{"id":50366,"date":"2023-01-27T03:24:16","date_gmt":"2023-02-17T09:21:11","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8spark%e5%a4%84%e7%90%86postgresql%e6%95%b0%e6%8d%ae%e3%80%82\/"},"modified":"2024-04-29T11:40:29","modified_gmt":"2024-04-29T03:40:29","slug":"%e7%94%a8spark%e5%a4%84%e7%90%86postgresql%e6%95%b0%e6%8d%ae%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8spark%e5%a4%84%e7%90%86postgresql%e6%95%b0%e6%8d%ae%e3%80%82\/","title":{"rendered":"\u7528Spark\u5904\u7406PostgreSQL\u6570\u636e"},"content":{"rendered":"<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a71\u3067\u3059\u3002Apache Spark\u306f\u6ce8\u76ee\u306e\u7684\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u3053\u3068\u3082\u3067\u304d\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002Spark\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u8aad\u3093\u3067\u898b\u3064\u3051\u305f\u306e\u3067\u3001\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u8a66\u3057\u305f\u74b0\u5883\u306f\u2026\u2026\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CentOS 7.1<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Apache Spark 1.4.1<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">PostgreSQL 9.4.4<\/ul>\n<p>\u662f\u7684\u3002<\/p>\n<h1>Apache Spark\u662f\u4e00\u4e2a\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u7684\u5f00\u6e90\u96c6\u7fa4\u8ba1\u7b97\u6846\u67b6\u3002<\/h1>\n<p>\u4e0d\u63d0\u4f9bSpark\u7684\u89e3\u91ca\u3002<\/p>\n<p>Apache Spark\u662f\u4e00\u79cd\u5feb\u901f\u7684\u5206\u5e03\u5f0f\u5904\u7406\u5e73\u53f0\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u4e0eHadoop\u548cCassandra\u7b49\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u914d\u5408\u4f7f\u7528\uff0c\u8fd8\u80fd\u591f\u63d0\u53d6\u548c\u5904\u7406\u5b58\u50a8\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u60a8\u53ef\u4ee5\u4eab\u53d7Spark\u5feb\u901f\u5904\u7406\u7684\u597d\u5904\uff0c\u800c\u65e0\u9700\u8fc1\u79fb\u73b0\u6709\u6570\u636e\u3002<\/p>\n<h1>\u5c06PostgreSQL\u7684\u8868\u52a0\u8f7d\u5230Spark\u4e2d<\/h1>\n<p>\u56e0\u4e3a\u8981\u4f7f\u7528JDBC\u8fde\u63a5\uff0c\u6240\u4ee5\u9700\u8981PostgreSQL\u7684JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002<br \/>\n\u8fd9\u6b21\u6211\u4eec\u51b3\u5b9a\u4f7f\u7528spark-shell\u8fdb\u884c\u7b80\u4fbf\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ SPARK_CLASSPATH=postgresql-9.4-1202.jdbc41.jar spark-shell\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u5c06PostgreSQL JDBC Driver\u7684jar\u6587\u4ef6\u6dfb\u52a0\u5230\u7c7b\u8def\u5f84\uff0c\u5e76\u542f\u52a8\u5373\u53ef\u3002<\/p>\n<p>[2016\/01\/05 \u6dfb\u52a0]<\/p>\n<p>\u4f7f\u7528SPARK_CLASSPATH\u4f1a\u5f15\u53d1\u4ee5\u4e0b\u5f03\u7528\u8b66\u544a\u3002<\/p>\n<pre class=\"post-pre\"><code>16\/01\/05 17:05:49 WARN spark.SparkConf:\r\nSPARK_CLASSPATH was detected (set to 'postgresql-9.4-1206-jdbc42.jar').\r\nThis is deprecated in Spark 1.0+.\r\n\r\nPlease instead use:\r\n - .\/spark-submit with --driver-class-path to augment the driver classpath\r\n - spark.executor.extraClassPath to augment the executor classpath\r\n<\/code><\/pre>\n<p>\u5982\u540c\u6d88\u606f\u6240\u8ff0\uff0c\u82e5\u8981\u4f7f\u7528driver-class-path\u547d\u4ee4\u884c\u9009\u9879\uff0c<\/p>\n<pre class=\"post-pre\"><code>$ spark-shell --driver-class-path=\/home\/spark\/postgresql-9.4-1206-jdbc42.jar\r\n<\/code><\/pre>\n<p>\u5982\u679c\u662f\u90a3\u6837\u7684\u8bdd\uff0c\u90a3\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code>Welcome to\r\n      ____              __\r\n     \/ __\/__  ___ _____\/ \/__\r\n    _\\ \\\/ _ \\\/ _ `\/ __\/  '_\/\r\n   \/___\/ .