<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_37190071的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_37190071</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_37190071]]></copyright><item><title><![CDATA[ES设置⽤户名和密码]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/129981329</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/129981329</guid><author>qq_37190071</author><pubDate>Thu, 06 Apr 2023 08:45:33 +0800</pubDate><description><![CDATA[设置完之后，数据会⾃动同步到其他节点。修改密码时，将第⼀步配置删除，然后重启。单独使⽤⼀个节点⽣成证书；执⾏设置⽤户名和密码的命令。执⾏完上⾯命令以后就可以在。⽂件，在⾥⾯添加如下内容。这个⽂件复制到其他节点下。其中⼀个节点设置密码即可。依次对每个账户设置密码。全部节点都要重启⼀遍。需要在配置⽂件中开启。个⽤户分别设置密码，⽬录下，证书⽂件名为。功能，并指定证书位置。]]></description><category></category></item><item><title><![CDATA[Java并发相关]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/129361299</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/129361299</guid><author>qq_37190071</author><pubDate>Mon, 06 Mar 2023 14:13:42 +0800</pubDate><description><![CDATA[Java并发]]></description><category></category></item><item><title><![CDATA[HashMap相关]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/129361202</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/129361202</guid><author>qq_37190071</author><pubDate>Mon, 06 Mar 2023 14:08:03 +0800</pubDate><description><![CDATA[HashMap的实现原理]]></description><category></category></item><item><title><![CDATA[Mysql explain命令详情]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/129295134</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/129295134</guid><author>qq_37190071</author><pubDate>Thu, 02 Mar 2023 10:01:59 +0800</pubDate><description><![CDATA[如果在extra列中看到Using index，说明MySQL正在使用覆盖索引，只扫描索引的数据，而不是按索引次序的每一行，它比按索引次序全表扫描的开销要少很多；然而，它可能会找到多个符合条件的行，此类索引访问只有当使用非唯一性索引或者唯一性索引的非唯一性前缀时才会发生。这一列总是包含一个编号，标识select所属的行，如果在语句中没有子查询或者联合查询，那么只会有唯一的select，于是每一行的这一列都将显示一个1。range范围扫描，是一个有限制的索引扫描，开始于索引的某一点，返回匹配这个值域的行。]]></description><category></category></item><item><title><![CDATA[linux修改时区为Asia/Shanghai]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/129194091</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/129194091</guid><author>qq_37190071</author><pubDate>Fri, 24 Feb 2023 09:21:45 +0800</pubDate><description><![CDATA[timedatectl set-timezone 'Asia/Shanghai']]></description><category></category></item><item><title><![CDATA[mysql主从同步+mycat2读写分离]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/127782130</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/127782130</guid><author>qq_37190071</author><pubDate>Thu, 10 Nov 2022 11:14:18 +0800</pubDate><description><![CDATA[mysql主从同步+mycat2读写分离]]></description><category></category></item><item><title><![CDATA[ES按照时间段分组统计之date_histogram]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/126608046</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/126608046</guid><author>qq_37190071</author><pubDate>Tue, 30 Aug 2022 17:32:38 +0800</pubDate><description><![CDATA[ES按照时间段分组统计之date_histogram]]></description><category></category></item><item><title><![CDATA[kafka消费者参数]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/126588570</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/126588570</guid><author>qq_37190071</author><pubDate>Mon, 29 Aug 2022 17:14:11 +0800</pubDate><description><![CDATA[一些kafka消费者参数]]></description><category></category></item><item><title><![CDATA[Kafka-kraft模式架构及部署流程]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/126467168</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/126467168</guid><author>qq_37190071</author><pubDate>Mon, 22 Aug 2022 16:11:23 +0800</pubDate><description><![CDATA[Kafka-kraft模式架构及部署流程]]></description><category></category></item><item><title><![CDATA[解决kafka主题分区数量限制消费速度的问题]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/125457478</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/125457478</guid><author>qq_37190071</author><pubDate>Mon, 22 Aug 2022 15:33:36 +0800</pubDate><description><![CDATA[解决kafka主题分区数量限制消费速度的问题]]></description><category></category></item><item><title><![CDATA[解决使用org.eclipse.paho.client.mqttv3连接mqtt导致内存溢出的bug]]></title><link>https://blog.youkuaiyun.com/qq_37190071/article/details/125457550</link><guid>https://blog.youkuaiyun.com/qq_37190071/article/details/125457550</guid><author>qq_37190071</author><pubDate>Fri, 01 Jul 2022 17:22:10 +0800</pubDate><description><![CDATA[解决使用org.eclipse.paho.client.mqttv3连接mqtt导致内存溢出的bug]]></description><category></category></item></channel></rss>