Showing posts with label check_nfs. Show all posts
Showing posts with label check_nfs. Show all posts

Sunday, April 1, 2012

NFSv3/v4 monitoring

I introduced how to setup NFSv3/v4 Server in the last session, NFSv3/v4 setup & monitoring. Then, I'd like to show you how to monitor NFSv3/v4 servers with nagios plugins.

NFSv3 NFS Server

  • verify the status with nagios plugins, check_rpc while nfs and portmap are running
# /etc/init.d/nfs status
rpc.mountd (pid 21781) を実行中...
nfsd (pid 21778 21777 21776 21775 21774 21773 21772 21771) を実行中...

# /etc/init.d/portmap status
portmap (pid 10609) を実行中...

# ps awuxc | egrep '(nfs|portmap|idmapd)'
rpc      29800  0.0  0.0   8072   676 ?        Ss   20:42   0:00 portmap
root     29915  0.0  0.0      0     0 ?        S<   20:42   0:00 nfsd4
root     29917  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29918  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29919  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29920  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29921  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29922  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29923  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd
root     29924  0.0  0.0      0     0 ?        S    20:42   0:00 nfsd

# rpcinfo -p
  program vers proto   port
   100000    2   tcp    111  portmapper
   100000    2   udp    111  portmapper
   100024    1   udp    773  status
   100024    1   tcp    776  status
   100003    2   udp   2049  nfs
   100003    3   udp   2049  nfs
   100003    4   udp   2049  nfs
   100021    1   udp  53048  nlockmgr
   100021    3   udp  53048  nlockmgr
   100021    4   udp  53048  nlockmgr
   100003    2   tcp   2049  nfs
   100003    3   tcp   2049  nfs
   100003    4   tcp   2049  nfs
   100021    1   tcp  37837  nlockmgr
   100021    3   tcp  37837  nlockmgr
   100021    4   tcp  37837  nlockmgr
   100005    3   udp    892  mountd
   100005    3   tcp    892  mountd
# check_rpc -H localhost -t -C nfs
OK: RPC program nfs version 2 version 3 version 4 tcp running
  • verify the status while nfs is stopping
# /etc/init.d/nfs stop
NFS mountd を終了中:                                       [  OK  ]
NFS デーモンを終了中:                                      [  OK  ]
NFS サービスを終了中:                                      [  OK  ]
# check_rpc -H localhost -t -C nfs
CRIICAL: RPC program nfs  tcp is not running
  • verify the status while nfs and portmap are stopping
# /etc/init.d/portmap stop
portmap を停止中:                                          [  OK  ]
# check_rpc -H localhost -t -C nfs
CRITICAL: RPC program nfs  tcp is not running

NFSv4 NFS Server

We are going to use the nagios plugins, check_nfs4.0.2.pl to verify the status of nfs v4 server.

  • verify the status with nagios plugins, check_nfsv4.0.2.pl while nfs, portmap, and rpcidmapd are running 
# /etc/init.d/nfs status
rpc.mountd (pid 21781) を実行中...
nfsd (pid 21778 21777 21776 21775 21774 21773 21772 21771) を実行中...

# /etc/init.d/portmap status
portmap (pid 10609) を実行中...

# /etc/init.d/rpcidmapd status
rpc.idmapd (pid 18346) を実行中...

# ps awuxc | egrep '(nfs|portmap|idmapd)'
root      8102  0.0  0.0      0     0 ?        S<   Jan02   0:00 nfsiod
rpc      10609  0.0  0.0   8052   580 ?        Ss   11:44   0:00 portmap
root     18346  0.0  0.0  55180  1008 ?        Ss   12:20   0:00 rpc.idmapd
root     21770  0.0  0.0      0     0 ?        S<   12:35   0:00 nfsd4
root     21771  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21772  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21773  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21774  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21775  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21776  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21777  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd
root     21778  0.0  0.0      0     0 ?        S    12:35   0:00 nfsd

