<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[v790873的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/v790873</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; v790873]]></copyright><item><title><![CDATA[java.lang.NoClassDefFoundError: org/apache/hadoop/fs/FSDataInputStream、spark节点无法正常提交任务]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/122695340</link><guid>https://blog.youkuaiyun.com/v790873/article/details/122695340</guid><author>v790873</author><pubDate>Wed, 26 Jan 2022 09:05:41 +0800</pubDate><description><![CDATA[Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/fs/FSDataInputStream、spark节点无法正常提交任务]]></description><category></category></item><item><title><![CDATA[CDH管理界面配置nginx代理]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/122085921</link><guid>https://blog.youkuaiyun.com/v790873/article/details/122085921</guid><author>v790873</author><pubDate>Wed, 22 Dec 2021 14:56:43 +0800</pubDate><description><![CDATA[如果没有配置proxy_set_header的话
首页中图表将无法正常显示
nginx参考配置
server {
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS, DELETE';
        add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqTok]]></description><category></category></item><item><title><![CDATA[Clickhouse Order by慢问题]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/121841207</link><guid>https://blog.youkuaiyun.com/v790873/article/details/121841207</guid><author>v790873</author><pubDate>Thu, 09 Dec 2021 19:24:47 +0800</pubDate><description><![CDATA[1.根据官网内容我们可以知道，不同的分布式引擎可以导致排序速度的快慢。
2.笔者这里使用的是ReplicatedReplacingMergeTree，但是同样的2张表结构，表数据量。
order by时 查询时长竟完全不同
原因：分区问题导致order by查询慢
1查询慢的表分区
PARTITION BY toYYYYMMDD(insert_time)

2查询快的表分区
PARTITION BY toYear(time)


...]]></description><category></category></item><item><title><![CDATA[安装/升级海豚调度资源管理：UnknownHostException]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/121370264</link><guid>https://blog.youkuaiyun.com/v790873/article/details/121370264</guid><author>v790873</author><pubDate>Wed, 17 Nov 2021 09:01:59 +0800</pubDate><description><![CDATA[[ERROR] 2021-11-16 11:08:21.000 org.apache.dolphinscheduler.common.utils.HadoopUtils:[180] - java.net.UnknownHostException: mycluster
java.lang.IllegalArgumentException: java.net.UnknownHostException: mycluster
	at org.apache.hadoop.security.SecurityUtil.b]]></description><category></category></item><item><title><![CDATA[dolphinscheduler海豚调度升级，woker节点启动失败报错。]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/121334973</link><guid>https://blog.youkuaiyun.com/v790873/article/details/121334973</guid><author>v790873</author><pubDate>Mon, 15 Nov 2021 16:06:06 +0800</pubDate><description><![CDATA[[ERROR] 2021-11-15 13:48:57.652 org.apache.dolphinscheduler.service.zk.ZookeeperOperator:[150] - isExisted key : /dolphinscheduler/nodes/worker/ld_hadoop01_hdfs_02/197.68.0.16:1234
java.lang.IllegalStateException: Expected state [STARTED] was [STOPPED]

处理]]></description><category></category></item><item><title><![CDATA[sqoop1连接数据库踩的大坑]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/121098933</link><guid>https://blog.youkuaiyun.com/v790873/article/details/121098933</guid><author>v790873</author><pubDate>Tue, 02 Nov 2021 14:21:59 +0800</pubDate><description><![CDATA[1.数据库连接问题
1.1 注意mysql的账号密码, sqoop对特殊符号有特殊处理
命令行参数应该是对特殊符号做了处理, 通过sqoop操作数据库时尽量不要包括特殊符号
-- 一些测试连接命令
sqoop list-databases --connect jdbc:mysql://localhost:3306 --username ReadOnly --password ReadOnly
sqoop list-databases --connect jdbc:mysql://服务器IP:3306 --u]]></description><category></category></item><item><title><![CDATA[处理 yum:“Couldn‘t open file /root/xvdd/repodata/repomd.xml“]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/119996225</link><guid>https://blog.youkuaiyun.com/v790873/article/details/119996225</guid><author>v790873</author><pubDate>Mon, 30 Aug 2021 14:23:17 +0800</pubDate><description><![CDATA[处理 yum:“Couldn’t open file /root/xvdd/repodata/repomd.xml”
报错明显：“Couldn’t open file /root/xvdd/repodata/repomd.xml”
经排查路径下不存在此XML文件
处理方式
可以通过更新以下路径中仓库配置文件
/etc/yum.repos.d

1.阿里云仓库配置文件
http://mirrors.aliyun.com/repo/Centos-7.repo

2.上传刚刚下载的阿里云仓库配置文件到/etc/y]]></description><category></category></item><item><title><![CDATA[pythong import  MySQLdb问题]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/115897257</link><guid>https://blog.youkuaiyun.com/v790873/article/details/115897257</guid><author>v790873</author><pubDate>Tue, 20 Apr 2021 10:56:51 +0800</pubDate><description><![CDATA[pythong import MySQLdb问题
安装第三方软件的时候总是出现下面得提示错误：

Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=‘pypi.org’, port=443): Max retries exceeded with url: /simple/pip/ (Caused by SS]]></description><category></category></item><item><title><![CDATA[最全elk7.1.1单机配置： ELK+Filebeat+Kafka！]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/114822567</link><guid>https://blog.youkuaiyun.com/v790873/article/details/114822567</guid><author>v790873</author><pubDate>Mon, 15 Mar 2021 11:01:34 +0800</pubDate><description><![CDATA[ELK单机配置
使用软件版本




applicationName
version




java
1.8


kafka
2.12-2.2.1


filbeat
7.1.1


logstash
7.1.1


elasticsearch
7.1.1


kibana
7.1.1


流程图
#mermaid-svg-Vbw8VbgyZjzpjxwv .label{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid]]></description><category></category></item><item><title><![CDATA[elasticSearch-Kibana单机配置：Kibana server is not ready yet]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/113701326</link><guid>https://blog.youkuaiyun.com/v790873/article/details/113701326</guid><author>v790873</author><pubDate>Fri, 05 Feb 2021 17:58:11 +0800</pubDate><description><![CDATA[elasticSearch-Kibana单机配置：Kibana server is not ready yet
出现这个问题的时候我们首先检查两个地方配置elasticSearch，Kibana  地址端口是否一致
出现问题最好查看elasticSearch的报错 更容易找到问题 即使浏览器打开 地址加：9200能正常访问也不代表正常启动
我们可以 在浏览器输入：http://es ip地址:端口/_cat/nodes?pretty
查看是否能够看到节点
错误会提示：
| { “error” : { “ro]]></description><category></category></item><item><title><![CDATA[springdata中internal.QueryExecutionRequestException: Not supported for DML operations]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/103222210</link><guid>https://blog.youkuaiyun.com/v790873/article/details/103222210</guid><author>v790873</author><pubDate>Sun, 24 Nov 2019 10:45:57 +0800</pubDate><description><![CDATA[报错：


org.springframework.dao.InvalidDataAccessApiUsageException: org.hibernate.hql.internal.QueryExecutionRequestException: Not supported for DML operations [delete from cn.lzh.springdata.pojo.Studen...]]></description><category></category></item><item><title><![CDATA[springboot，jpa 多对一查询Repeated column in mapping for entity]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/103217762</link><guid>https://blog.youkuaiyun.com/v790873/article/details/103217762</guid><author>v790873</author><pubDate>Sat, 23 Nov 2019 19:40:21 +0800</pubDate><description><![CDATA[报错代码


Caused by: javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to build Hibernate SessionFactory
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persiste...]]></description><category></category></item><item><title><![CDATA[springboot中Application run failed的报错]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/103163972</link><guid>https://blog.youkuaiyun.com/v790873/article/details/103163972</guid><author>v790873</author><pubDate>Wed, 20 Nov 2019 16:01:01 +0800</pubDate><description><![CDATA[org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tomcatS...]]></description><category></category></item><item><title><![CDATA[Bootstrap中Cannot read property 'locales' of undefined at bootstrap-table-zh-CN.min.js:10的问题]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102770950</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102770950</guid><author>v790873</author><pubDate>Thu, 31 Oct 2019 09:10:57 +0800</pubDate><description><![CDATA[弄了很久最后 发现是导入的先后顺序问题

之前的代码



更改之后



之后控制台就没报错了
]]></description><category></category></item><item><title><![CDATA[jsp设置页面基本路径方法]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102768900</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102768900</guid><author>v790873</author><pubDate>Tue, 29 Oct 2019 15:10:41 +0800</pubDate><description><![CDATA[&lt;%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%&gt;
&lt;!-- http://localhost:8080/logisti...]]></description><category></category></item><item><title><![CDATA[Maven项目build时出现No compiler is provided in this environment的处理]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102730211</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102730211</guid><author>v790873</author><pubDate>Sun, 27 Oct 2019 10:56:01 +0800</pubDate><description><![CDATA[build时出现：

[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?



在菜单栏中&gt;Window--&gt;preferences--&gt;Java--&gt;Installed JREs



选择添加JDK环境即可
...]]></description><category></category></item><item><title><![CDATA[spirngmvc请求参数中文乱码问题]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102687181</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102687181</guid><author>v790873</author><pubDate>Wed, 23 Oct 2019 22:00:35 +0800</pubDate><description><![CDATA[使用get表单提交后天出现中文乱码问题



post提交解决方案：在Webcontent目录下WEB-INF目录下web.xml文件中添加一下代码


&lt;filter&gt;
	&lt;filter-name&gt;CharacterEncodingFilter&lt;/filter-name&gt;
	&lt;filter-class&gt;org.springframework.we...]]></description><category></category></item><item><title><![CDATA[Spring和MyBatis框架整合，简单springconfig.xml文件配置]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102670820</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102670820</guid><author>v790873</author><pubDate>Mon, 21 Oct 2019 20:07:04 +0800</pubDate><description><![CDATA[&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!-- Spring配置的根元素+约束 --&gt;
&lt;beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns...]]></description><category></category></item><item><title><![CDATA[spring中aop注解配置IllegalArgumentException]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102642154</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102642154</guid><author>v790873</author><pubDate>Sun, 20 Oct 2019 21:51:37 +0800</pubDate><description><![CDATA[异常：Error creating bean with name 'userServiceImpl' defined in file [I:\AmyCode\G6-AOP\bin\cn\zj\spring\service\impl\UserServiceImpl.class]: Initialization of bean failed; nested exception is java.lang...]]></description><category></category></item><item><title><![CDATA[spring中JDK动态代理简单案例java.lang.ClassCastException报错]]></title><link>https://blog.youkuaiyun.com/v790873/article/details/102631801</link><guid>https://blog.youkuaiyun.com/v790873/article/details/102631801</guid><author>v790873</author><pubDate>Sat, 19 Oct 2019 22:28:06 +0800</pubDate><description><![CDATA[com.sun.proxy.$Proxy13 cannot be cast to cn.zj.spring.service.impl.Use



结果发现是





使用JDK创建代理时要注意，ctrl+1创建时需要选择接口接收

最后选择

UserService proxyObject = jdkDynamicProxyHandler.getProxyObject(UserServic...]]></description><category></category></item></channel></rss>