NVE: Deployment Fails When Installing NetWorker Language Packs (11 of 29)

The NetWorker Installation Manager shows failure "Installing NetWorker Language Packs (11 of 29)."  If the retry is attempted in the NetWorker Installation Manager, it fails during the same step. The /space/avamar/var/avi/server_log/avinstaller.log.0 shows:

INFO: PollMessageSender sent: <UpdateMessage><TaskName>Installing NetWorker Language Packs (11 of 29)</TaskName><ProcessKey>nve-config20210209Feb021612938761</ProcessKey><ProcessInstanceId>nve-config20210209Feb021612938761.10007</ProcessInstanceId><TaskId>10109</TaskId><Timestamp>YYYYY/MM/DD-HH:MM:SS.00648</Timestamp><Content>Installing NetWorker Language Packs (11 of 29) Failed</Content><Transition behavior="Retry Installing NetWorker Language Packs (11 of 29)">Call EMC Support</Transition></UpdateMessage>
Month DD, YYYY HH:MM:SS PM com.avamar.avinstaller.process.TaskTimeManager stopTimer
INFO: startTime: 0

The /data01/avamar/repo/temp/*/tmp/workflow.log shows:

YYYY-MM-DD HH:MM:SS (+0000) 69935412443820 INFO: - - - - - - - BEGIN(stderr output) - - - - - - -
YYYY-MM-DD HH:MM:SS (+0000) 69935412443820 INFO: hostname: Host name lookup failure
YYYY-MM-DD HH:MM:SS (+0000) 69935412443820 INFO: - - - - - - - END
YYYY-MM-DD HH:MM:SS (+0000) 69935412443820 INFO: "hostname -f", exit status=1
YYYY-MM-DD HH:MM:SS (+0000) 69935412443820 INFO: Tools.get_system_hostname: cmd="hostname -f" status=1 stdout=[] stderr=["hostname: Host name lookup failure\n"]

The /data01/avamar/repo/temp/*/tmp/err.log shows:

YYYY-MM-DD HH:MM:SS (-0400) 70219139119780 ERROR: ERROR: getaddrinfo: Name or service not known

The NVE Domain Name System (DNS) is not properly configured to provide name resolution in the environment. As per the "Verify the DNS configuration" section in the Dell EMC NetWorker Virtual Edition Deployment Guide:

Before you deploy the NVE, ensure that the DNS server is configured correctly for the hostname and IP address of the vCenter server and the NVE appliance. Incorrect name resolution results in runtime errors and configuration issues.

1. Connect to the NVE over SSH as admin.

2. Switch to the root account: sudo su -
3. Confirm which DNS servers (if any) are defined in the NVE's resolv.conf file: cat /etc/resolv.conf
4. Modify the /etc/sysconfig/network/config file to contain the correct DNS servers and search suffix,

NETCONFIG_DNS_STATIC_SERVERS="192.168.9.100 10.10.10.2"

b. Look for the line containing NETCONFIG_DNS_STATIC_SEARCHLIST and add any search domains. This typically includes the NVE's domain name and any additional DNS server domains.

NETCONFIG_DNS_STATIC_SEARCHLIST="amer.lan"

5. Save the file and confirm that the changes were applied to the /etc/resolv.conf file: cat /etc/resolv.conf

6. Confirm that you can ping and resolve the DNS server:

ping DNS_SERVER_IPADDRESS
nslookup DNS_SERVER_IPADDRESS

7. Once DNS is properly responding, return to the NVE installation user interface and retry the task. 

NetWorker: Name Resolution Troubleshooting Best Practices
NVE: Installation Failing With "Generating Probe.xml from system settings (3 of 28) Failed"
NVE: Upgrade / Install Failure Triage Guide