器量大者,福泽必厚
全部博文(587)
发布时间:2016-06-21 19:02:15
中午的时候,后端两台iis服务器的并发连接数突然大幅度的增加,于是zabbix报警,客服通知网站某些功能挂掉了!突增截图如下: 后端两台服务器iis并发连接数过多,导致nginx调度机也报警,并发连接数太多!怀疑问题 :1:被攻击 2:修改了代码,代码有问题上面两个问题都被查证了,没有!有人提出来添加we.........【阅读全文】
发布时间:2016-06-03 18:26:39
搭建好ansible后,在/etc/ansible/hosts 文件中添加如下:[all]192.168.220.141 ansible_ssh_user=root ansible_ssh_port=22 ansible_ssh_pass=root然后在机器上执行:[root@localhost ansible]# ansible all -m ping192.168.220.141 | UNREACHABLE! => { "changed": false, .........【阅读全文】
发布时间:2016-06-03 10:48:13
1:explain sql ? 在mysql5.6 下无论是insert/update/delete 都是可以的2:show create ?table tbname3:只导出表结构mysqldump -uroot -p'password' ?--no-data ?表名> biaoming.sql4: ?show index from ?tablename; ##一般一个表上最多有5个索引5:show table status like '表名'; #.........【阅读全文】
发布时间:2016-06-02 16:18:02
1:local&Remote backupsmysqldump can ?connect to local or remote serversmysqlhotcopy performs only local backupselect ?..... into outfilesnapshotlvm2:full & incremental ba lckupsA full backup includes all data managed by a mysql ?server at a given point timeAn incremental back.........【阅读全文】
发布时间:2016-06-02 15:22:18
查看redis日志发现有大量的附件信息:The message indicates that there's a fsync operation on the AOF file and it has been last for a little while, to protect your data from lose, redis will slow down to wait for that fsync. This often happens when:1. you have a slow disk, or2. you write too many.........【阅读全文】