Openstack 一直在调度中解决Too many connections

admin

查看日志/var/log/nova/nova-scheduler.log,/var/log/nova/nova-compute.log,均无报错
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查看/var/log/nova/nova-conductor.log报错为
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2 J+ N4 \: Q6 m5 d# t6 y2017-02-06 09:27:04.976 2206 ERROR oslo_messaging.rpc.server OperationalError: (pymysql.err.OperationalError) (1040, u'Too many connections')

. O  {) C9 x  ]5 a& W3 g2018-10-11 22:59:43.524 13733 ERROR neutron OperationalError: (pymysql.err.OperationalError) (1040, u'Too many connections') (Background on this error at: http://sqlalche.me/e/e3q8)
0 ]" t5 U9 @' K( o$ n/ K6 P2018-10-11 22:59:43.524 13733 ERROR neutron

修改mariadb配置文件

, e  j9 ?; n4 ?- j5 J; Z( E]# vim /etc/my.cnf.d/openstack.cnf
, f6 M, \- d6 N+ t2 R[mysqld]
; J6 ]( n7 X; C7 K3 b/ L' w/ b& N7 K5 nmax_connections = 4096
5 z" P; N8 z* m: ?- z3 T+ ~8 J, z修改系统打开数

]# vim /etc/security/limits.conf
*  soft nofile 65536
*  hard nofile 65536
# `: H+ a9 E2 l6 N+ }' B3 `5 e]# ulimit -SHn 65536
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, ?2 B+ \  I0 I* |: v4 X1 F$ }]# vim /etc/sysctl.conf
# max open files
fs.file-max = 65536
]# sysctl -p
/ G. }2 b; b% g2 l$ v# W2 T; c重启mariadb

]# systemctl restart mariadb
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