{"id":36668,"date":"2023-01-01T06:45:10","date_gmt":"2023-04-04T16:34:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e8%b0%b7%e6%ad%8c%e5%8d%8f%e4%bd%9c%e5%b9%b3%e5%8f%b0%e4%b8%8a%e4%bd%bf%e7%94%a8apache-cassandra%e3%80%82\/"},"modified":"2024-04-29T07:55:30","modified_gmt":"2024-04-28T23:55:30","slug":"%e5%9c%a8%e8%b0%b7%e6%ad%8c%e5%8d%8f%e4%bd%9c%e5%b9%b3%e5%8f%b0%e4%b8%8a%e4%bd%bf%e7%94%a8apache-cassandra%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e8%b0%b7%e6%ad%8c%e5%8d%8f%e4%bd%9c%e5%b9%b3%e5%8f%b0%e4%b8%8a%e4%bd%bf%e7%94%a8apache-cassandra%e3%80%82\/","title":{"rendered":"\u5728\u8c37\u6b4c\u534f\u4f5c\u5e73\u53f0\u4e0a\u4f7f\u7528Apache Cassandra"},"content":{"rendered":"<p>\u6211\u53ea\u9700\u8981\u4e00\u79cd\u9009\u9879\uff0c<br \/>\n\u6211\u4f7f\u7528\u5b83\u5728\u6211\u7684Colaboratory\u4e0a\u8fdb\u884c\u7ec3\u4e60\u7684\u8bbe\u7f6e\u5907\u5fd8\u5f55\u3002<\/p>\n<h1>\u53c2\u8003\u8d44\u6599<\/h1>\n<h1>\u5b89\u88c5Cassandra<\/h1>\n<p>ipynb\u7684\u63cf\u8ff0\u8981\u600e\u4e48\u6837\u624d\u4f1a\u611f\u89c9\u597d\u5462\uff1f<\/p>\n<p>\u901a\u8fc7\u8fd0\u884c !java -version \u547d\u4ee4\u786e\u8ba4\uff0c\u5f97\u77e5\u5b89\u88c5\u4e86 openjdk version &#8220;11.0.11&#8221; 2021-04-20 \u7248\u672c\uff0c\u56e0\u6b64\u8fd8\u9700\u8981\u5b89\u88c5 OpenJDK 8\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">os<\/span>\r\n\r\n<span class=\"c1\">#apt-get\u3067\u5165\u308c\u305f\u5834\u5408\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u4f5c\u6210\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u306e\u3067\u3001\u8ffd\u52a0\r\n<\/span><span class=\"n\">new_dir<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'\/run\/cassandra'<\/span>\r\n<span class=\"n\">os<\/span><span class=\"p\">.<\/span><span class=\"n\">makedirs<\/span><span class=\"p\">(<\/span><span class=\"n\">new_dir<\/span><span class=\"p\">,<\/span> <span class=\"n\">exist_ok<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">)<\/span>\r\n\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">apt<\/span><span class=\"o\">-<\/span><span class=\"n\">get<\/span> <span class=\"n\">install<\/span> <span class=\"n\">openjdk<\/span><span class=\"o\">-<\/span><span class=\"mi\">8<\/span><span class=\"o\">-<\/span><span class=\"n\">jdk<\/span><span class=\"o\">-<\/span><span class=\"n\">headless<\/span> <span class=\"o\">-<\/span><span class=\"n\">qq<\/span> <span class=\"o\">&gt;<\/span> <span class=\"o\">\/<\/span><span class=\"n\">dev<\/span><span class=\"o\">\/<\/span><span class=\"n\">null<\/span>\r\n<span class=\"err\">!<\/span><span class=\"n\">echo<\/span> <span class=\"s\">\"deb http:\/\/downloads.apache.org\/cassandra\/debian 40x main\"<\/span> <span class=\"o\">|<\/span> <span class=\"n\">sudo<\/span> <span class=\"n\">tee<\/span> <span class=\"o\">-<\/span><span class=\"n\">a<\/span> <span class=\"o\">\/<\/span><span class=\"n\">etc<\/span><span class=\"o\">\/<\/span><span class=\"n\">apt<\/span><span class=\"o\">\/<\/span><span class=\"n\">sources<\/span><span class=\"p\">.<\/span><span class=\"nb\">list<\/span><span class=\"p\">.<\/span><span class=\"n\">d<\/span><span class=\"o\">\/<\/span><span class=\"n\">cassandra<\/span><span class=\"p\">.<\/span><span class=\"n\">sources<\/span><span class=\"p\">.