在知道哪个Java进程CPU占用率过高以后： 1.使用命令 jstack PID 命令打印出CPU占用过高进程的线程栈，例如： jstack 2797 > 2797.txt ...
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JStack和Top分析Java进程CPU占用率 -
zabbix图形数据延迟问题版本:zabbix 4.0.16问题描述: 经典图形上缺少最新数据 原因:版本bug影响版本：4.0.16rc1，4.4.4rc2修复版本：4.0.17rc1[https:/...
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MySQL主从延迟详解MySQL的主从同步是一个很成熟的架构，优点为： ①在从服务器可以执行查询工作(读)，降低主(master)服务器压力; ②在从主服务器进行备份，避免备份期间影响主服务器服务...
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mysql 5.7 MHA集群故障切换服务器信息: manager: 192.168.28.184master: 172.16.2.185node: 172.16.2.186 172.16.0.171 192.1...
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mysql在线切换 GTID模式在线切换的版本要>=5.7.6 gitd_mode解释 OFF不产生GTID,Slave只接收不带GTID的事务 OFF_PERMISSIVE不产生GTID,Slave接收不...
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MGR 单主模式&多主模式MGR(组复制)两种运行模式 单主模式下,组复制具有自动选主功能，每次只有一个 server成员接受更新。单写模式group内只有一台节点可写可读，其他节点只可以读。对于gr...
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mysql 5.7 主从参数问题 replicate_wild_do_table
问题: [Warning] Slave SQL for channel 'master06': Worker 1 failed executing transaction '...
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转载:闲话高并发的那些神话，看京东架构师如何把它拉下神坛
转载:闲话高并发的那些神话，看京东架构师如何把它拉下神坛 高并发也算是这几年的热门词汇了，尤其在互联网圈，开口不聊个高并发问题，都不好意思出门。高并发有那么邪乎吗？动不动就千...
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高并发系列文章第一篇:高并发和大流量解决方案本文将从宏观的角度上全方位剖析高并发和大流量解决方案 从一个面试题开始讲解:PHP如何解决网站大流量与高并发的问题？ 其实这个问题不光考察php的方向，更多的是考察你对高...
