我正在运行我自己开发的服务。
Ruby on Rails.3.2.11, Passenger, 和Apache2正在使用。
在有 100 多个注册用户同时访问该服务之前，它似乎运行良好。
当它发生时，我的服务完全冻结并且不会有任何响应（永远保持加载）
所以，我所能做的就是重新启动 Apache。它解决了片刻的问题，但它一次又一次地发生！
我认为在 Ruby on Rails App 中处理大约 100 个用户不会是什么大问题。
但我猜我的独特功能正在阻止这种情况。
我关心两件事。
last_active_at(datetime)每次加载时（每个页面和每次）都会更新所有注册用户所有注册用户
point在一天内第一次访问时将增加100（如果用户访问该服务，他可以获得100积分。但一天只能一次）
这也将在每个页面中进行检查。就像last_active_at
代码就是这样
application_controller.rb
class ApplicationController < ActionController::Base
before_filter :record_user_activity
def record_user_activity
if current_user
#Retrieving current_user
@myself_user = User.includes(:profile).find(current_user)
#Checking if current_user hasn't received bonus for today yet
if @myself_user.point_added_at.nil? || !@myself_user.point_added_at.today?
#Checking if current_user shows his online status to public(If so he can earn 100 points)
if @myself_user.profile.activity_invisible.blank?
plus_point(@myself_user, 100)
flash[:alert] = '100 points for today's bonus is added!'
@myself_user.touch :point_added_at
@myself_user.save
end
end
#Updating last_active_at(datetime)
if @myself_user.profile.activity_invisible.blank?
@myself_user.touch :last_active_at
@myself_user.save
else
@myself_user.touch :updated_at
@myself_user.save
end
end
end
end
这就是性能监控的结果。
请告诉我瓶颈问题是什么，以及如何解决它！
谢谢！
更新：
我的.cnf
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character_set-server=utf8
innodb_buffer_pool_size=384M
innodb_log_file_size=128M
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin
# binary logging format - mixed recommended
binlog_format=mixed
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
# where you replace <host>, <user>, <password> by quoted strings and
# <port> by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host = <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user = <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 768M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 100M
#innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 2
#innodb_lock_wait_timeout = 50
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
default_character_set=utf8
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
更新2：
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 256M
join_buffer_size = 1M
thread_cache = 8
thread_concurrency = 8
thread_cache_size = 60
query_cache_size = 32M
max_connections = 200
max_allowed_packet = 1M
table_open_cache = 256
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 1M
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character_set-server=utf8
innodb_buffer_pool_size=384M
innodb_log_file_size=128M