１.首先请检查ndo2db的进程是不是二个

nagios 16825 0.0 0.1 6784 396 ? Ss 19:05 0:00 /usr/local/nagios/bin/ndo2db -c /usr/l

nagios 17032 0.0 0.3 6784 1268 ? S 19:09 0:00 /usr/local/nagios/bin/ndo2db -c

2、检查nagios.log日志看看最后有没有

could not safely copy module '/usr/local/nagios/bin/ndomod-3x.o' 这样的错误

如果是下面这样是正确的

ndomod: NDOMOD 1.4b7 (10-31-2007) Copyright (c) 2005-2007 Ethan Galstad (nagios@nagios.org)

[1272020945] ndomod: Successfully connected to data sink. 4897 queued items to flush.

[1272020951] ndomod: Successfully flushed 4897 queued items to data sink.

[1272020951] Event broker module '/usr/local/nagios/bin/ndomod-3x.o' initialized successfully.

上面只是检查工作，解决方法如下

1、安装nagios3.0 如果是2.9的朋友可以升级安装、升级安装方法的方法很简单

#cd /usr/local/

#cp -r nagios/ nagios2.9

#cd /etc/init.d/

#cd nagios nagios2.9

#cp nagios nagios2.9

#tar -zvxf nagios-3.0.3.tar.gz

#cd nagios-3.0.3

# ./configure --with-command-group=nagios

#make all

#make install

#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

可能会报comments downtime警告信息一个错误critical

vi /usr/local/nagios/etc/nagios.cfg

#comment_file=/usr/local/nagios/var/comments.dat 加上#

#downtime_file=/usr/local/nagios/var/downtime.dat 加上#

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg 在执行就不会报了

然后在执行下面

cd /usr/local/nagios/var/

cat comments.dat >>retention.dat

cat downtime.dat >>retention.dat

critical错误解决

check_result_buffer_slots=4096 加上#

service nagios restart

2、ndoutils-1.4b7安装此版块、其他版本可能会出程序问题、安装方法如下

tar zxvf ndoutils-1.4b7.tar.gz

cd ndoutils-1.4b7

./configure --with-mysql-lib=/usr/lib/mysql/ --with-mysql-inc=/usr/include/mysql/

cp ndomod-3x.o /usr/local/nagios/bin/ndomod-3x.o

cp ndo2db-3x /usr/local/nagios/bin/ndo2db

cp ndo2db.cfg /usr/local/nagios/etc/

cp ndomod.cfg /usr/local/nagios/etc/

进入拷贝的目录给文件加入到nagios用户组

chown nagios:nagios ndo2db.cfg ndomod.cfg

chown nagios:nagios ndomod-3x.o ndo2db

然后修改ndo2db.cfg ndomod.cfg配置文件

cat /usr/local/nagios/etc/ndo2db.cfg |grep -v '^#'|sed /^$/d

ndo2db_user=nagios

ndo2db_group=nagios

socket_type=tcp

socket_name=/usr/local/nagios/var/ndo.sock

tcp_port=5668

db_servertype=mysql

db_host=127.0.0.1

db_port=3306

db_name=cacti

db_prefix=npc_

db_user=cactiuer

db_pass=cactiuser

max_timedevents_age=1440

max_systemcommands_age=10080

max_servicechecks_age=10080

max_hostchecks_age=10080

max_eventhandlers_age=44640

debug_level=1

debug_verbosity=1

debug_file=/usr/local/nagios/var/ndo2db.debug

max_debug_file_size=1000000

cat /usr/local/nagios/etc/ndomod.cfg |grep -v '^#'|sed /^$/d

instance_name=default

output_type=tcpsocket

output=127.0.0.1

tcp_port=5668

output_buffer_items=5000

buffer_file=/usr/local/nagios/var/ndomod.tmp

file_rotation_interval=14400

file_rotation_timeout=60

reconnect_interval=15

reconnect_warning_interval=15

data_processing_options=-1

config_output_options=2

最后看nagios.cfg最后一行配置文件是否正确

broker_module=/usr/local/nagios/bin/ndomod-3x.o config_file=/usr/local/nagios/etc/ndomod.cfg

这行要和文件和路径对应好(===我属于这种情况===)

修改完成后重启ndo2db

kill ndo2db运行的进程

/usr/local/nagios/bin/ndo2db -c /usr/local/nagios/etc/ndo2db.cfg 然后执行重启

ps aux

nagios 16825 0.0 0.1 6784 396 ? Ss 19:05 0:00 /usr/local/nagios/bin/ndo2db -c

nagios 17032 0.0 0.3 6784 1268 ? S 19:09 0:00 /usr/local/nagios/bin/ndo2db -c

参考：http://blog.sina.com.cn/s/blog_645e2f0b010135tf.html