backups from a specific media server failing with error code 48

[anishC5]

Hi All,

i am having an unusual problem from a specific media server which hosts disks.

1. the server I am trying to backup, the host name is not pinging, but IP is

2. while doing nslookup, both forward and reverse lookups are successful

3. while running bptestbpcd with the client host name, it is successful.

4. When adding the client to the "HOSTS" entry all is well. EVEN backups are successful. If i hash that entry we are back to square one.

5. We have a DNS in our backup environment which we use for name resolution, not HOSTS.

Is it a ghost in the machine.

background:

master: LINUX

Media server: NBU appliance 5220 2.5.2

Client: win SVR 2008

Please can you help?

Thanks, Anish
 

[Omar_Villa]

If you cannot ping the host by name is something going on at DNS or Hosts file level, have you try to add an entry in to the hosts file with the IP you can ping? this will confirm this, also something you can see typos or duplicated IP's in the hosts file I will recommend you to review it.

Hope this helps.

Regards.

[Marianne]

Media server: NBU appliance 5220 2.5.2

Curious to know how hostname lookup is configured. (I don't have access to an appliance right now to check/compare.)

Check all of these files:

/etc/host.conf

/etc/nsswitch.conf

 /etc/resolv.conf

[anishC5]

Thanks Omar,

i have added the host file entry and backups are fine then. ping etc are good.

When i hash it again, we are back to square 1.

We have DNS server for hostname-IP resolution. our master and DNS server are the same.

pasting the output of the bptestbpcd command. Please can you advise from there please?

med-svr-65a:/usr/openv/netbackup/bin/admincmd # ./bptestbpcd -client clnt-svr-fs09.backup.local -debug -verbose
14:45:15.520 [16695] <2> bptestbpcd: VERBOSE = 1
14:45:15.520 [16695] <2> ConnectionCache::connectAndCache: Acquiring new connection for host mast-svr.backup.local, query type 223
14:45:25.523 [16695] <8> async_connect: [vnet_connect.c:1449] connect failed 22 0x16
14:45:25.524 [16695] <8> async_connect: [vnet_connect.c:1449] connect failed 22 0x16
14:45:25.525 [16695] <2> vnet_pbxConnect: pbxConnectEx Succeeded
14:45:25.525 [16695] <2> logconnections: BPDBM CONNECT FROM 172.30.240.20.41318 TO 172.30.240.1.1556 fd = 4
14:45:25.526 [16695] <8> vnet_check_vxss_client_magic_with_info: [vnet_vxss_helper.c:871] Ignoring VxSS authentication 2 0x2
14:45:25.529 [16695] <2> db_CLIENTsend: reset client protocol version from 0 to 8
14:45:25.575 [16695] <2> db_end: Need to collect reply
14:45:25.575 [16695] <2> db_freeEXDB_INFO: ?
14:45:25.576 [16695] <8> vnet_cached_getaddrinfo_and_update: [vnet_addrinfo.c:1585] in failed file cache ERR=-2 NAME=clnt-svr-fs09.backup.local SVC=veritas_pbx
14:45:25.576 [16695] <8> vnet_cached_getaddrinfo: [vnet_addrinfo.c:1275] vnet_cached_getaddrinfo_and_update() failed 6 0x6
14:45:25.576 [16695] <8> init_remote_connect_recs: [vnet_connect.c:931] vnet_cached_getaddrinfo() failed 6 0x6
14:45:25.576 [16695] <8> init_remote_connect_recs: [vnet_connect.c:932] vnet_cached_getaddrinfo() OS returned -2 0xfffffffffffffffe
14:45:25.576 [16695] <8> init_remote_connect_recs: [vnet_connect.c:933] vnet_cached_getaddrinfo() host clnt-svr-fs09.backup.local
14:45:25.576 [16695] <8> init_remote_connect_recs: [vnet_connect.c:934] vnet_cached_getaddrinfo() service bpcd
14:45:25.576 [16695] <8> init_connect_recs: [vnet_connect.c:805] init_remote_connect_recs() failed 6 0x6
14:45:25.576 [16695] <8> connect_to_service: [vnet_connect.c:545] init_connect_recs() failed 6 0x6
14:45:25.576 [16695] <8> vnet_connect_to_bpcd: [vnet_connect.c:279] connect_to_service() failed 6 0x6
14:45:25.576 [16695] <2> local_bpcr_connect: Can't connect to client clnt-svr-fs09.backup.local
14:45:25.576 [16695] <2> ConnectToBPCD: bpcd_connect_and_verify(clnt-svr-fs09.backup.local, clnt-svr-fs09.backup.local) failed: 48
<16>bptestbpcd main: Function ConnectToBPCD(clnt-svr-fs09.backup.local) failed: 48
14:45:25.577 [16695] <16> bptestbpcd main: Function ConnectToBPCD(clnt-svr-fs09.backup.local) failed: 48
<2>bptestbpcd: client hostname could not be found
14:45:25.577 [16695] <2> bptestbpcd: client hostname could not be found
<2>bptestbpcd: EXIT status = 48
14:45:25.577 [16695] <2> bptestbpcd: EXIT status = 48
client hostname could not be found

[Marianne]

We have DNS server for hostname-IP resolution....

Please have a look at my post above.

Confirm name lookup config on the appliance.