rh436 - 错把“Netmask Bits”当“Netmask”

版本：

[root@desktop20 ~]# cat /proc/version 
Linux version 2.6.32-220.el6.x86_64 ([email protected]) (gcc version 4.4.5 20110214 (Red Hat 4.4.5-6) (GCC) ) #1 SMP Wed Nov 9 08:03:13 EST 2011

现象：

这两天在做一个redhat 6.2下基于GFS2的apache集群实验时，Service Group死活起不来，clvmd、cman挨个查一遍也没搞明白。

[root@node1 ~]# cd /var/log/cluster/
[root@node1 cluster]# cat rgmanager.log 
Jun 10 20:24:21 rgmanager [clusterfs] /dev/dm-5 already mounted
Jun 10 20:24:21 rgmanager [apache] Verifying Configuration Of apache:httpd
Jun 10 20:24:21 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf
Jun 10 20:24:21 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf > Succeed
Jun 10 20:24:21 rgmanager [apache] Stopping Service apache:httpd
Jun 10 20:24:21 rgmanager [apache] Checking Existence Of File /var/run/cluster/apache/apache:httpd.pid [apache:httpd] > Failed - File Doesn't Exist
Jun 10 20:24:21 rgmanager [apache] Stopping Service apache:httpd > Succeed
Jun 10 20:24:21 rgmanager [ip] 172.16.20.50/255.255.255.0 is not configured
Jun 10 20:24:21 rgmanager [clusterfs] Not umounting /dev/dm-5 (clustered file system)
[root@node1 cluster]# 

原因：

Google了半天才找到门路。。原来在资源“IP Address”里有个“Netmask Bits (optional)”选项，我把它当成了“Netmask”填了个“255.255.255.0”，但是“Netmask Bits (optional)”指的是子网掩码的位数，改成24后问题解决。

[root@node1 cluster]# clusvcadm -d haweb
Local machine disabling service:haweb...Success
[root@node1 cluster]# clusvcadm -e haweb -F
Local machine trying to enable service:haweb...Success
service:haweb is now running on node1.private.cluster20.example.com
[root@node1 cluster]# ls
rgmanager.log
[root@node1 cluster]# cat rgmanager.log 
Jun 10 21:07:20 rgmanager [apache] Verifying Configuration Of apache:httpd
Jun 10 21:07:20 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf
Jun 10 21:07:20 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf > Succeed
Jun 10 21:07:20 rgmanager [apache] Stopping Service apache:httpd
Jun 10 21:07:21 rgmanager [apache] Stopping Service apache:httpd > Succeed
Jun 10 21:07:21 rgmanager [ip] Removing IPv4 address 172.16.20.50/24 from eth1
Jun 10 21:07:31 rgmanager [clusterfs] Not umounting /dev/dm-5 (clustered file system)
Jun 10 21:07:38 rgmanager [clusterfs] /dev/dm-5 already mounted
Jun 10 21:07:38 rgmanager [ip] Link for eth1: Detected
Jun 10 21:07:38 rgmanager [ip] Adding IPv4 address 172.16.20.50/24 to eth1
Jun 10 21:07:38 rgmanager [ip] Pinging addr 172.16.20.50 from dev eth1
Jun 10 21:07:40 rgmanager [ip] Sending gratuitous ARP: 172.16.20.50 52:54:00:01:20:01 brd ff:ff:ff:ff:ff:ff
Jun 10 21:07:41 rgmanager [apache] Verifying Configuration Of apache:httpd
Jun 10 21:07:41 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf
Jun 10 21:07:41 rgmanager [apache] Checking Syntax Of The File /etc/httpd/conf/httpd.conf > Succeed
Jun 10 21:07:41 rgmanager [apache] Monitoring Service apache:httpd
Jun 10 21:07:41 rgmanager [apache] Checking Existence Of File /var/run/cluster/apache/apache:httpd.pid [apache:httpd] > Failed
Jun 10 21:07:41 rgmanager [apache] Monitoring Service apache:httpd > Service Is Not Running
Jun 10 21:07:42 rgmanager [apache] Starting Service apache:httpd
Jun 10 21:07:42 rgmanager [apache] Looking For IP Addresses
Jun 10 21:07:42 rgmanager [apache] 1 IP addresses found for haweb/httpd
Jun 10 21:07:42 rgmanager [apache] Looking For IP Addresses > Succeed -  IP Addresses Found
Jun 10 21:07:42 rgmanager [apache] Checking: SHA1 checksum of config file /apache/apache:httpd/httpd.conf
Jun 10 21:07:42 rgmanager [apache] Checking: SHA1 checksum > succeed
Jun 10 21:07:42 rgmanager [apache] Generating New Config File /apache/apache:httpd/httpd.conf From /etc/httpd/conf/httpd.conf
Jun 10 21:07:42 rgmanager [apache] Generating New Config File /apache/apache:httpd/httpd.conf From /etc/httpd/conf/httpd.conf > Succeed
Jun 10 21:07:42 rgmanager [apache] Starting Service apache:httpd > Succeed
[root@node1 cluster]# 

REF:

1. redhat 6.2 cluster

http://www.linux.com/community/forums/red-hat/redhat-62-cluster