{"id":471,"date":"2018-09-29T15:35:15","date_gmt":"2018-09-29T07:35:15","guid":{"rendered":"http:\/\/localhost\/?p=471"},"modified":"2018-09-29T17:15:14","modified_gmt":"2018-09-29T09:15:14","slug":"471","status":"publish","type":"post","link":"http:\/\/www.ahomer.cn\/?p=471","title":{"rendered":"sqoop\u5bfc\u51fa\uff0cupdate-key\u529f\u80fd\u7a7a\u6307\u9488\u5f02\u5e38\u95ee\u9898\u5904\u7406"},"content":{"rendered":"<p>\u4ecesqoop\u5bfc\u51famysql\uff0c\u6d89\u53cahdfs\u3001hive\u3001cos\uff08\u817e\u8baf\u4e91\u5bf9\u8c61\u5b58\u50a8\uff09\u7b49\u6570\u636e\u6e90\uff0csqoop 1.4.6\u5bfc\u51fa hive\u8868\u5230 mysql\uff0c\u5982\u679c\u9700\u8981\u7528\u5230update-key\u529f\u80fd\uff08\u6839\u636e\u4e3bkey\u66f4\u65b0\u6216\u63d2\u5165\uff09\uff0c1.4.6\u7248\u672c\u5b9e\u73b0\u4e0a\u6709bug\uff0c1.4.7\u7248\u672c\u5df2\u7ecf\u89e3\u51b3\u3002<\/p>\n<p>\u53ea\u80fd\u901a\u8fc7hdfs\u3001cos\u65b9\u5f0f\u5bfc\u51fa\uff0c\u6ce8\u610f\u9ed8\u8ba4hive\u6570\u636e\u5206\u9694\u7b26\u662f ctrl+a\uff0c\u6240\u4ee5\u9700\u8981\u5236\u5b9a\u5206\u9694\u7b26\"\\0001\"<\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><br \/>\n18\/09\/29 16:25:42 WARN hcat.SqoopHCatUtilities: No files under \/usr\/local\/service\/hive\/hcatalog\/lib to add to distributed cache for hcatalog job<br \/>\n18\/09\/29 16:25:42 WARN hcat.SqoopHCatUtilities: No files under \/usr\/local\/service\/hive\/hcatalog\/share\/hcatalog\/storage-handlers to add to distributed cache for hcatalog job<br \/>\n18\/09\/29 16:25:42 ERROR sqoop.Sqoop: Got exception running Sqoop: java.lang.NullPointerException<br \/>\njava.lang.NullPointerException<br \/>\n    at org.apache.sqoop.mapreduce.ExportJobBase.getFileType(ExportJobBase.java:127)<br \/>\n    at org.apache.sqoop.mapreduce.ExportJobBase.isSequenceFiles(ExportJobBase.java:118)<br \/>\n    at org.apache.sqoop.mapreduce.ExportJobBase.inputIsSequenceFiles(ExportJobBase.java:492)<br \/>\n    at org.apache.sqoop.mapreduce.JdbcUpdateExportJob.getMapperClass(JdbcUpdateExportJob.java:69)<br \/>\n    at org.apache.sqoop.mapreduce.ExportJobBase.configureMapper(ExportJobBase.java:268)<br \/>\n    at org.apache.sqoop.mapreduce.ExportJobBase.runExport(ExportJobBase.java:426)<br \/>\n    at org.apache.sqoop.manager.MySQLManager.upsertTable(MySQLManager.java:136)<br \/>\n    at org.apache.sqoop.tool.ExportTool.exportTable(ExportTool.java:74)<br \/>\n    at org.apache.sqoop.tool.ExportTool.run(ExportTool.java:100)<br \/>\n    at org.apache.sqoop.Sqoop.run(Sqoop.java:143)<br \/>\n    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)<br \/>\n    at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179)<br \/>\n    at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218)<br \/>\n    at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227)<br \/>\n    at org.apache.sqoop.Sqoop.main(Sqoop.java:236)<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><br \/>\n<code><br \/>\nsqoop export --connect jdbc:mysql:\/\/ip:port\/db --table table_name<br \/>\n    --username xxx --password xxx<br \/>\n    --export-dir hdfs\u8def\u5f84or cos\u8def\u5f84<br \/>\n    --update-key mysql-table-primary-key --update-mode allowinsert<br \/>\n    --input-fields-terminated-by \"\\0001\"<br \/>\n<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecesqoop\u5bfc\u51famysql\uff0c\u6d89\u53cahdfs\u3001hive\u3001cos\uff08\u817e\u8baf\u4e91\u5bf9\u8c61\u5b58\u50a8\uff09\u7b49\u6570\u636e\u6e90\uff0csqoop 1.4.6\u5bfc [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-471","post","type-post","status-publish","format-standard","hentry","category-program"],"_links":{"self":[{"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/posts\/471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=471"}],"version-history":[{"count":7,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/posts\/471\/revisions"}],"predecessor-version":[{"id":478,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=\/wp\/v2\/posts\/471\/revisions\/478"}],"wp:attachment":[{"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=471"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ahomer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}