[Linux-cluster] Cluster IP alias doesn't work
haydar Ali
haydar2906 at hotmail.com
Thu Jul 21 18:54:52 UTC 2005
Hi,
I setuped and configured a clustered NFS.
I have created 2 quorum partitions /dev/sdd2 and /dev/sdd3 (100MB each).
I created another huge partition /dev/sdd4 (over 600GB) and formatted it in
ext3 file system.
I installed the cluster suite on the 1st node (RAC1) and 2nd node RAC2 and I
started the rawdevices on the two nodes RAC1 and RAC2 (it's OK).
This the hosts file /etc/host on the node1 (RAC1) and node2 RAC2
Do not remove the following line, or various programs
# that require network functionality will fail.
#127.0.0.1 rac1 localhost.localdomain localhost
127.0.0.1 localhost.localdomain localhost
#
# Private hostnames
#
192.168.253.3 rac1.project.net rac1
192.168.253.4 rac2.project.net rac2
192.168.253.10 raclu.project.net raclu
192.168.253.20 raclu_nfs.project.net raclu_nfs
#
# Hostnames used for Interconnect
#
1.1.1.1 rac1i.project.net rac1i
1.1.1.2 rac2i.project.net rac2i
#
192.168.253.5 infra.project.net infra
192.168.253.7 ractest.project.net ractest
#
I generated a /etc/cluster.conf on the 1st node RAC1 as following:
# This file is automatically generated. Do not manually edit!
[cluhbd]
logLevel = 4
[clupowerd]
logLevel = 4
[cluquorumd]
logLevel = 4
[cluster]
alias_ip = raclu
name = project
timestamp = 1121957827
[clusvcmgrd]
logLevel = 4
[database]
version = 2.0
[members]
start member0
start chan0
name = rac1
type = net
end chan0
id = 0
name = rac1
powerSwitchIPaddr = rac1
powerSwitchPortName = unused
quorumPartitionPrimary = /dev/raw/raw1
quorumPartitionShadow = /dev/raw/raw2
end member0
start member1
start chan0
name = rac2
type = net
end chan0
id = 1
name = rac2
powerSwitchIPaddr = rac2
powerSwitchPortName = unused
quorumPartitionPrimary = /dev/raw/raw1
quorumPartitionShadow = /dev/raw/raw2
end member1
[powercontrollers]
start powercontroller0
IPaddr = rac1
login = unused
passwd = unused
type = null
end powercontroller0
start powercontroller1
IPaddr = rac2
login = unused
passwd = unused
type = null
end powercontroller1
[services]
start service0
checkInterval = 0
start device0
start mount
start NFSexports
start directory0
start client0
name = *
options = rw
end client0
name = /u04
end directory0
end NFSexports
forceUnmount = yes
fstype = ext3
name = /u04
options = rw,nosuid,sync
end mount
name = /dev/sdd4
sharename = None
end device0
name = nfs_project
start network0
ipAddress = 192.168.253.20
end network0
preferredNode = rac2
relocateOnPreferredNodeBoot = yes
end service0
I generated a /etc/cluster.conf on the 2nd node RAC2 as following:
