关于 “” 的搜索结果, 共 2411 条






oozie 样例运行报错,求解决? by Lwisez Lwisez

https://hainiubl.com/topics/75240? 2020-07-25 ⋅ 2073 ⋅ 0 ⋅ 1
![file](http://hainiubl.com/uploads/images/202007/25/4276/4qGxfQBBpH.png) ![file](http://hainiubl.com/uploads/images/202007/25/4276/AMKDVdgFdg.png)

如何建立一个健康的集群 by 小菜牛 小菜牛

https://hainiubl.com/topics/75241? 2020-07-25 ⋅ 2866 ⋅ 2 ⋅ 1
请多多 快照 不要怕麻烦 。![file](http://hainiubl.com/uploads/images/202007/25/4329/8yzjJC6Ro8.png) ![file](http://hainiubl.com/uploads/images/202007/25/4329/XYyd7wgBrm.png) 快照多多 就可以随意挥霍 不怕报错,最好把每个阶段,每个虚拟机都弄快...

oozie 启动失败,求问原因? by BabylonSun BabylonSun

https://hainiubl.com/topics/75242? 2020-07-25 ⋅ 2315 ⋅ 0 ⋅ 1
![file](http://hainiubl.com/uploads/images/202007/25/4232/50xEPCcjMq.png)![file](http://hainiubl.com/uploads/images/202007/25/4232/7uj9UdwYuP.png) 报错信息如上,麻烦老师解答一下~:smile:

请问一下,我这个 VPN 连接不上应该改哪里呢? by LUNLI LUNLI

https://hainiubl.com/topics/75243? 2020-07-26 ⋅ 5919 ⋅ 0 ⋅ 1
我vpn输入了用户名和密码 显示连接上了,但是报错 This computer's apparent public IP address was not different after connecting to hainiuclient. It is still ..... 然后我ping nn1.hadoop (etc/hosts配置过了)也ping不到 request timeout 请问我还应该...

hive 的动态分区和静态分区的区别? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75244? 2020-07-26 ⋅ 2627 ⋅ 0 ⋅ 2
是否只在于 动态分区不需要指定路径,而静态分区需要指定路径? 对于严格模式,是否不可以用join查询?

hive 二级分区,新增子分区怎么操作 by 331571815 331571815

https://hainiubl.com/topics/75245? 2020-07-26 ⋅ 4003 ⋅ 0 ⋅ 1
1. 分区表结构如下 CREATE EXTERNAL TABLE ( name STRING ) PARTITIONED BY (sex string,age int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' location '/hive/warehouse/ccdb1.db/student' 2. 表建立后新增分区 alter table student add IF NOT EXISTS pa...

Mac 系统下使用 SecureCRT 连接 Linux 虚拟机,提示 connection refused? by 海牛妈妈 海牛妈妈

https://hainiubl.com/topics/75246? 2020-07-26 ⋅ 3875 ⋅ 0 ⋅ 2
第一:填写ip ![file](http://hainiubl.com/uploads/images/202007/26/4302/Ktst4SSlBI.png) 虚拟机的ip是![file](http://hainiubl.com/uploads/images/202007/26/4302/qHwaMNp7X2.png) 第二:虚拟机已开启ssh![file](http://hainiubl.com/uploads/images/202007/26/...

跑 etl jar 包一直报空指针,求指导? by BabylonSun BabylonSun

https://hainiubl.com/topics/75247? 2020-07-27 ⋅ 2156 ⋅ 0 ⋅ 1
![file](http://hainiubl.com/uploads/images/202007/27/4232/PsrVeKPs4y.png)

leader 选举机制中 <sid,zxid> 什么意思??? by 小菜牛 小菜牛

https://hainiubl.com/topics/75248? 2020-07-27 ⋅ 3095 ⋅ 1 ⋅ 1
![file](http://hainiubl.com/uploads/images/202007/27/4329/hoWFOzRA76.png)

请问一下,我的 hive 里 001 的分隔符并不显示 请问是为什么呢? by LUNLI LUNLI

https://hainiubl.com/topics/75249? 2020-07-29 ⋅ 3626 ⋅ 0 ⋅ 5
Insert overwrite directory 'hdfs://ns1/user/lunli/output1' row format delimited fields terminated by '\001' stored as textfile select * from uis_table4 where dt = '20141228' and aid like '8d%' limit 100; 我写了这个 看老师之后的输出是个未知字...

