'Oracle 12c: TNS-12535: TNS:operation timed out

We have a new database server on RHEL 7 and Oracle 12c. The old database server is RHEL 4 and Oracle 10g. I need to dump the data using the 12c client from the new server to the old server.

I configured the tnsnames - however, while testing tnsping, I'm getting TNS-12535: TNS:operation timed out. I double-checked everything and all of the parameters look ok. I tried checking the old server firewall and it was disabled and no restrictions were in place. I tried to tnsping database instances to our old staging and development servers, and I get the the response in less than 10ms.

Below is the tnsnames entry for our old server:

RPROD_1 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.102.139)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = RPROD.GET2HAWAII.COM)
    )
  )

Here are the trace files from `tnsping:

[09-JAN-2018 20:26:50:179] nlstdipi: entry
[09-JAN-2018 20:26:50:179] nlstdipi: exit
[09-JAN-2018 20:26:50:179] nnfun2awanm: entry
[09-JAN-2018 20:26:50:179] nnfgiinit: entry
[09-JAN-2018 20:26:50:179] nncpcin_maybe_init: default name server domain is [root]
[09-JAN-2018 20:26:50:179] nnfgiinit: Installing read path
[09-JAN-2018 20:26:50:179] nnfgsrsp: entry
[09-JAN-2018 20:26:50:179] nnfgsrsp: Obtaining path parameter from names.directory_path or native_names.directory_path
[09-JAN-2018 20:26:50:179] nnfgsrdp: entry
[09-JAN-2018 20:26:50:179] nnfgsrdp: Setting path:
[09-JAN-2018 20:26:50:179] nnfgsrdp: checking element TNSNAMES
[09-JAN-2018 20:26:50:179] nnfgsrdp: checking element EZCONNECT
[09-JAN-2018 20:26:50:179] nnfgsrdp: Path set
[09-JAN-2018 20:26:50:179] nnfun2a: entry
[09-JAN-2018 20:26:50:179] nlolgobj: entry
[09-JAN-2018 20:26:50:179] nnfgrne: entry
[09-JAN-2018 20:26:50:179] nnfgrne: Going though read path adapters
[09-JAN-2018 20:26:50:179] nnfgrne: Switching to TNSNAMES adapter
[09-JAN-2018 20:26:50:179] nnftboot: entry
[09-JAN-2018 20:26:50:179] nlpaxini: entry
[09-JAN-2018 20:26:50:179] nlpaxini: exit
[09-JAN-2018 20:26:50:179] nnftmlf_make_local_addrfile: entry
[09-JAN-2018 20:26:50:179] nnftmlf_make_local_addrfile: construction of local names file failed
[09-JAN-2018 20:26:50:179] nnftmlf_make_local_addrfile: exit
[09-JAN-2018 20:26:50:179] nlpaxini: entry
[09-JAN-2018 20:26:50:179] nlpaxini: exit
[09-JAN-2018 20:26:50:179] nnftmlf_make_system_addrfile: entry
[09-JAN-2018 20:26:50:179] nnftmlf_make_system_addrfile: system names file is /u01/app/oracle/product/12.2.0.1/db_1/network/admin/tnsnames.ora
[09-JAN-2018 20:26:50:179] nnftmlf_make_system_addrfile: exit
[09-JAN-2018 20:26:50:179] nnftboot: exit
[09-JAN-2018 20:26:50:179] nnftrne: entry
[09-JAN-2018 20:26:50:179] nnftrne: Original name: rprod_1
[09-JAN-2018 20:26:50:179] nnfttran: entry
[09-JAN-2018 20:26:50:179] nnfttran: exit
[09-JAN-2018 20:26:50:179] nnftrne: Using tnsnames.ora address (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.102.139)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = RPROD.GET2HAWAII.COM))) for name rprod_1
[09-JAN-2018 20:26:50:179] nnftrne: exit
[09-JAN-2018 20:26:50:179] nnfgrne: exit
[09-JAN-2018 20:26:50:179] nlolgserv: entry
[09-JAN-2018 20:26:50:179] nnfggav: entry
[09-JAN-2018 20:26:50:179] nnftgav: entry
[09-JAN-2018 20:26:50:179] nnftgav: exit
[09-JAN-2018 20:26:50:179] nnftfrm: exit
[09-JAN-2018 20:26:50:179] nnfgfrm: exit
[09-JAN-2018 20:26:50:179] nlolgserv: exit
[09-JAN-2018 20:26:50:179] nlolgobj: exit
[09-JAN-2018 20:26:50:179] nlolfmem: entry
[09-JAN-2018 20:26:50:179] nlolfmem: exit
[09-JAN-2018 20:26:50:179] nnfun2awanm: Getting the path of sqlnet.ora
[09-JAN-2018 20:26:50:179] nnfun2awanm: Getting the adapter name
[09-JAN-2018 20:26:50:179] nnfun2awanm: exit
[09-JAN-2018 20:26:50:179] snsgblini: exit
[09-JAN-2018 20:26:50:180] nsmal: 288 bytes at 0x1afe400