__\/\\_,_\/_\/ \/_\/\\_\\   version 1.4.1\r\n      \/_\/\r\n\r\nUsing Scala version 2.10.4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_51)\r\nscala&gt; sc\r\nres0: org.apache.spark.SparkContext = org.apache.spark.SparkContext@5f3f57ff\r\n<\/code><\/pre>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679cPostgreSQL\u5728\u672c\u5730\u4e3b\u673a\u76845432\u7aef\u53e3\u4e0a\u8fd0\u884c\uff0c\u5e76\u4e14\u5e0c\u671b\u4ee5postgres\u7528\u6237\u7684\u8eab\u4efd\u5c06foo\u8868\u7684\u6570\u636e\u5bfc\u5165Spark\uff0c\u5219\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>scala&gt; val fooRDD = sqlContext.load(\"jdbc\", Map(\r\n     | \"url\" -&gt; \"jdbc:postgresql:\/\/localhost:5432\/postgres?user=postgres\",\r\n     | \"dbtable\" -&gt; \"public.foo\"))\r\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u5728Spark\u4e0a\u5c06foo\u8868\u7684\u6570\u636e\u4f5c\u4e3aRDD\u548cDataFrame\u52a0\u8f7d\u3002<\/p>\n<p>[2016\/01\/05 \u66f4\u65b0]<br \/>\n\u5982\u679c\u6309\u7167\u4e0a\u8ff0\u7684\u65b9\u6cd5\uff0c\u5c06\u51fa\u73b0\u5df2\u4e0d\u5efa\u8bae\u4f7f\u7528\u7684\u8b66\u544a\u3002<\/p>\n<pre class=\"post-pre\"><code>&lt;console&gt;:25: warning: method load in class SQLContext is deprecated: Use read.format(source).options(options).load(). This will be removed in Spark 2.0.\r\n         val fooDF = sqlContext.load(\"jdbc\", Map(\r\n                                ^\r\n<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u4f7f\u7528\u4e0b\u8ff0\u7684API\u3002<\/p>\n<pre class=\"post-pre\"><code>scala&gt; val fooDF = sqlContext.read.format(\"jdbc\").options(\r\n     | Map(\"url\" -&gt; \"jdbc:postgresql:\/\/localhost:5432\/postgres?user=postgres\",\r\n     | \"dbtable\" -&gt; \"public.foo\")).load()\r\nfooDF: org.apache.spark.sql.DataFrame = [a: int, b: string]\r\n<\/code><\/pre>\n<p>\u4ee4\u4eba\u9ad8\u5174\u7684\u662f\uff0cfoo\u8868\u7684\u6a21\u5f0f\u5c06\u4ee5\u5e26\u6709\u6a21\u5f0f\u7684RDD\u4e3aDataFrame\u5f62\u5f0f\u5bfc\u5165Spark\u4e0a\u3002<br \/>\n\u65b9\u4fbf( *\u2018\u2200\u2018 )\u30ce<\/p>\n<pre class=\"post-pre\"><code>scala&gt; fooRDD.printSchema()\r\nroot\r\n |-- a: integer (nullable = false)\r\n |-- b: string (nullable = true)\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u5728\u5217a\u4e0a\u8bbe\u7f6e\u4e86\u4e3b\u952e\uff0c\u975e\u7a7a\u7ea6\u675f\u5df2\u7ecf\u6b63\u786e\u4f20\u9012\u3002\u592a\u597d\u4e86\uff01<\/p>\n<p>\u8fd9\u6b21\u6ca1\u6709\u4f7f\u7528\uff0c\u4f46\u4f3c\u4e4e\u53ef\u4ee5\u5728\u52a0\u8f7d\u65f6\u6307\u5b9aDataFrame\u7684\u5206\u533a\u6570\u7b49\u3002<\/p>\n<p>\u7136\u540e\uff0c\u53ef\u4ee5\u5c3d\u60c5\u5730\u4f7f\u7528Spark\u7684API\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>scala&gt; fooRDD.filter(fooRDD(\"a\") &gt; 99).show()\r\n+---+--------+\r\n|  a|       b|\r\n+---+--------+\r\n|100|inserted|\r\n|101|inserted|\r\n|103|inserted|\r\n|104|inserted|\r\n|105|inserted|\r\n+---+--------+\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>scala&gt; fooRDD.count()\r\nres7: Long = 100\r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5982\u679c\u6ce8\u518c\u4e3a\u4e34\u65f6\u8868\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528HiveQL\u6765\u6267\u884c\u7c7b\u4f3cSQL\u7684\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>scala&gt; fooRDD.registerTempTable(\"foo\")\r\nscala&gt; val res = sqlContext.sql(\"SELECT * FROM foo WHERE a &gt; 73 AND a &lt; 76\")\r\nres: org.apache.spark.sql.DataFrame = [a: int, b: string]\r\nscala&gt; res.show()\r\n+--+--------+\r\n| a|       