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zouziyan

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牛人

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黄钟吕

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DER | 请一句话介绍你自己，大部分情况下会在你的头像和名字旁边显示，字数要大...

第 4719 位会员 ⋅ 2021-09-27 ⋅ 126 关注者 ⋅ 57 篇话题 ⋅ 1 条回帖 ⋅ 篇文章

spark 连接 impala 可以怎么连接？ by 菜鸟程序狗

https://www.hainiubl.com/topics/462? 2018-03-13 ⋅ 6281 ⋅ 0 ⋅ 1

spark连接impala可以怎么连接？

hbase 热点问题不理解? by 大中

https://www.hainiubl.com/topics/463? 2018-03-14 ⋅ 3788 ⋅ 0 ⋅ 1

region达到一定阈值会裂变，为什么写入的时候不会裂变而会出现热点问题？

dataframe 写入 impala 语法错误，怎么解决？ by 菜鸟程序狗

https://www.hainiubl.com/topics/464? 2018-03-15 ⋅ 10406 ⋅ 0 ⋅ 1

dataframe写入impala出现语法错误，错误： Exception in thread "main" java.sql.SQLException: [Simba][ImpalaJDBCDriver](500051) ERROR processing query/statement. Error Code: 0, SQL state: TStatus(statusCode:ERROR_STATUS, sqlState:HY000, errorMessage:Ana...

Spark 对于大量数据 sort 之后，collect 内存不够，怎么将所有排序完的数据有序输出？ by 小鱼

https://www.hainiubl.com/topics/465? 2018-03-15 ⋅ 7529 ⋅ 0 ⋅ 1

Spark 对于大量数据sort之后，每个partition上的数据都是有序的，但想要得到全局有序必须要做collect操作，但driver的内存不够怎么办，有什么办法可以将排序完的数据有序的输出到磁盘或者hdfs上么？

我在 hive 中建立表，再到 impala-shell 中却找不到该表？ by 菜鸟程序狗

https://www.hainiubl.com/topics/466? 2018-03-15 ⋅ 5218 ⋅ 0 ⋅ 1

我在hive中建立表，再到impala-shell中却找不到该表，只有执行invalidate metadata命令后，才能在impala-shell中查找到该表，impala的statestored，catalogd进程状态都好的

反编译工具，谁有啊？ by 密斯仁

https://www.hainiubl.com/topics/467? 2018-03-16 ⋅ 3541 ⋅ 0 ⋅ 1

谁有jd-ugi啊，网上找不到可以下载的？

hadoop 启动从机显示 0.0.0.0:50010 端口被占用？求大神解决！！！ by 好好学习

https://www.hainiubl.com/topics/468? 2018-03-17 ⋅ 6167 ⋅ 0 ⋅ 4

我一共开了三台机器，一个主机，2个从机，主机的slaves文件写的是2台从机的ip，2台从机的slaves写的localhost,在主机中hadoop namenode -format后再执行sbin/start-all.sh后主机jps显示信息正常，而2台从机jps不显示datanode,查看2台从机日志发现[0.0.0.0:50010]地址已...

请问两张大表进行 join，要求优化，不用 hive 的分桶，用算法实现，怎么实现呢？ by ling775000

https://www.hainiubl.com/topics/469? 2018-03-17 ⋅ 5022 ⋅ 0 ⋅ 1

如题

hadoop 使用 root 权限？ by tedxianfq

https://www.hainiubl.com/topics/470? 2018-03-19 ⋅ 4337 ⋅ 0 ⋅ 1

是不是只要hadoop用户拥有root组就可以使用root权限，usermod -g root hadoop 会不会对root用户照成什么影响，实际也是这么修改吗？

请问哪位海牛有 hadoop 视频中的脚本文件，能共享下吗？ by tedxianfq

https://www.hainiubl.com/topics/471? 2018-03-19 ⋅ 3815 ⋅ 0 ⋅ 1

视频中讲解用到的hadoop_zookeeper_op压缩包脚本文件请问哪位有，能否共享下，多谢了

在 impala 的 shell 命令窗口，执行删除表的命令，执行报错，表无法删除？ by liwei131313

https://www.hainiubl.com/topics/473? 2018-03-20 ⋅ 12303 ⋅ 0 ⋅ 8

[dc1.com:21001] > drop table sv_feedback ; Query: drop table sv_feedback ERROR: ImpalaRuntimeException: Error making ‘dropTable‘ RPC to Hive Metastore: CAUSED BY: MetaException: java.lang.IllegalArgumentException: java....

Python 中导入 BeautifulSoup 出错，已经安装成功的了？？？ by 卓丶H

https://www.hainiubl.com/topics/474? 2018-03-20 ⋅ 3315 ⋅ 0 ⋅ 3

![file](http://hainiubl.com/uploads/images/201803/20/2059/J3YwnEw2zo.png)

hive 和 hbase 整合，往分区表插入数据报错？ by liwei131313

https://www.hainiubl.com/topics/476? 2018-03-22 ⋅ 7100 ⋅ 0 ⋅ 6

1.创建有分区的表 CREATE TABLE hbase_table_1(key int, value string) partitioned by (day string) STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf1:val") TBLPROPERTIES ("hbase.table....

MySQL 安装问题安装 MySQL 时，到最后一部一直卡在 Starting serer 这一步不成功，为啥老提醒这一步时间很长？ by clouds

https://www.hainiubl.com/topics/477? 2018-03-23 ⋅ 5463 ⋅ 0 ⋅ 1

安装Mysql 时，到最后一部一直卡在Starting serer 这一步不成功，为啥老提醒这一步时间很长？ Beginning configuration step: Initializing Database [if necessary] Deleting Data folder shipped Attempting to run MySQL Server with --Initialize-insecure

cmd 中编译 class 文件，报错误，2 个非法字符？ by 爱抽烟的厨子

https://www.hainiubl.com/topics/479? 2018-03-27 ⋅ 3606 ⋅ 1 ⋅ 1

![file](http://hainiubl.com/uploads/images/201803/27/2208/38UMIhWZgg.png)

spark 可以将处理完的数据返回给 Web 吗？ by 菜鸟程序狗

https://www.hainiubl.com/topics/480? 2018-03-27 ⋅ 4101 ⋅ 0 ⋅ 1

spark可以将处理完的数据返回给web吗

赋值 float 浮点型错误？ by 爱抽烟的厨子

https://www.hainiubl.com/topics/483? 2018-03-28 ⋅ 3803 ⋅ 1 ⋅ 3

![file](http://hainiubl.com/uploads/images/201803/28/2208/KDsLYpsX7w.png)

MapReduce 编程模型对应哪个设计模式？ by Jianpan

https://www.hainiubl.com/topics/484? 2018-03-28 ⋅ 3527 ⋅ 0 ⋅ 1

MapReduce编程模型对应哪个设计模式？

关于 java 方法参数的疑惑? by 小鱼

https://www.hainiubl.com/topics/486? 2018-03-29 ⋅ 3999 ⋅ 0 ⋅ 1

``` /**获取角色对应权限*/ @RequestMapping("/listByRoleId") public CommonResult<List<MenuVo.ListByRoleIdVo>> listByRoleId(@Valid MenuParam.ListByRoleIdParam param){ return menuService.listByRoleId(param); } ``` ```...