关于 hive 在 eclipse 上 pom 文件出错的问题? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75250? 2020-07-29 ⋅ 2374 ⋅ 1 ⋅ 10
已经照着老师的方法把pentaho文件放入maven的org目录下,但是还是显示pom出错,并且在dependencies中无法找到mysql驱动。 请问是什么原因呀? ![file](http://hainiubl.com/uploads/images/202007/29/4064/uWZfnoO4Lr.png) ![file](http://hainiubl.com/upload...

如何在 join 的 mapper 阶段 不同表来自多个输入时,如何指定对应的输入文件? by 羽翔 羽翔

https://hainiubl.com/topics/75251? 2020-07-29 ⋅ 2466 ⋅ 0 ⋅ 4
![file](http://hainiubl.com/uploads/images/202007/29/4325/DqXy4dK9US.png) 上图所示,不同的文件时 通过 两个数据有不同的列来区分的 如果 恰好两个表都有相同的列 ,我们如何区分?

请问一下,hive runner 我在 setup 的时候 eclipse 上报错 有点完全没有头绪。。是哪里错了呢? by LUNLI LUNLI

https://hainiubl.com/topics/75252? 2020-07-29 ⋅ 2869 ⋅ 0 ⋅ 10
在hive runner跑在eclipse上的时候报错: ``` Logging initialized using configuration in file:/Users/lunli/eclipse-workspace/hn_txclass_hive_tp1/target/classes/hive-log4j2.properties Async: true Exception in thread "main" java.lang.RuntimeException:...

Paxos 算法与 ZooKeeper by AIZero AIZero

https://hainiubl.com/topics/75253? 2020-07-31 ⋅ 4195 ⋅ 5 ⋅ 0
<div style="text-align:center"><b>Paxos算法</b></div> 解决分布式一致性问题,即一个分布式系统中的各个进程如何就某个值达成一致 Paxos中的角色 1. Proposer: 提出提案 (Proposal)。Proposal信息包括提案编号 (Proposal ID) 和提议的值 (Value)。 2. Accept...

hive 自定义 udaf 的缓冲区集群工作原理是什么? by Balder-Chang Balder-Chang

https://hainiubl.com/topics/75254? 2020-08-01 ⋅ 2904 ⋅ 0 ⋅ 3
问两个问题: 1.MyAvgUDAF这个例子中,那个自定义缓冲区不擦写好像也没有问题,我们这个算平均值的例子是不是可以不擦除? 2![file](http://hainiubl.com/uploads/images/202008/01/4290/LwNYiij8qZ.png)这个自定义缓冲区在分布式环境下运行时,是怎么个原理,是每一...

请问一下,nginx 的这个报错是什么原因呢? by LUNLI LUNLI

https://hainiubl.com/topics/75255? 2020-08-02 ⋅ 2803 ⋅ 0 ⋅ 3
我在验证nginx的conf文件时报以下错:我是在自己代码修改之后没发现问题 之后直接粘贴了老师给的代码也报这个错,请问这个应该是什么原因呢? invalid port in resolver "fe80::21c:42ff:fe00:18%eth0" in /usr/local/nginx/conf/nginx.conf:122 configuration fil...

flume 相关? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75256? 2020-08-02 ⋅ 2212 ⋅ 0 ⋅ 6
![file](http://hainiubl.com/uploads/images/202008/02/4064/YTUJB7a43G.png) 按照老师的写法改了 netcat_flume.properties 文件 执行启动flume agent服务端时,出现了以上错误 请问老师错误的原因是什么啊 0-0

请问一下,telnet 10086 connection refused 我应该做哪些检查呢? by LUNLI LUNLI

https://hainiubl.com/topics/75257? 2020-08-04 ⋅ 2727 ⋅ 0 ⋅ 2
10086端口连接不上。。 如果要换一个端口我应该从哪些里边选呢?

数据清洗相关? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75273? 2020-08-05 ⋅ 2292 ⋅ 0 ⋅ 5
![file](http://hainiubl.com/uploads/images/202008/05/4064/fs0gAGnDr8.png) 请问这个错误是如何发生的呢?