[09-JAN-2018 20:26:50:180] nscall: connecting...
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: exit
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: exit
[09-JAN-2018 20:26:50:180] nlad_pr: entry
[09-JAN-2018 20:26:50:180] nlad_pr: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: exit
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: exit
[09-JAN-2018 20:26:50:180] nlad_pr: entry
[09-JAN-2018 20:26:50:180] nlad_aand: entry
[09-JAN-2018 20:26:50:180] nlad_ind: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: exit
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: exit
[09-JAN-2018 20:26:50:180] nlad_ind: exit
[09-JAN-2018 20:26:50:180] nlad_aand: entry
[09-JAN-2018 20:26:50:180] nladini: entry
[09-JAN-2018 20:26:50:180] nladini: exit
[09-JAN-2018 20:26:50:180] nladget: entry
[09-JAN-2018 20:26:50:180] nladget: exit
[09-JAN-2018 20:26:50:180] nsmal: 122 bytes at 0x1b00090
[09-JAN-2018 20:26:50:180] nsc2addr: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.102.139)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=RPROD.GET2HAWAII.COM)))
[09-JAN-2018 20:26:50:180] nttbnd2addr: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinGetAddrInfo: exit
[09-JAN-2018 20:26:50:180] nttbnd2addr: using host IP address: 192.168.102.139
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: entry
[09-JAN-2018 20:26:50:180] snlinFreeAddrInfo: exit
[09-JAN-2018 20:26:50:180] nttbnd2addr: exit
[09-JAN-2018 20:26:50:180] nsmal: 1912 bytes at 0x1b00120
[09-JAN-2018 20:26:50:180] nsmal: 3352 bytes at 0x1b008a0
[09-JAN-2018 20:26:50:180] nsmal: 168 bytes at 0x1b017d0
[09-JAN-2018 20:26:50:180] nsopen: opening transport...
[09-JAN-2018 20:26:50:180] nttcon: entry
[09-JAN-2018 20:26:50:180] nttcon: toc = 1
[09-JAN-2018 20:26:50:180] nttcnp: entry
[09-JAN-2018 20:26:50:180] nttcnp: exit
[09-JAN-2018 20:26:50:180] nttcni: entry
[09-JAN-2018 20:26:50:180] nttcni: Tcp conn timeout = 60000 (ms)
[09-JAN-2018 20:26:50:180] nttctl: entry
[09-JAN-2018 20:26:50:180] nttctl: Setting connection into non-blocking mode
[09-JAN-2018 20:26:50:180] nttcni: trying to connect to socket 5.
[09-JAN-2018 20:26:50:180] ntt2err: entry
[09-JAN-2018 20:26:50:180] ntt2err: exit
[09-JAN-2018 20:26:50:180] ntctst: size of NTTEST list is 1 - not calling poll
[09-JAN-2018 20:27:50:240] sntpoltst: exit
[09-JAN-2018 20:27:50:240] nttcni: TImeout or Error on this socket
[09-JAN-2018 20:27:50:241] nttcni: exit
[09-JAN-2018 20:27:50:241] nttcon: exit
[09-JAN-2018 20:27:50:241] nserror: nsres: id=0, op=65, ns=12535, ns2=12560; nt[0]=505, nt[1]=0, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
[09-JAN-2018 20:27:50:241] nsopen: unable to open transport
[09-JAN-2018 20:27:50:241] nsvntx_dei: entry
[09-JAN-2018 20:27:50:241] nsvntx_dei: exit
[09-JAN-2018 20:27:50:241] nsmfr: 3352 bytes at 0x1b008a0
[09-JAN-2018 20:27:50:241] nsmfr: 1912 bytes at 0x1b00120
[09-JAN-2018 20:27:50:241] nldntUpdateNodeTable: entry
[09-JAN-2018 20:27:50:241] snlinGetAddrInfo: entry
[09-JAN-2018 20:27:50:241] snlinGetAddrInfo: exit
[09-JAN-2018 20:27:50:241] snlinFreeAddrInfo: entry
[09-JAN-2018 20:27:50:241] snlinFreeAddrInfo: exit
[09-JAN-2018 20:27:50:241] nsmfr: 122 bytes at 0x1b00090
[09-JAN-2018 20:27:50:241] nscall: connecting...
[09-JAN-2018 20:27:50:241] nladget: entry
[09-JAN-2018 20:27:50:241] nladget: exit
[09-JAN-2018 20:27:50:241] nsmfr: 288 bytes at 0x1afe400
[09-JAN-2018 20:27:50:241] nladtrm: entry
[09-JAN-2018 20:27:50:241] nladtrm: exit
[09-JAN-2018 20:27:50:241] nlse_term_audit: entry
[09-JAN-2018 20:27:50:241] nlse_term_audit: exit
oracleoracle12crhel7


Solution 1:[1]

This was indeed a network issue, involving the net mask of both servers where the other server has incorrect net mask.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Drew

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