程序启动后一个小时就蹦出：java.sql.SQLException: General error message from server: "Out of memory (Needed 3675264 bytes)"，求高人指点哪个参数不合适引起的？ 在此先谢过各位。服务器redhat 32位 mysql5.5.6，内存32G 2个cpu共八核
my.cnf 如下：# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:
# http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set=utf8# Here follows entries for some specific programs# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
character-set-server=utf8
character_set_client=utf8
back_log = 1000
max_connections = 3000
max_connect_errors = 30
table_cache = 4096
binlog_cache_size = 4M
max_heap_table_size = 64M
join_buffer_size = 16M
thread_cache_size = 32
thread_stack = 2048K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 32M
#default-character-set=gb2312
init_connect='SET NAMES utf8'
#collation-server=gbk_general_ci
skip-external-locking
key_buffer_size = 128M
max_allowed_packet = 32M
table_open_cache = 20480
sort_buffer_size = 16M
net_buffer_length = 64M
read_buffer_size = 8M
read_rnd_buffer_size = 64M
myisam_sort_buffer_size =64M
lower_case_table_names=1
query_cache_size = 64M
query_cache_limit = 8M
thread_concurrency = 16
slow_query_log =1
long_query_time = 6
log_slow_queries
#log_long_format
# 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 = /usr/local/mysql/data
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /usr/local/mysql/data
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 1024M
innodb_additional_mem_pool_size = 128M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50[mysqldump]
quick
max_allowed_packet = 32M[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
default-character-set = utf8
#character_set_server = gbk[isamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 32M
write_buffer = 32M[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 512M
read_buffer = 32M
write_buffer = 32M[mysqlhotcopy]
interactive-timeout[mysqld_safe]
open-files-limit = 5126
my.cnf 如下：# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:
# http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set=utf8# Here follows entries for some specific programs# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
character-set-server=utf8
character_set_client=utf8
back_log = 1000
max_connections = 3000
max_connect_errors = 30
table_cache = 4096
binlog_cache_size = 4M
max_heap_table_size = 64M
join_buffer_size = 16M
thread_cache_size = 32
thread_stack = 2048K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 32M
#default-character-set=gb2312
init_connect='SET NAMES utf8'
#collation-server=gbk_general_ci
skip-external-locking
key_buffer_size = 128M
max_allowed_packet = 32M
table_open_cache = 20480
sort_buffer_size = 16M
net_buffer_length = 64M
read_buffer_size = 8M
read_rnd_buffer_size = 64M
myisam_sort_buffer_size =64M
lower_case_table_names=1
query_cache_size = 64M
query_cache_limit = 8M
thread_concurrency = 16
slow_query_log =1
long_query_time = 6
log_slow_queries
#log_long_format
# 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 = /usr/local/mysql/data
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /usr/local/mysql/data
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 1024M
innodb_additional_mem_pool_size = 128M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50[mysqldump]
quick
max_allowed_packet = 32M[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
default-character-set = utf8
#character_set_server = gbk[isamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 32M
write_buffer = 32M[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 512M
read_buffer = 32M
write_buffer = 32M[mysqlhotcopy]
interactive-timeout[mysqld_safe]
open-files-limit = 5126
数据库日志里面 ：140617 5:29:55 [ERROR] /usr/sbin/mysqld: Out of memory (Needed 3675264 bytes)
InnoDB: mmap(3145728 bytes) failed; errno 12
版主大人，这估计就是报数据库内存超标了，my.cnf配置文件有些参数不合适，具体哪个能帮忙看看吗
140617 5:30:00 - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.key_buffer_size=2013265920
read_buffer_size=8388608
max_used_connections=358
max_threads=3000
thread_count=351
connection_count=351
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 808381 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.这个些列出的参数值指什么不是我配置文件设置的值，max_threads没有设置 难道有个默认的大小？
程序运行后 ps -aux看看mysql具体占用了多少内存
估计是返回的东西太大超出了内存