请问一下,这个 job control 的报错我应该检查什么东西呢? by LUNLI LUNLI

https://hainiubl.com/topics/75274? 2020-08-06 ⋅ 2692 ⋅ 0 ⋅ 3
Configuratin conf = this.getConf(); BaseMR.setConf(conf); TextFileToAvro t2a = new TextFileToAvro(); JobControl ctrl = new JobControl("ctrl1"); ctrl.addJob(t2a.getControlledJob()); JobRunnerUtilResult result = JobRunnerUtil.run(ctrl); Syste...

etl 相关? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75275? 2020-08-07 ⋅ 2068 ⋅ 0 ⋅ 6
执行 jar包 exec_mr 后 目标目录t2a只有表的行列,但是没有实际数据是怎么回事儿? ![file](http://hainiubl.com/uploads/images/202008/07/4064/17XenybjAq.png)

报表配置问题? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75276? 2020-08-07 ⋅ 2334 ⋅ 0 ⋅ 4
根据老师写的配置core-site.xml 出现以下错误,是哪里配置不对呢? ![file](http://hainiubl.com/uploads/images/202008/07/4064/xJgonM3jI7.png)

mapreduce 运行的时候 hdfs-default.xml 和 hdfs-site.xml 是在哪加载的? by 苏牛 苏牛

https://hainiubl.com/topics/75277? 2020-08-07 ⋅ 3432 ⋅ 1 ⋅ 0
首先 调用 FileSystem.get() 的时候会进入到FileSystem类中进行对象的获取,其中 通过 loadFileSystems() 这个方法不难发现使用了ServiceLoader 进行数据的加载 `ServiceLoader<FileSystem> serviceLoader = ServiceLoader.load(FileSystem.class);` 在遍历的时候 ```...

_MySQL_exceptions.ProgrammingError:(2014,“命令不同步;您现在无法运行此命令”)? by 小菜牛 小菜牛

https://hainiubl.com/topics/75278? 2020-08-08 ⋅ 2689 ⋅ 0 ⋅ 1
![file](http://hainiubl.com/uploads/images/202008/08/4329/Fx6odaTt40.png) ``` #-*- encoding: utf-8 -*- ''' db_test.py Created on 2019/6/25 11:14 Copyright (c) 2019/6/25, 海牛学院版权所有. @author: 潘牛 ''' from commons.until.db_util imp...

python 连接数据库报错,求解决? by Lwisez Lwisez

https://hainiubl.com/topics/75279? 2020-08-08 ⋅ 2445 ⋅ 0 ⋅ 1
运行今天上午的代码报错,百度了一下,说可能是MySQL服务没有开启,但我的MySQL是正常的,config里MySQL的密码和用户名也没有问题,所以就迷糊了,求大佬解答一波 ![file](http://hainiubl.com/uploads/images/202008/08/4276/xY1stWPQy3.png)

YARN 与 shuffle 简单学习 by HLSO6 HLSO6

https://hainiubl.com/topics/75280? 2020-08-09 ⋅ 3121 ⋅ 2 ⋅ 0
# YARN学习 - [YARN工作机制简单学习](#YARN工作机制简单学习) - [shuffle简单学习](#shuffle简单学习) - [Map端的shuffle](#Map端的shuffle) - [Reduce端的shuffle](#Reduce端的shuffle) ## YARN工作机制...

集群操作相关? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75281? 2020-08-10 ⋅ 2925 ⋅ 0 ⋅ 6
在执行Oozie操作的时候执行了下边的指令,出现了这样的问题![file](http://hainiubl.com/uploads/images/202008/10/4064/5gBbvQ4Iwv.png) 然后对集群文件名进行了修改 ![file](http://hainiubl.com/uploads/images/202008/10/4064/o3F7Dt59T3.png) 然后现在在集群也...

NaviCat 连接集群数据库问题? by wwwzhangnanwc wwwzhangnanwc

https://hainiubl.com/topics/75282? 2020-08-12 ⋅ 2849 ⋅ 0 ⋅ 1
拒绝访问是什么原因呢= = ![file](http://hainiubl.com/uploads/images/202008/12/4064/gLtcoZnxhl.png)

请问一下,eclipse 中 MyRunner 的报错是为什么呢? by LUNLI LUNLI

https://hainiubl.com/topics/75283? 2020-08-13 ⋅ 2512 ⋅ 0 ⋅ 2
在eclipse中我的这个函数报错 说不能加override符号 可是我查了tool里边的同名函数 是一样的参数类型和返回值 不知道为什么不能用override,可能是我哪里写错了呢? 我把老师的myrunner粘贴过来也是一样的报错 但是老师的却可以用override 有点找不到原因 求帮助 谢...

\001 和 \002 区别???????????? by 小菜牛 小菜牛

https://hainiubl.com/topics/75284? 2020-08-13 ⋅ 3440 ⋅ 0 ⋅ 1
\001 和 \002区别????????????