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Problem with ".in-addr.arpa domain name pointer"
Hi, I am having difficulty in setup a Hadoop networks (with http://cloudera.com) on some of my VPSs.
The log shows:
Detecting Cloudera Manager Server...
BEGIN host -t PTR 172.245.215.28
28.215.245.172.in-addr.arpa domain name pointer .
END (0)
using as scm server hostname
BEGIN which python
END (0)
/usr/bin/python
BEGIN python -c 'import socket; import sys; s = socket.socket(socket.AF_INET); s.settimeout(5.0); s.connect((sys.argv[1], int(sys.argv[2]))); s.close();' 7182
Traceback (most recent ca
ll last):
File "", line 1, in
IndexError: list index out of range
END (1)
could not contact scm server at :7182, giving up
waiting for rollback request
You can see the cause of failure
28.215.245.172.in-addr.arpa domain name pointer .
In other VPS, the problem is
"198.49.72.173.in-addr.arpa domain name pointer 198-49-72-173.static.dimenoc.com".
But cloudera said "198-49-72-173.static.dimenoc.com" is not accessible.
Could you please give some hints regarding network resolving?
Thanks
Comments
Have your host set your rDNS to match a working forward DNS entry. It appears to me that this is simply attempting to perform a forward confirmed reverse DNS check. You can read more about how these work at the link below.
http://en.wikipedia.org/wiki/Forward-confirmed_reverse_DNS
Thanks for quick answer @jarland
I am working on rDNS now and come back with the result.
Make sure the name you are trying to point to ends in a .
If the . is missing then it will fail also.
So it needs to be 198-49-72-173.static.dimenoc.com.