<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[HZAOLICHENG的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/HZAOLICHENG</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; HZAOLICHENG]]></copyright><item><title><![CDATA[apt-key 的解决方案]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/134342919</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/134342919</guid><author>HZAOLICHENG</author><pubDate>Fri, 10 Nov 2023 23:37:38 +0800</pubDate><description><![CDATA[https://www.wenmayi.com/post/6866.html]]></description><category></category></item><item><title><![CDATA[指定端口、IP地址、工作目录启动Jupyter Notebook]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/127428318</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/127428318</guid><author>HZAOLICHENG</author><pubDate>Thu, 20 Oct 2022 15:29:41 +0800</pubDate><description><![CDATA[关于指定端口、IP地址、工作目录启动Jupyter Notebook的代码。]]></description><category></category></item><item><title><![CDATA[如何在jupyter notebook中直接使用conda的其它虚拟环境]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108953979</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108953979</guid><author>HZAOLICHENG</author><pubDate>Wed, 07 Oct 2020 18:53:34 +0800</pubDate><description><![CDATA[在对应的虚拟环境中使用如下命令:
conda install nb_conda


]]></description><category></category></item><item><title><![CDATA[安装TensorFlow2.0建议命令]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108950006</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108950006</guid><author>HZAOLICHENG</author><pubDate>Wed, 07 Oct 2020 13:45:27 +0800</pubDate><description><![CDATA[根据官网要求的环境，建议使用
pip install tensorflow-gpu==2.0.0

]]></description><category></category></item><item><title><![CDATA[windows下cuda相关命令]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108532150</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108532150</guid><author>HZAOLICHENG</author><pubDate>Fri, 11 Sep 2020 12:51:43 +0800</pubDate><description><![CDATA[nvidia-sim : 查看cuda driver版本
nvcc --version : 查看tookit版本 cuda runtime版本


]]></description><category></category></item><item><title><![CDATA[更新pip]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108348742</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108348742</guid><author>HZAOLICHENG</author><pubDate>Tue, 01 Sep 2020 19:08:27 +0800</pubDate><description><![CDATA[python -m pip install --upgrade pip

]]></description><category></category></item><item><title><![CDATA[mysql密码等级配置]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108006912</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/108006912</guid><author>HZAOLICHENG</author><pubDate>Fri, 14 Aug 2020 16:08:45 +0800</pubDate><description><![CDATA[查看配置
SHOW VARIABLES LIKE 'validate_password%';
修改配置
SET GLOBAL validate_password_policy=LOW;


]]></description><category></category></item><item><title><![CDATA[Linux下安装MySQL]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/107591749</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/107591749</guid><author>HZAOLICHENG</author><pubDate>Sun, 26 Jul 2020 12:12:05 +0800</pubDate><description><![CDATA[安装MySQL

]]></description><category></category></item><item><title><![CDATA[numpy和pandas中的控制台如何显示所有的数据]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/107138682</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/107138682</guid><author>HZAOLICHENG</author><pubDate>Sun, 05 Jul 2020 14:36:27 +0800</pubDate><description><![CDATA[pd.options.display.max_columns = None
pd.options.display.max_rows = None

np.set_printoptions(threshold=np.inf)
或者
pandas:
pd.set_option('display.max_rows', None)
pd.set_option('display.max_columns', None)




]]></description><category></category></item><item><title><![CDATA[Redis集群启动时发生如下错误:Node hadoop103:7002 replied with error: ERR Invalid node address specified: hadoop1]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/106118392</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/106118392</guid><author>HZAOLICHENG</author><pubDate>Thu, 14 May 2020 13:49:01 +0800</pubDate><description><![CDATA[解决办法:把hadoop102换成对应的Ip,就是不用主机名，而用IP地址代替。
这是因为redis对主机名的支持不是很好。

]]></description><category></category></item><item><title><![CDATA[IDEAD中如何使用scala]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105939612</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105939612</guid><author>HZAOLICHENG</author><pubDate>Tue, 05 May 2020 21:42:01 +0800</pubDate><description><![CDATA[加入如下插件

&lt;build&gt;
    &lt;finalName&gt;WordCount&lt;/finalName&gt;
    &lt;plugins&gt;
        &lt;plugin&gt;
            &lt;groupId&gt;net.alchim31.maven&lt;/groupId&gt;
            &lt;artifact...]]></description><category></category></item><item><title><![CDATA[kafka服务启动之后，又自己挂掉]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105702763</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105702763</guid><author>HZAOLICHENG</author><pubDate>Thu, 23 Apr 2020 11:11:59 +0800</pubDate><description><![CDATA[产生这种情况很有可能是broker.id重复或者不一致了.

