{"id":1785,"date":"2019-09-17T17:26:05","date_gmt":"2019-09-17T15:26:05","guid":{"rendered":"https:\/\/myoceane.fr\/?p=1785"},"modified":"2019-09-29T21:09:12","modified_gmt":"2019-09-29T19:09:12","slug":"filesystem-send-file-to-hdfs","status":"publish","type":"post","link":"https:\/\/myoceane.fr\/index.php\/filesystem-send-file-to-hdfs\/","title":{"rendered":"[Hdfs] \u5229\u7528 FileSystem \u50b3\u8cc7\u6599\u5230 Hdfs?"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n\n<p style=\"text-align: justify;\">\u5728\u958b\u59cb\u505a\u5927\u6578\u64da\u7684\u5c08\u6848\u7684\u6642\u5019\u901a\u5e38\u90fd\u6703\u9047\u5230\u9019\u500b\u554f\u984c\uff0c\u8981\u5148\u628a\u8cc7\u6599\u9001\u5230 Hdfs \u4e0a\u4e4b\u5f8c\uff0c\u8cc7\u6599\u624d\u6709\u53ef\u80fd\u88ab Spark \u7b49\u7a0b\u5f0f\u4f7f\u7528\uff0c\u4e00\u822c\u4f86\u8aaa\u50b3\u9001\u6a94\u6848\u5230 Hdfs \u53ef\u4ee5\u5229\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff0cEMS\/RabbitMQ, Knox Server, FTR,&nbsp; \u6216\u662f Kafka \u7b49\u7b49\uff0c\u5e38\u898b\u7684\u505a\u6cd5\u662f\u900f\u904e Knox \u4f3a\u670d\u5668\uff0c\u7531\u65bc Hdfs \u7684\u7fa4\u96c6\u662f\u7531\u591a\u500b NameNode \u8207\u591a\u500b DataNode \u7d44\u6210\uff0c\u6700\u76f4\u63a5\u7684\u505a\u6cd5\u662f\u7522\u751f\u4e00\u500b FileSystem \u76f4\u63a5\u6307\u5411 Hdfs \u800c\u4e0d\u662f\u900f\u904e Knox\uff0c\u672c\u7bc7\u8981\u5448\u73fe\u5982\u4f55\u4e0d\u900f\u904e Knox \u5411 Hdfs \u50b3\u9001\u8cc7\u6599\uff01<\/p>\n\n\n\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link\" href=\"https:\/\/knox.apache.org\/\">Knox \u4f3a\u670d\u5668<\/a><\/div>\n\n\n\n<p style=\"text-align: justify;\">\u672c\u7bc7\u8a18\u9304\u7684\u662f\u5229\u7528 core-site.xml \u8207 hdfs-site.xml \u751f\u6210\u9060\u7aef\u7684 FileSystem\uff0c\u4e26\u4e14\u5229\u7528 FileSystem \u985e\u5225\u5df2\u6709\u7684\u51fd\u5f0f\u9032\u884c\u50b3\u9001\uff0c\u4ee5\u4e0b\u662f\u7a0b\u5f0f\u78bc\uff1a<\/p>\n<pre class=\"lang:java\">public FileSystem getDatalakeFileSystem(String confPath, String login, String keyTab){\n\n\tString krbConf = confPath + \"krb5.conf\";\n\tSystem.setProperty(\"java.security.krb5.conf\", krbConf);\n\tSystem.setProperty(\"sun.security.krb5.Config\", krbConf);\n\tSystem.setProperty(\"user.name\", login);\n\t\n\tConfiguration conf = new Configuration();\n\tconf.addResource(new Path(confPath + \"\/core-site.xml\");\n\tconf.addResource(new Path(confPath + \"\/hdfs-site.xml\");\n\tconf.set(\"hadoop.security.authentication\", \"kerberos\");\n\tconf.set(\"hadoop.security.authorization\", \"true\");\n\t\n\tUserGroupInformation.setConfiguration(conf);\n\tUserGroupInformation.loginUserFromKeytab(login, keyTab);\n\t\n\ttry{    \n\t    return FileSystem.get(new URI(\"swebhdfs:\/\/localhost:9000\"), conf);\n\t} catch (URISyntaxException uriException) {\n\t    throw new IOException(uriException);\n\t}\n}<\/pre>\n\n\n\n<p>\u5728\u751f\u6210 FileSystem \u4ecb\u9762\u4e4b\u5f8c\uff0c\u4e0b\u5217\u76f8\u5c0d\u61c9\u7684\u61c9\u7528\u5c31\u61c9\u904b\u800c\u751f\u4e86\u3002<\/p>\n<ul>\n<li>boolean delete(Path path, boolean b)<\/li>\n<li>FileStatus[] listStatus(Path path)<\/li>\n<li>FileStatus[] listStatus(Path[] files)<\/li>\n<li>void copyFromLocalFile(Path src, Path dst)<\/li>\n<li>boolean mkdirs(Path f)<\/li>\n<li>boolean exists(Path f)<\/li>\n<li>FSDataInputStream open(Path f)<\/li>\n<li>&#8230;<\/li>\n<\/ul>\n<p>\u5728\u4f7f\u7528\u9019\u500b\u529f\u80fd\u7684\u6642\u5019\uff0c\u6700\u91cd\u8981\u7684\u662f\u8981\u63d0\u4f9b\u4ee5\u4e0b\u7684\u6a94\u6848\uff0ccore-site.xml \u8207 hdfs-site.xml \u5b9a\u7fa9\u4e86 hdfs \u7684\u7d44\u6210\u65b9\u5f0f\uff0c\u4f8b\u5982\u8981\u53bb\u54ea\u88e1\u627e\u5230 NameNodes \u8207 DataNodes\uff0c\u4e00\u822c\u4f86\u8aaa Kerberos \u662f\u7528\u4f86\u7ba1\u7406 hdfs \u7684\u6b0a\u9650\uff0c\u5229\u7528 krb5.conf \u8207 user.keytab \u5247\u53ef\u4ee5\u53d6\u5f97 Kerberos \u7684\u8a8d\u8b49\u3002<\/p>\n<ul>\n<li>core-site.xml<\/li>\n<li>hdfs-site.xml<\/li>\n<li>krb5.conf<\/li>\n<li>user.keytab<\/li>\n<\/ul>\n<p>core-site.xml \u8207 hdfs-site.xml \u7684\u8a2d\u5b9a\u53ef\u4ee5\u53c3\u8003<a href=\"https:\/\/myoceane.fr\/?p=1210\">\u9023\u7d50<\/a>\uff1a<\/p>\n<pre class=\"lang:markup\">&lt;configuration&gt;\n    &lt;property&gt;\n    \t&lt;name&gt;fs.defaultFS&lt;\/name&gt;\n        &lt;value&gt;swebhdfs:\/\/localhost:9000&lt;\/value&gt;\n    &lt;\/property&gt;\n&lt;\/configuration&gt;<\/pre>\n<pre class=\"lang:markup\">&lt;configuration&gt;\n    &lt;property&gt;\n        &lt;name&gt;dfs.replication&lt;\/name&gt;\n        &lt;value&gt;1&lt;\/value&gt;\n    &lt;\/property&gt;\n    &lt;property&gt;\n        &lt;name&gt;dfs.namenode.name.dir&lt;\/name&gt;\n    \t&lt;value&gt;\/opt\/hadoop-3.1.2\/data\/namenode&lt;\/value&gt;\n    &lt;\/property&gt;\n    &lt;property&gt;\n        &lt;name&gt;dfs.datanode.data.dir&lt;\/name&gt;\n        &lt;value&gt;\/opt\/hadoop-3.1.2\/data\/datanode&lt;\/value&gt;\n    &lt;\/property&gt;\n&lt;\/configuration&gt;<\/pre>\n<p>\u5728\u958b\u767c\u9019\u500b\u529f\u80fd\u7684\u6642\u5019\uff0c\u6ab8\u6aac\u7238\u4e5f\u9047\u5230\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<pre class=\"lang:bash\">Exception in thread \"main\" java.io.IOException: No FileSystem for scheme: swebhdfs\n    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1375)\n    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)\n    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1390)\n    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:196)\n    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:95)\n    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:180)\n    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:175)\n    at org.apache.mahout.classifier.naivebayes.NaiveBayesModel.materialize(NaiveBayesModel.java:100)<\/pre>\n<pre class=\"lang:bash\">java.lang.IllegalArgumentException: Can't get Kerberos realm\n    at org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:65)\n    at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:263)\n    at org.apache.hadoop.security.UserGroupInformation.setConfiguration(UserGroupInformation.java:299)\n    at utils.ConnectionHandler.connectHiveDB(ConnectionHandler.java:58)<\/pre>\n<p>\u53ea\u8981\u7167\u4e0a\u9762\u63d0\u4f9b\u7684\u7a0b\u5f0f\u78bc\u57f7\u884c\u5c31\u53ef\u4ee5\u89e3\u6c7a\u9019\u5169\u500b\u554f\u984c\uff1a\uff09<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u958b\u59cb\u505a\u5927\u6578\u64da\u7684\u5c08\u6848\u7684\u6642\u5019\u901a\u5e38\u90fd\u6703\u9047\u5230\u9019\u500b\u554f\u984c\uff0c\u8981\u5148\u628a\u8cc7\u6599\u9001\u5230 Hdfs \u4e0a\u4e4b\u5f8c\uff0c\u8cc7\u6599\u624d\u6709\u53ef\u80fd\u88ab Spark \u7b49\u7a0b\u5f0f\u4f7f\u7528\uff0c\u4e00\u822c\u4f86\u8aaa\u50b3\u9001\u6a94\u6848\u5230 Hdfs \u53ef\u4ee5\u5229\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff0cEMS\/RabbitMQ, Knox Server, FTR \u6216\u662f Kafka \u7b49\u7b49\uff0c\u5e38\u898b\u7684\u505a\u6cd5\u662f\u900f\u904e Knox \u4f3a\u670d\u5668\uff0c\u7531\u65bc Hdfs \u7684\u7fa4\u96c6\u662f\u7531\u591a\u500b NameNode \u8207\u591a\u500b DataNode \u7d44\u6210\uff0c\u6700\u76f4\u63a5\u7684\u505a\u6cd5\u662f\u7522\u751f\u4e00\u500b FileSystem \u76f4\u63a5\u6307\u5411 Hdfs \u800c\u4e0d\u662f\u900f\u904e Knox\uff0c\u672c\u7bc7\u8981\u5448\u73fe\u5982\u4f55\u4e0d\u900f\u904e Knox \u5411 Hdfs \u50b3\u9001\u8cc7\u6599\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,14],"tags":[],"class_list":["post-1785","post","type-post","status-publish","format-standard","hentry","category-bigdata-ml","category-it-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Hdfs] \u5229\u7528 FileSystem \u50b3\u8cc7\u6599\u5230 Hdfs? - \u60f3\u65b9\u6d89\u6cd5 - \u91cf\u74f6\u5916\u7684\u5929\u7a7a M-Y-Oceane<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/myoceane.fr\/index.php\/filesystem-send-file-to-hdfs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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