# rpcinfo -p
   program vers proto   port
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100011    1   udp    870  rquotad
    100011    2   udp    870  rquotad
    100011    1   tcp    873  rquotad
    100011    2   tcp    873  rquotad
    100003    4   tcp   2049  nfs
    100021    1   udp  32769  nlockmgr
    100021    3   udp  32769  nlockmgr
    100021    4   udp  32769  nlockmgr
    100021    1   tcp  32803  nlockmgr
    100021    3   tcp  32803  nlockmgr
    100021    4   tcp  32803  nlockmgr
    100005    3   udp    757  mountd
    100005    3   tcp    760  mountd
# ./check_nfs4.0.2.pl -v
OK: nfsd cpu = 0% ; nfsd threads = 8 ; nfsd used threads <= 10% ; Server badcalls = 19 ; Server badauth = 19 |nfsd_cpu=0% nfsd_used_threads=10% io_read=0% io_write=0%
  • verify the status while rpcidmapd is stopping
# /etc/init.d/rpcidmapd stop
Stopping RPC idmapd:                                       [  OK  ]
# ./check_nfs4.0.2.pl -v
CRITICAL: nfsd cpu = 0% ; nfsd threads = 8 ; nfsd used threads <= 10% ; daemon idmapd is not running ; Server badcalls = 19 ; Server badauth = 19 |nfsd_cpu=0% nfsd_used_threads=10% io_read=0% io_write=0%
  • verify the status while rpcidmapd and nfs are stopping 
# /etc/init.d/nfs stop
NFS mountd を終了中:                                       [  OK  ]
NFS デーモンを終了中:                                      [  OK  ]
NFS サービスを終了中:                                      [  OK  ]
# ./check_nfs4.0.2.pl -v
CRITICAL: nfsd cpu = 0% ; nfsd threads = 0 ; nfsd used threads <= 10% ; daemons idmapd nfsd mountd are not running ; Server badcalls = 19 ; Server badauth = 19 |nfsd_cpu=0% nfsd_used_threads=10% io_read=0% io_write=0%
  • verify the status while rpcidmapd, nfs and portmap are stopping 
# /etc/init.d/portmap stop
portmap を停止中:                                          [  OK  ]
# ./check_nfs4.0.2.pl -v
OK: nfsd cpu = 0% ; nfsd threads = 8 ; nfsd used threads <= 10% ; Server badcalls = 19 ; Server badauth = 19 |nfsd_cpu=0% nfsd_used_threads=10% io_read=0% io_write=0%

NFSv4 NFS Server

check_nfsv4.0.2.pl is enable to verify the status of nfsv4 client, too.

  • verify the status while portmap and rpcidmapd are running 
# /etc/init.d/portmap status
portmap (pid 30107) を実行中...

# /etc/init.d/rpcidmapd status
rpc.idmapd (pid 30002) を実行中...
# ./check_nfs4.0.2.pl -i -v
OK: |
  • verify the status while rpcidmapd is stopping
# /etc/init.d/rpcidmapd stop
Stopping RPC idmapd:                                       [  OK  ]
# ./check_nfs4.0.2.pl -i -v
CRITICAL: daemon idmapd is not running |
  • verify the status while portmap is stopping
# /etc/init.d/portmap stop
portmap を停止中:                                          [  OK  ]
# ./check_nfs4.0.2.pl -i -v
OK: |
  • verify the status while portmap and rpcidmapd are stopping 
# /etc/init.d/rpcidmapd stop
Stopping RPC idmapd:                                       [  OK  ]

# /etc/init.d/portmap stop
portmap を停止中:                                          [  OK  ]
# ./check_nfs4.0.2.pl -i -v
CRITICAL: daemon idmapd is not running |


These are the examples of services.cfg in the nagios configuration file, below.
  • common setting with visudo for nagios user between nfs server and client.
nagios          ALL=(ALL)       NOPASSWD: ALL
  • commands.cfg for check_by_ssh
define command{
        command_name    check_by_ssh_pub
        command_line    $USER1$/check_by_ssh -H $HOSTADDRESS$ -i /usr/local/nagios/.ssh/id_rsa -l nagios -p $ARG1$ -t $ARG2$ -C $ARG3$
}

  • NFSv3 Server
define service{
        use                     generic-service
        host_name               nfsv3_server
        service_description     NFSv3:Server
        check_command           check_by_ssh_pub!22!60!"/usr/local/nagios/libexec/check_rpc -H localhost -t -C nfs"
}
  • NFSv4 Server
define service{
        use                     generic-service
        host_name               nfsv4_server
        service_description     NFSv4:Server
        check_command           check_by_ssh_pub!22!60!"/usr/bin/sudo /usr/local/nagios/libexec/check_nfs4.0.2.pl -v"
}
  • NFSv4 Client
define service{
        use                     generic-service
        host_name               nfsv4_client
        service_description     NFSv4:Client
        check_command           check_by_ssh_pub!22!60!"/usr/bin/sudo /usr/local/nagios/libexec/check_nfs4.0.2.pl -v"
}

Posted by at No comments:
Labels: , , , , , ,

Sunday, March 25, 2012

NFSv3/v4 setup & monitoring

NFS(Network File System) is quite common protocol and still in demand, though even if Cluster File System is in popular and becomes familiar with every engineer. For example, it is sometimes necessary to use NFS, when replacing an old and on-premise system composed with NFS server and clients. I've been using NFS v3, but I will try v4 as it use static tcp 2049 port by default, which enables iptables less directives than that of v3.

I'll list how to setup NFS both v3 and v4, and also how to monitor both of them with nagios.

Read more »
Posted by at No comments:
Labels: , , , , , ,
Subscribe to: Posts (Atom)

iJAWS@Doorkeeper

iJAWS #6 @GDI Communications