目前我已经构建了一个PHP脚本来将大型数据集导入到Innodb表中。 该脚本从文件读取记录,构建多个查询(数据高度关联)并将其插入数据库。我在一个新的用一个内核和2GB内存构建的debian虚拟机上创建了这个脚本。PHP-MYSQL-Innodb缓慢插入
要清楚,新鲜我的意思是这是一个干净的图像,只有包mysql-server mysql-client和php5安装。
在数据文件的虚拟机2(每个60MB +)中运行脚本时,在8秒钟内完成超过5,000条记录。
然后我将这个脚本移到了当前存放数据的服务器上,并且将保存数据库。该服务器拥有28GB RAM和2个XEON(6核)处理器。这也是全新安装,默认安装了mysql-client,mysql-server和php5-cli。清楚的是,当脚本开始并且服务器没有运行除SSH和标准系统进程以外的其他进程时,数据库为空。
在此服务器上运行脚本时,其移动速度非常慢(30秒,仅插入180条记录)。
我试过在my.cnf文件中跳过名字解析,但它似乎什么都不做。当脚本运行时,如果我在mysql中查看进程列表,我会在“释放项目”状态中不断查看插入查询。任何关于什么可能导致经济放缓的想法?
这里是服务器的问题给予::
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/english
skip-external-locking
skip-name-resolve
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
#
# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf.
#
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
如果您需要准确答案,您可能需要提供更多信息。这个问题可能与你的mysql配置文件... – Jocelyn 2012-08-09 21:34:53
它可能是任何数量的东西。还有什么在服务器上运行?什么是网络流量?公羊使用?哪些cron作业正在运行?数据库中有多少行?你的数据库模式是什么?等等等...请尝试本地化你的问题,并提出具体的问题。我们无法登录到您的服务器并为您解决问题。 – cegfault 2012-08-09 23:29:25
显示准备并将SQL插入到db的代码 – itsols 2012-08-10 01:01:29