# This file is automatically generated. Do not manually edit!
[cluhbd]
logLevel = 4
[clupowerd]
logLevel = 4
[cluquorumd]
logLevel = 4
[cluster]
alias_ip = raclu
name = project
timestamp = 1121957827
[clusvcmgrd]
logLevel = 4
[database]
version = 2.0
[members]
start member0
start chan0
name = rac1
type = net
end chan0
id = 0
name = rac1
powerSwitchIPaddr = rac1
powerSwitchPortName = unused
quorumPartitionPrimary = /dev/raw/raw1
quorumPartitionShadow = /dev/raw/raw2
end member0
start member1
start chan0
name = rac2
type = net
end chan0
id = 1
name = rac2
powerSwitchIPaddr = rac2
powerSwitchPortName = unused
quorumPartitionPrimary = /dev/raw/raw1
quorumPartitionShadow = /dev/raw/raw2
end member1
[powercontrollers]
start powercontroller0
IPaddr = rac1
login = unused
passwd = unused
type = null
end powercontroller0
start powercontroller1
IPaddr = rac2
login = unused
passwd = unused
type = null
end powercontroller1
[services]
start service0
checkInterval = 0
start device0
start mount
start NFSexports
start directory0
start client0
name = *
options = rw
end client0
name = /u04
end directory0
end NFSexports
forceUnmount = yes
fstype = ext3
name = /u04
options = rw,nosuid,sync
end mount
name = /dev/sdd4
sharename = None
end device0
name = nfs_project
start network0
ipAddress = 192.168.253.20
end network0
preferredNode = rac2
relocateOnPreferredNodeBoot = yes
end service0
[session]
lock = rac1-cluadmin-16970-root 1121957668
I created a NFS share on /u04 (mount on /dev/sdd4) using the following
command cluadmin on RAC1
I launched on 2 nodes Rac1 and RAC2 the following command:
Service cluster start
I checked the result on the 2 nodes:
clustat
Cluster Status Monitor (project) 14:21:38
Cluster alias: raclu
========== M e m b e r S t a t u s =============
Member Status Node Id Power Switch
-------------- ---------- ---------- ------------
rac1 Up 0 Good
rac2 Up 1 Good
=========== H e a r t b e a t S t a t u s ======
Name Type Status
------------------------------ ---------- ------------
rac1 <--> rac2 network ONLINE
========== S e r v i c e S t a t u s =======
Last Monitor Restart
Service Status Owner Transition Interval Count
-------------- -------- -------------- ---------------- --------
nfs_project started rac2 13:01:36 Jul 21 0 0
And I launched on RAC1 and other servers the following command:
mount –t nfs 192.168.253.20:/u04 /u04
And all are OK, I can list the /u04 content from any server (if I mount it).
But my only problem is:
When I want to try a test, I stop the network service on RAC2:
ifconfig eth0 down
Then when I try from another server as RAC1 to list the /u04 content, it
doesn’t work and doesn’t respond, and when I ping the IP alias
192.168.253.20 it doesn’t respond also.
Have you any idea to fix this problem?
Thanks for your replies and help
Haydar
>From: "haydar Ali" <haydar2906 at hotmail.com>
>Reply-To: linux clustering <linux-cluster at redhat.com>
>To: linux-cluster at redhat.com
>Subject: [Linux-cluster] Need help for Clustered NFS
>Date: Wed, 20 Jul 2005 10:10:35 -0400
>
>Hi,
>
>I want to setup and configure clustered NFS.
>I have created 2 quorum partitions /dev/sdd2 and /dev/sdd3 (100MB each)
>and formatted them
>
>mkfs -t ext2 -b 4096 /dev/sdd2
>mkfs -t ext2 -b 4096 /dev/sdd3
>
>I created another huge partition /dev/sdd4 (over 600GB) and formatted it in
>ext3 filesystem.
>
>I installed the cluster suite on the 1st node (RAC1) and I started the
>rawdevices on the two nodes RAC1 and RAC2 (it's OK).
>
>This the hosts file /etc/host on the node1 (RAC1)
>
># Do not remove the following line, or various programs
># that require network functionality will fail.
>127.0.0.1 localhost.localdomain localhost
>#
># Private hostnames
>#
>192.168.253.3 rac1.domain.net rac1
>192.168.253.4 rac2.domain.net rac2
>192.168.253.10 rac1
>#
># Hostnames used for Interconnect
>#
>1.1.1.1 rac1i.domain.net rac1i
>1.1.1.2 rac2i.domain.net rac2i
>#
>-----------------------
>
>
>I launched the command cluconfig and it generated /etc/cluster.conf, you
>can list its content:
>
>-------------------------------
>This file is automatically generated. Do not manually edit!
