Forum Discussion

Raek's avatar
Raek
Level 3
5 years ago

EMM - invalid host name (136)

Hello

Following a fresh NetBackup installation, I'm having the below error message:

[root@nbo ~]# /usr/openv/netbackup/bin/admincmd/nbemmcmd -getemmserver
NBEMMCMD, Version: 8.1.1
The function returned the following failure status:
invalid host name (136)
Command did not complete successfully.

Below some information and related logs:

NetBackup: 8.1.1
RHEL: 7.6
HW: VM with 4 vCPU ; 16GB RAM
uname -a: Linux nbo 3.10.0-957.el7.x86_64 GNU/Linux


NBEMM logs attached.

Any help would be appreciated.

 

8
Linux
  • Raek's avatar
    Raek
    5 years ago

    Shared memory configuration (kernel.shm***) inside sysctl.conf was not suitable for vmd process.

    Leaving the default values fixed the issue.

  • RamNagalla's avatar
    RamNagalla
    Moderator
    5 years ago

    Ensure EMMSERVER =  entry in bp.conf is properly updated with EMM server/Master server name & also ensure media server is registered in EMM database, if you are running the above command on Media server. you can validate it by running the same command 

    /usr/openv/netbackup/bin/admincmd/nbemmcmd -listhosts

    • Raek's avatar
      Raek
      Level 3
      5 years ago

      Hello

      In fact there only one master server in my configuration, no additional media server.

      Here is below the requested output.

      [root@nbo ~]# cat /usr/openv/netbackup/bp.conf
      SERVER = nbo
      CLIENT_NAME = nbo
      CONNECT_OPTIONS = localhost 1 0 2
      USE_VXSS = PROHIBITED
      EMMSERVER = nbo
      HOST_CACHE_TTL = 3600
      VXDBMS_NB_DATA = /usr/openv/db/data
      CLIENT_CONNECT_TIMEOUT = 20000000
      WEBSVC_GROUP = nbwebgrp
      WEBSVC_USER = nbwebsvc
      TELEMETRY_UPLOAD = YES


      [root@nbo ~]# /usr/openv/netbackup/bin/admincmd/nbemmcmd -listhosts
      NBEMMCMD, Version: 8.1.1
      The following hosts were found:
      server nbo
      Command completed successfully.

       

  • RamNagalla's avatar
    RamNagalla
    Moderator
    5 years ago

    i see you are trying install Netbackup 8.1.1 ( released in 2018 ) on RHEL 7.8 ( release on march 2020), 

    there may be a compatablity issue or may not as its not a major relese, however i would suggest you to try with 8.3 on 7.8 release. 

    • Raek's avatar
      Raek
      Level 3
      5 years ago

      Shared memory configuration (kernel.shm***) inside sysctl.conf was not suitable for vmd process.

      Leaving the default values fixed the issue.

      • Marianne's avatar
        Marianne
        Level 6
        5 years ago

        Raek 

        If the issue was with shared memory, then I find it strange that nothing was logged in server.log.... 

        I'm curious to know how you found the issue? 
        What was the incorrect entries and what is working fine now? 
        Care to share with this community? 

  • Marianne's avatar
    Marianne
    Level 6
    5 years ago

    Raek 

    Have you seen these lines in the Emm log?

    Machine name nbo not found,33:ResourceEventMgr_i::resolveServer,1
    Machine nbo could not be resolved;

    Can you confirm that server networking is installed/enabled on this server?
    What is in /etc/hosts on this server? 
    Output of 'ip link show' ? 

    • Raek's avatar
      Raek
      Level 3
      5 years ago

      Hello

      Yes, I've noticed this message.

      Here are the requested output.

      [root@nbo ~]# more /etc/hosts
      127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
      ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

      10.1.10.100    nbo nbo.int.com
      192.168.17.7   nbomgt


      [root@nbo ~]# ip link show
      1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
      link/ether 00:50:56:a9:fb:ae brd ff:ff:ff:ff:ff:ff
      3: ens224: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
      link/ether 00:50:56:a9:af:22 brd ff:ff:ff:ff:ff:ff

      However I noticed that the prerequisites for NetBackup installation on RHEL include "server networking", but couldn't understand what does it mean exactly (do they mean some special package? package group? or something else?)

       

  • RamNagalla's avatar
    RamNagalla
    Moderator
    5 years ago

    can you give the outputs of

    bpclntcmd -pn 

    bpclntcmd -self

    bpclntcmd -ip 10.1.10.100  

    bpclntcmd -hn nbo

    also what is the CA cetificate status, you can get that from below command

    Windows: <install_path>\netbackup\bin\nbcertcmd -displayCACertDetail -server mymaster
    UNIX: <install_path>/netbackup/bin/nbcertcmd -displayCACertDetail -server mymaster

    • Raek's avatar
      Raek
      Level 3
      5 years ago

      Please check below:

      [root@nbo bin]# ./bpclntcmd -pn
      expecting response from server nbo
      nbo *NULL* 10.1.10.100 54586


      [root@nbo bin]# ./bpclntcmd -self
      yp_get_default_domain failed: (12) Local domain name not set
      NIS does not seem to be running: (1) Request arguments bad
      gethostname() returned: nbo
      host nbo: nbo at 10.1.10.100
      aliases: nbo 10.1.10.100
      getfqdn(nbo) returned: nbo.int.com


      [root@nbo bin]# ./bpclntcmd -ip 10.1.10.100
      host 10.1.10.100: nbo at 10.1.10.100
      aliases: nbo 10.1.10.100


      [root@nbo bin]# ./bpclntcmd -hn nbo
      host nbo: nbo at 10.1.10.100
      aliases: nbo 10.1.10.100


      [root@nbo bin]# ./nbcertcmd -displayCACertDetail -server nbo

      CA Certificate received successfully from server nbo.

      Subject Name : /CN=nbatd/OU=root@nbo.int.com/O=vx
      Start Date : Aug 03 20:30:05 2020 GMT
      Expiry Date : Jul 29 21:45:05 2040 GMT
      SHA1 Fingerprint : 5F:1C:C6:EE:F6:54:F2:50:83:E5:0B:54:05:FC:E2:3C:C8:3F:DE:CD
      CA Certificate State : Trusted

       

      • Raek's avatar
        Raek
        Level 3
        5 years ago

        Hello

        I've made two new installation to test the behavior on RHEL 7.8 and RHEL 6.8, and found that it behaves just fine on 6.8.

        Please see below:

        --------------- RHEL 6.8

        [root@rhel68 ~]# /usr/openv/netbackup/bin/admincmd/nbemmcmd -getemmserver
        NBEMMCMD, Version: 8.1.1
        These hosts were found in this domain: rhel68.int.com

        Checking with the host "rhel68.int.com"...

        Server Type Host Version Host Name EMM Server
        MASTER 8.1 rhel68.int.com rhel68.int.com

        Command completed successfully.

        --------------- RHEL 7.8

        [root@rhel78 ~]# /usr/openv/netbackup/bin/admincmd/nbemmcmd -getemmserver
        NBEMMCMD, Version: 8.1.1
        The function returned the following failure status:
        invalid host name (136)
        Command did not complete successfully.

        Any adea?