match_addr: getaddrinfo failed: host nor service provided, or not known

[joseph51]

Hi,

Please some one help me to identify the following error message

automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known

automountd is running . Alos this is a cluster machine and the hanfs is also running
ps -ef | grep -i auto
root 78 0 0 Jan 9 ? 0:03 autofskd
root 3877 1 0 Jan 9 ? 28:51 /usr/sbin/automountd -L
root 20965 20915 0 15:48:20 pts/0 0:00 grep -i auto

cat /etc/auto_master
/net -hosts -nosuid,soft,nobrowse
/- /etc/auto.direct

also under /net directory nothing is there
Under /etc/auto.direct filesystems are mentioned which need to share with hsnfs

But I could not identify the error message , Its repeating daily

[Dennis Handly]

Since you have /net in auto_master, that means that anyone can do:
ll /net/IP-address or /net/machine-name

So does "ll /net/foobar2" cause one of these errors?

So do you have an automated process that is referring to an unknown machine?
I've had symlinks to /net/machine which had been long since decommissioned and would temporarily hang on them when doing "ls -F".

[joseph51]

Hi Dennis,

There is no machine name or IP defined under /net . Also the ls -F is not hung
root@:/net>
ls -F
root@:/net> ll /net
total 0
root@:/net>

[Dennis Handly]

>There is no machine name or IP defined under /net. Also the ls -F is not hung

There won't be because that machine doesn't exist to mount and still be there to see.
That "ls -F" hang could be hidden anywhere in any filesystem.

So you may need to find a connection between when the error occurs and some automatic (cron) or manual process.

[joseph51]

But , Could you please tell me how to find this
Becasue the errro is repeating every second

Feb 5 20:00:40 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:01:11 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:01:11 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:02:20 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:02:20 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:16:11 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 20:16:11 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 23:07:53 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 23:07:53 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known
Feb 5 23:14:22 automountd[3877]: match_addr: getaddrinfo failed: host nor service provided, or not known

[Dennis Handly]

>Because the error is repeating every second

Hmm. You may have to restart the automounter.
Do you have your networking set up correctly? Any recent changes there?

[joseph51]

No change happened recently

[rick jones]

Might be a good idea to fire-up the support contract and file a defect against the automounter - at the least it should be including *which* name it is unable to lookup.

In the meantime, you might be able to gather a clue as to the name involved with either a rather verbose tusc trace, or perhaps a tcpdump trace of port 53 traffic from the machine, correlated back with the timestamps of the error messages.