連接mysql，結果出錯：
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ERROR 1040 (HY000): Too many connections
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去修改mysql的配置文件，然后添加：
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root@bogon:logs
# vi /etc/my.cnf
[mysqld]
lower_case_table_names=1
lower_case_table_names=0
lower_case_table_names=1
datadir=
/var/lib/mysql
socket=
/var/lib/mysql/mysql
.sock
max_connections=100
max_user_connections=100
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used (fedora >= 15).
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mysqld according to the
# instructions in http://fedoraproject.org/wiki/Systemd
user=mysql
# Semisynchronous Replication
# uncomment next line on MASTER
;plugin-load=rpl_semi_sync_master=semisync_master.so
# uncomment next line on SLAVE
;plugin-load=rpl_semi_sync_slave=semisync_slave.so
# Others options for Semisynchronous Replication
;rpl_semi_sync_master_enabled=1
;rpl_semi_sync_master_timeout=10
;rpl_semi_sync_slave_enabled=1
;performance_schema
[mysqld_safe]
log-error=
/var/log/mysqld
.log
pid-
file
=
/var/run/mysqld/mysqld
.pid
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然后重啟mysqld：
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oot@bogon:logs
# service mysqld restart
Stopping mysqld: [ OK ]
Starting mysqld: [ OK ]
root@bogon:logs
#
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然后重新連接試試，就可以了：
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root@bogon:logs
# mysql -u root -p openfire_schoolike
Enter password:
Reading table information
for
completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection
id
is 440
Server version: 5.5.44-cll-lve MySQL Community Server (GPL) by Atomicorp
Copyright (c) 2000, 2015, Oracle and
/or
its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and
/or
its
affiliates. Other names may be trademarks of their respective
owners.
Type
'help;'
or
'\h'
for
help. Type
'\c'
to
clear
the current input statement.
mysql>
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【總結】
當連接mysql時，出現：
ERROR 1040 (HY000): Too many connections
的錯誤時：
去增加mysql的最大連接數即可：
修改mysql的配置文件：
/etc/my.cnf
在[mysqld]字段中增加配置：
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max_connections=100
max_user_connections=100
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當然可以根據自己需要，設置更大的值。
然后再重啟mysqld：
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service mysqld restart
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即可正常連接mysql。