b|\r\n+--+--------+\r\n|74|inserted|\r\n|75|inserted|\r\n+--+--------+\r\n<\/code><\/pre>\n<p>\u8fd9\u771f\u5389\u5bb3\u3002<\/p>\n<h1>Spark\u548cRDB\u7684\u4f7f\u7528\u573a\u666f\u533a\u5206<\/h1>\n<p>\u4f7f\u7528\u6b64\u529f\u80fd\uff0c\u53ef\u4ee5\u5c06\u5b58\u50a8\u5728PostgreSQL\u4e2d\u7684\u6570\u636e\u52a0\u8f7d\u5230Spark\u4e2d\uff0c\u5728\u5206\u5e03\u5f0f\u670d\u52a1\u5668\u7684\u5185\u5b58\u7a7a\u95f4\u4e2d\uff0c\u80fd\u591f\u5feb\u901f\u6267\u884cJOIN\u548c\u6392\u5e8f\u64cd\u4f5c\u3002<\/p>\n<p>\u5bf9\u4e8ePostgreSQL\u6765\u8bf4\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5927\u304d\u306a\u30c6\u30fc\u30d6\u30eb\u540c\u58eb\u306eJOIN\u51e6\u7406\u306a\u3069\u3092Spark\u306b\u30aa\u30d5\u30ed\u30fc\u30c9\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">DB\u3088\u308a\u4e0a\u306e\u5c64\u3067\u306e\u30c7\u30fc\u30bf\u30fb\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3092\u3057\u3066\u304f\u308c\u308b\u3053\u3068\u3067\u3001\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3092\u7372\u5f97\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7570\u306a\u308bDB\u9593\u306e\u30c7\u30fc\u30bf\u306e\u7a81\u304d\u5408\u308f\u305b\u306a\u3069\u3001\u5358\u4f53\u30b5\u30fc\u30d0\u3067\u306f\u30ab\u30d0\u30fc\u3067\u304d\u306a\u3044\u7bc4\u56f2\u3092Spark\u304c\u88dc\u3063\u3066\u304f\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">RDB\u306b\u4e0d\u5411\u304d\u306a\u30c7\u30fc\u30bf\u306fHDFS\u3084Casssandra\u306a\u3069\u306e\u305d\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306b\u4efb\u305b\u3066\u304a\u3044\u3066\u3082\u3001Spark\u4e0a\u3067PostgreSQL\u30c7\u30fc\u30bf\u3068\u9023\u643a\u3057\u3066\u3082\u3089\u3048\u308b<\/ul>\n<p>\u6709\u5982\u4e0b\u4f18\u70b9<\/p>\n<p>\u5bf9Spark\u800c\u8a00\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ec\u30b3\u30fc\u30c9\u5358\u4f4d\u306e\u51e6\u7406\u3084\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u304c\u5fc5\u8981\u306a\u51e6\u7406\u306a\u3069\u82e6\u624b\u306a\u7bc4\u56f2\u3092PostgreSQL\u306b\u4efb\u305b\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30c7\u30fc\u30bf\u306e\u6c38\u7d9a\u6027\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3001\u4e00\u8cab\u6027\u306e\u7ba1\u7406\u3082PostgreSQL\u306b\u304a\u9858\u3044\u3067\u304d\u308b<\/ul>\n<p>\u6709\u8bb8\u591a\u4ee4\u4eba\u9ad8\u5174\u7684\u65b9\u9762\u3002<\/p>\n<p>\u867d\u7136\u5728\u8fd9\u4e2a\u4e16\u754c\u4e0a\uff0c\u5e76\u4e0d\u53ea\u6709\u7f8e\u597d\u7684\u4e8b\u60c5\uff0c\u53ef\u80fd\u8fd8\u5b58\u5728\u7740\u6211\u4eec\u770b\u4e0d\u89c1\u7684\u9677\u9631\uff0c\u4f46\u662f\u611f\u89c9\u6709\u80fd\u529b\u505a\u65b0\u4e8b\u7269\u7684\u673a\u4f1a\uff0c\u771f\u662f\u592a\u68d2\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a71\u3067\u3059\u3002Apache Spark\u306f\u6ce8\u76ee\u306e\u7684\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u3053\u3068\u3082\u3067\u304d\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002Spark\u306e\u30de\u30cb [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50366","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528Spark\u5904\u7406PostgreSQL\u6570\u636e - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/zh\/blog\/\u7528spark\u5904\u7406postgresql\u6570\u636e\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7528Spark\u5904\u7406PostgreSQL\u6570\u636e\" \/>\n<meta property=\"og:description\" content=\"\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a71\u3067\u3059\u3002Apache Spark\u306f\u6ce8\u76ee\u306e\u7684\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u3053\u3068\u3082\u3067\u304d\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002Spark\u306e\u30de\u30cb [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7528spark\u5904\u7406postgresql\u6570\u636e\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-17T09:21:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T03:40:29+00:00\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u96c5, \u609f\" \/>\n\t<meta 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