>
>[cluhbd]
> logLevel = 4
>
>[clupowerd]
> logLevel = 4
>
>[cluquorumd]
> logLevel = 4
>
>[cluster]
> alias_ip = 192.168.253.10
> name = project
> timestamp = 1121804245
>
>[clusvcmgrd]
> logLevel = 4
>
>[database]
> version = 2.0
>
>[members]
>start member0
>start chan0
> name = rac1
> type = net
>end chan0
> id = 0
> name = rac1
> powerSwitchIPaddr = rac1
> powerSwitchPortName = unused
> quorumPartitionPrimary = /dev/raw/raw1
> quorumPartitionShadow = /dev/raw/raw2
>end member0
>start member1
>start chan0
> name = rac2
> type = net
>end chan0
> id = 1
> name = rac2
> powerSwitchIPaddr = rac2
> powerSwitchPortName = unused
> quorumPartitionPrimary = /dev/raw/raw1
> quorumPartitionShadow = /dev/raw/raw2
>end member1
>
>[powercontrollers]
>start powercontroller0
> IPaddr = rac1
> login = unused
> passwd = unused
> type = null
>end powercontroller0
>start powercontroller1
> IPaddr = rac2
> login = unused
> passwd = unused
> type = null
>end powercontroller1
>
>[services]
>start service0
> checkInterval = 30
>start device0
>start mount
>start NFSexports
>start directory0
>start client0
> name = rac1
> options = rw
>end client0
> name = /u04
>end directory0
>end NFSexports
> forceUnmount = yes
> fstype = ext3
> name = /u04
> options = rw,nosuid,sync
>end mount
> name = /dev/sdd4
> sharename = None
>end device0
> name = nfs_project
> preferredNode = rac2
> relocateOnPreferredNodeBoot = yes
>end service0
>------------------------------------
>
>I created a NFS share on /u04 using the following command cluadmin
>
>[root at rac1 root]# cluadmin
>Wed Jul 20 10:02:20 EDT 2005
>
>You can obtain help by entering help and one of the following commands:
>
>cluster service clear
>help apropos exit
>version quit
>cluadmin> service show
> 1) state
> 2) config
> 3) services
>service show what? 2
> 0) nfs_project
> c) cancel
>
>Choose service: 0
>name: nfs_project
>preferred node: rac2
>relocate: yes
>monitor interval: 30
>device 0: /dev/sdd4
> mount point, device 0: /u04
> mount fstype, device 0: ext3
> mount options, device 0: rw,nosuid,sync
> force unmount, device 0: yes
> samba share, device 0: None
>NFS export 0: /u04
> Client 0: rac1, rw
>cluadmin> service show state
>========================= S e r v i c e S t a t u s
>========================
>
> Last Monitor Restart
> Service Status Owner Transition Interval Count
> -------------- -------- -------------- ---------------- -------- -------
> nfs_project started rac1 16:21:23 Jul 19 30 1
>cluadmin>
>
>
>And when I launched clustat, I expected this error message:
>
>clustat
>Cluster Status Monitor (Fileserver Test Cluster)
>07:46:05
>Cluster alias: rac1
>
>===================== M e m b e r S t a t u s ================
> Member Status Node Id Power Switch
> -------------- ---------- ---------- ------------
> rac1 Up 0 Good
> rac2 Down 1 Unknown
>
>=================== H e a r t b e a t S t a t u s ===============
> Name Type Status
> ------------------------------ ---------- ------------
> rac1 <--> rac2 network OFFLINE
>
>=================== S e r v i c e S t a t u s ==================
> Last Monitor
>Restart
>Service Status Owner Transition Interval Count
>
> ------------- -------- ------------- ---------------- ------------
> nfs_project started rac1 16:07:42 Jul 19 30
> 0
>
>
>
>And when I launched this command on RAC2:
>mount –t nfs rac1:/u04 /u04
>It list the following error message :
>Mount: rac1:/u04 failed, reason given by server: Permission denied
>
>Can someone help me to fix this problem in this configuration?
>
>Thanks
>
>Cheers!
>
>Haydar
>
>
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