<\/span><span class=\"nb\">list<\/span>\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">curl<\/span> <span class=\"n\">https<\/span><span class=\"p\">:<\/span><span class=\"o\">\/\/<\/span><span class=\"n\">downloads<\/span><span class=\"p\">.<\/span><span class=\"n\">apache<\/span><span class=\"p\">.<\/span><span class=\"n\">org<\/span><span class=\"o\">\/<\/span><span class=\"n\">cassandra<\/span><span class=\"o\">\/<\/span><span class=\"n\">KEYS<\/span> <span class=\"o\">|<\/span> <span class=\"n\">sudo<\/span> <span class=\"n\">apt<\/span><span class=\"o\">-<\/span><span class=\"n\">key<\/span> <span class=\"n\">add<\/span> <span class=\"o\">-<\/span>\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">sudo<\/span> <span class=\"n\">apt<\/span><span class=\"o\">-<\/span><span class=\"n\">get<\/span> <span class=\"n\">update<\/span> <span class=\"o\">-<\/span><span class=\"n\">qq<\/span>\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">sudo<\/span> <span class=\"n\">apt<\/span><span class=\"o\">-<\/span><span class=\"n\">get<\/span> <span class=\"n\">install<\/span> <span class=\"o\">-<\/span><span class=\"n\">qq<\/span> <span class=\"n\">cassandra<\/span> <span class=\"o\">&gt;<\/span> <span class=\"o\">\/<\/span><span class=\"n\">dev<\/span><span class=\"o\">\/<\/span><span class=\"n\">null<\/span>\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">pip<\/span> <span class=\"n\">install<\/span> <span class=\"o\">-<\/span><span class=\"n\">q<\/span> <span class=\"o\">-<\/span><span class=\"n\">U<\/span> <span class=\"n\">cassandra<\/span><span class=\"o\">-<\/span><span class=\"n\">driver<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">os<\/span>\r\n<span class=\"n\">os<\/span><span class=\"p\">.<\/span><span class=\"n\">environ<\/span><span class=\"p\">[<\/span><span class=\"s\">\"JAVA_HOME\"<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"\/usr\/lib\/jvm\/java-8-openjdk-amd64\"<\/span>\r\n\r\n<span class=\"c1\">#colabratory\u3060\u3068\u30e6\u30fc\u30b6\u306froot\u306a\u306e\u3067\u30aa\u30d7\u30b7\u30e7\u30f3\u4ed8\u304d\u3067\u8d77\u52d5\u3059\u308b\u3002\r\n<\/span><span class=\"err\">!<\/span><span class=\"n\">cassandra<\/span> <span class=\"o\">-<\/span><span class=\"n\">R<\/span> <span class=\"o\">-<\/span><span class=\"n\">p<\/span> <span class=\"o\">\/<\/span><span class=\"n\">run<\/span><span class=\"o\">\/<\/span><span class=\"n\">cassandra<\/span><span class=\"o\">\/<\/span><span class=\"n\">cassandra<\/span><span class=\"p\">.<\/span><span class=\"n\">pid<\/span> <span class=\"o\">&gt;<\/span> <span class=\"o\">\/<\/span><span class=\"n\">dev<\/span><span class=\"o\">\/<\/span><span class=\"n\">null<\/span>\r\n\r\n<span class=\"err\">!<\/span><span class=\"n\">nodetool<\/span> <span class=\"n\">status<\/span>\r\n<\/code><\/pre>\n<h2>\u6210\u6548\u3001\u7d42\u9ede\u3001\u7d50\u5c40\u3001\u7d50\u8ad6\u3001\u7d50\u904e\u53bb\u3001\u7d42\u65bc\u3001\u7d50\u679c\u3001\u679c\u5be6\u3001\u679c\u7136\u3001\u5c45\u56e0\u679c\u3001\u884d\u751f\u3001\u767c\u63ee\u3001\u81f3\u7d50\u3001\u5230\u982d\u4f86\u3001\u5230\u5e95\u3001\u7d50\u5c3e\u3001\u6c7a\u5b9a<\/h2>\n<pre class=\"post-pre\"><code>Datacenter: datacenter1\r\n<span class=\"o\">=======================<\/span>\r\n<span class=\"nv\">Status<\/span><span class=\"o\">=<\/span>Up\/Down\r\n|\/ <span class=\"nv\">State<\/span><span class=\"o\">=<\/span>Normal\/Leaving\/Joining\/Moving\r\n<span class=\"nt\">--<\/span>  Address    Load      Tokens  Owns <span class=\"o\">(<\/span>effective<span class=\"o\">)<\/span>  Host ID                               Rack \r\nUN  127.0.0.1  68.9 KiB  16      100.0%            8d69312c-7b81-4543-a6c6-e8abf3a0a85c  rack1\r\n<\/code><\/pre>\n<h1>\u505c\u4e0b\u6765<\/h1>\n<pre class=\"post-pre\"><code><span class=\"err\">!