需要修改config/server.properties文件中的

broker.id为未使用过的id
要修改log路径下的 meta.properties




]]></description><category></category></item><item><title><![CDATA[Linux下mysql命令汇总]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105133559</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105133559</guid><author>HZAOLICHENG</author><pubDate>Fri, 27 Mar 2020 08:51:03 +0800</pubDate><description><![CDATA[启动服务
service mysqld start

停止服务
service mysqld stop

进入mysql安装目录bin/ 使用safe模式，进行重启：
./mysqld_safe --skip-grant-tables

使用root账户，无密码登录，修改root用户密码
mysql -u root
use mysql
update user set password=PASSWO...]]></description><category></category></item><item><title><![CDATA[You don't have permission to access /ganglia on this server.]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105113158</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105113158</guid><author>HZAOLICHENG</author><pubDate>Thu, 26 Mar 2020 10:54:36 +0800</pubDate><description><![CDATA[第一次修改的配置:
sudo vim /etc/httpd/conf.d/ganglia.conf


还是无法访问.
第二次修改:

重启服务，可以访问了!

]]></description><category></category></item><item><title><![CDATA[kafka出现幽灵事件]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105091768</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105091768</guid><author>HZAOLICHENG</author><pubDate>Wed, 25 Mar 2020 11:57:59 +0800</pubDate><description><![CDATA[zookeeper启动之后，启动集群的群起kafka无响应，或者只是一个启动了。
方案一:

检查防火墙是否关闭。
方案二:
如果关闭，可以删除zookeeper中的version-2(zoo.config配置的文件数据路径)文件
kafka的log.dirs配置的路径下的文件删除和kafka安装目录下的logs删除.
所有的删除都是基于关闭所有服务之后，进行的。

注:kafka中server....]]></description><category></category></item><item><title><![CDATA[Linux中tail命令-f与-F的区别]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105022639</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105022639</guid><author>HZAOLICHENG</author><pubDate>Sun, 22 Mar 2020 09:33:40 +0800</pubDate><description><![CDATA[tail -f
该命令追踪的文件如果被删除或者修改名字，则停止追踪。
tail -F
该命令追踪的文件如果被删除或者修改名字，则继续追踪。


]]></description><category></category></item><item><title><![CDATA[Hive中数据去重的办法]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105006688</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105006688</guid><author>HZAOLICHENG</author><pubDate>Sat, 21 Mar 2020 11:34:39 +0800</pubDate><description><![CDATA[数据量小的时候无所谓，数据量大的情况下，由于COUNT DISTINCT操作需要用一个Reduce Task来完成，这一个Reduce需要处理的数据量太大，就会导致整个Job很难完成，一般COUNT DISTINCT使用先GROUP BY再COUNT的方式替换：方法一:
select name,count(distinct(related_id)) from emp group by name;
...]]></description><category></category></item><item><title><![CDATA[JVM堆内存溢出解决办法java.lang.OutOfMemoryError: Java heap space]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105004749</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105004749</guid><author>HZAOLICHENG</author><pubDate>Sat, 21 Mar 2020 10:21:57 +0800</pubDate><description><![CDATA[在使用Hadoop运行任务时，很有可能因为硬件资源不够而造成堆内存溢出
解决办法:
在yarn-site.xml中加入如下代码:
&lt;property&gt;	
	&lt;name&gt;yarn.scheduler.maximum-allocation-mb&lt;/name&gt;
	value&gt;2048&lt;/value&gt;
&lt;/property&gt;

&lt;pr...]]></description><category></category></item><item><title><![CDATA[Maven中打jar包时需要带入依赖，需要加入的插件]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105003483</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/105003483</guid><author>HZAOLICHENG</author><pubDate>Sat, 21 Mar 2020 08:54:09 +0800</pubDate><description><![CDATA[插件代码:
&lt;!-- Maven Assembly Plugin --&gt;
&lt;plugin&gt;
	&lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
	&lt;artifactId&gt;maven-assembly-plugin&lt;/artifactId&gt;
	&lt;version&gt;2.4.1&lt;...]]></description><category></category></item><item><title><![CDATA[Hive中的动态分区]]></title><link>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/104997300</link><guid>https://blog.youkuaiyun.com/HZAOLICHENG/article/details/104997300</guid><author>HZAOLICHENG</author><pubDate>Fri, 20 Mar 2020 19:53:46 +0800</pubDate><description><![CDATA[Hive中的动态分区:


创建表的时候，有两个字段
进行数据插入的时候，传入了三个字段，根据最后一个字段deptno的值进行分区


]]></description><category></category></item></channel></rss>