操作3 mongodb和mysql 开启慢查询日志 ，以及mongodb从配置文件启动

1.

mongodb从配置文件启动

创建配置文件：/usr/local/mongodb/etc/mongodb.conf

配置文件的内容为：

#Directory and relavent set
dbpath = /var/mongodb/data
logpath = /var/mongodb/logs/log.log
profile=2
slowms=100
#repairpath = /var/mongodb/repair
pidfilepath = /usr/local/mongodb/mongodb.pid
#directoryperdb = true
#sysinfo = true
#verbose = true
#logappend = true
#cpu = true

#Network and security set
noauth = true
#port = 8888
#maxConns = 1024
fork = true

#Management
#nohttpinterface = true
#rest = true
#quota = true
#quotaFiles = 1024
#nssize = 16
#syncdelay = 5

其中

profile=2代表打印所有

slowms代表超过几秒的操作。

结果输出到logpath中

noauth代表启动账户验证

2.

通过配置文件启动

/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/etc/mongodb.conf

启动成功后显示：

about to fork child process, waiting until server is ready for connections.
forked process: 389
child process started successfully, parent exiting

3.mysql5.6开启慢查询

vim my.cnf

代表超过一秒的查询为慢查询，慢查询写入文件mysql-slow.log文件中

log-error=/var/log/mysql-error.log
slow_query_log=1
slow_query_log_file=/www/web_logs/mysql/mysql-slow.log

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