<\/span><span class=\"n\">kill<\/span> <span class=\"sb\">`cat \/run\/cassandra\/cassandra.pid`<\/span>\r\n<\/code><\/pre>\n<h1>\u6570\u636e\u5e93\u521b\u5efa\u7b49<\/h1>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">cassandra<\/span>\r\n\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">cassandra.cluster<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">Cluster<\/span>\r\n<span class=\"k\">try<\/span><span class=\"p\">:<\/span> \r\n    <span class=\"n\">cluster<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Cluster<\/span><span class=\"p\">([<\/span><span class=\"s\">'127.0.0.1'<\/span><span class=\"p\">])<\/span> <span class=\"c1\">#If you have a locally installed Apache Cassandra instance\r\n<\/span>    <span class=\"n\">session<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cluster<\/span><span class=\"p\">.<\/span><span class=\"n\">connect<\/span><span class=\"p\">()<\/span>\r\n<span class=\"k\">except<\/span> <span class=\"nb\">Exception<\/span> <span class=\"k\">as<\/span> <span class=\"n\">e<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"n\">session<\/span><span class=\"p\">.<\/span><span class=\"n\">execute<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\"\"\r\n    CREATE KEYSPACE IF NOT EXISTS my_db \r\n    WITH REPLICATION = \r\n    { 'class' : 'SimpleStrategy', 'replication_factor' : 1 }\"\"\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">except<\/span> <span class=\"nb\">Exception<\/span> <span class=\"k\">as<\/span> <span class=\"n\">e<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">try<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"n\">session<\/span><span class=\"p\">.<\/span><span class=\"n\">set_keyspace<\/span><span class=\"p\">(<\/span><span class=\"s\">'my_db'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"k\">except<\/span> <span class=\"nb\">Exception<\/span> <span class=\"k\">as<\/span> <span class=\"n\">e<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u7ee7\u7eed\u6267\u884c&#8221;CREATE TABLE IF NOT EXISTS my_db&#8221;\u8bed\u53e5\uff0c\u521b\u5efa\u8868\u3002<\/p>\n<h1>\u6982\u8ff0<\/h1>\n<p>\u6211\u8ba4\u4e3a\uff0c\u7531\u4e8eCassandra\u7684\u542f\u52a8\u9700\u8981\u4e00\u70b9\u65f6\u95f4\uff0c\u6240\u4ee5\u8fd9\u6837\u7684\u8f7b\u677e\u611f\u89c9\u8fd8\u662f\u633a\u597d\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u53ea\u9700\u8981\u4e00\u79cd\u9009\u9879\uff0c \u6211\u4f7f\u7528\u5b83\u5728\u6211\u7684Colaboratory\u4e0a\u8fdb\u884c\u7ec3\u4e60\u7684\u8bbe\u7f6e\u5907\u5fd8\u5f55\u3002 \u53c2\u8003\u8d44\u6599 \u5b89\u88c5Cassan [&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-36668","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>\u5728\u8c37\u6b4c\u534f\u4f5c\u5e73\u53f0\u4e0a\u4f7f\u7528Apache Cassandra - 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\/\u5728\u8c37\u6b4c\u534f\u4f5c\u5e73\u53f0\u4e0a\u4f7f\u7528apache-cassandra\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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