168.220.18:50070\/<\/a>\uff0c\u53ef\u4ee5\u5206\u522b\u770b\u5230\u5982\u4e0b\u9875\u9762\u4fe1\u606f\uff1a<\/p>\n\n\n\n

      \"\"\/<\/p>\n\n\n\n

      \"\"\/<\/p>\n\n\n\n

      \u5341\u3001\u6d4b\u8bd5\u9ad8\u53ef\u7528<\/h3>\n\n\n\n

      \u6d4b\u8bd5\u4e24\u4e2a NameNode \u662f\u4e0d\u662f\u53ef\u4ee5\u9ad8\u53ef\u7528\uff0c\u53ef\u4ee5 kill \u6389 active \u7684 NameNode \u8282\u70b9\uff0c\u8fd9\u91cc\u662f node19\uff0c\u53e6\u4e00\u4e2a standby \u8282\u70b9\u5c31\u4f1a\u53d8\u4e3a active\u3002<\/p>\n\n\n\n

      \u901a\u8fc7 jps \u53ef\u4ee5\u770b\u5230 node19 \u4e0a\u7684 NameNode \u8282\u70b9\u8fdb\u7a0b\u4fe1\u606f\u4e3a\uff1a<\/p>\n\n\n\n

      6129 NameNode<\/p><\/blockquote>\n\n\n\n

      # kill -9 6129<\/p>\n\n\n\n

      \u518d\u6b21\u8bbf\u95ee\u76d1\u63a7\u9875\u9762\uff0c\u53ef\u4ee5\u770b\u5230 node18 \u5df2\u53d8\u4e3a active \u72b6\u6001\uff1a<\/p>\n\n\n\n

      \"\"\/<\/p>\n\n\n\n

      \u5341\u4e00\u3001\u5176\u5b83\u4e00\u4e9b\u547d\u4ee4<\/h3>\n\n\n\n

      \u542f\u52a8 kill \u6389\u7684 namenode \u8282\u70b9\uff1ahadoop-daemon.sh start namenode<\/p>\n\n\n\n

      \u624b\u52a8\u5207\u6362 active \u8282\u70b9\uff1ahdfs haadmin -transitionToActive nn19<\/p>\n\n\n\n

      \u6ce8\u610f\uff1a\u81ea\u52a8\u5207\u6362\u5f00\u542f\u540e\u8be5\u547d\u4ee4\u4e0d\u6210\u529f\uff0c\u9700\u5173\u95ed\u81ea\u52a8\u5207\u6362\u624d\u80fd\u597d\u7528\u3002<\/p>\n\n\n\n

      \u521b\u5efa\u76ee\u5f55\uff1ahdfs dfs -mkdir \/test<\/p>\n\n\n\n

      \u5341\u4e8c\u3001\u505c\u6b62 Hadoop \u96c6\u7fa4<\/h3>\n\n\n\n

      # stop-dfs.sh<\/p>\n\n\n\n

      \u505c\u6b62\u96c6\u7fa4\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

      Stopping namenodes on [node18 node19]
      node18: stopping namenode
      node19: stopping namenode
      node11: stopping datanode
      node12: stopping datanode
      node13: stopping datanode
      Stopping journal nodes [node11 node12 node13]
      node11: stopping journalnode
      node13: stopping journalnode
      node12: stopping journalnode
      Stopping ZK Failover Controllers on NN hosts [node18 node19]
      node18: stopping zkfc
      node19: stopping zkfc<\/p><\/blockquote>\n\n\n\n

      \u5230\u6b64\uff0cHadoop \u96c6\u7fa4\u548c Zookeeper \u96c6\u7fa4\u7684\u96c6\u6210\u57fa\u672c\u5b8c\u6210\u3002<\/p>\n\n\n\n

      \u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/tzhuwb\/article\/details\/105520506<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5728\u4ee5\u524d\u4e00\u7bc7\u300a\u5927\u6570\u636e\u5b66\u4e60\u521d\u7ea7\u5165\u95e8\u6559\u7a0b\uff08\u4e00\uff09 \u2014\u2014 Hadoop 2.x \u5b8c\u5168\u5206\u5e03\u5f0f\u96c6\u7fa4\u7684\u5b89\u88c5\u3001\u542f\u52a8\u548c\u6d4b\u8bd5\u300b\u4e2d\uff0c\u8be6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[682],"tags":[684,749,770,183,199,790,781],"class_list":["post-4646","post","type-post","status-publish","format-standard","hentry","category-bigdata","tag-hadoop","tag-zookeeper","tag-770","tag-183","tag-199","tag-790","tag-781"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/4646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4646"}],"version-history":[{"count":2,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/4646\/revisions"}],"predecessor-version":[{"id":4648,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/4646\/revisions\/4648"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4646"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}