Server moved, new IP, broken CRON job Post: 302181823

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Top Forums UNIX for Dummies Questions & Answers Server moved, new IP, broken CRON job Post 302181823 by HikerLT on Friday 4th of April 2008 09:05:22 AM

04-04-2008

Registered User

Server moved, new IP, broken CRON job

Due to downsizing and attrition, I have inherited SysAdmin tasks, but unfortunately not all the required knowledge and skills came to me along with the assignment -> so I appreciate any advice and help ( be patient with my newbie terms and questions).

We moved a central server and changed it's IP address. Now a Cron job running on another server is broken.

here are the details:
*********************************

Need help with broken CRON task.

History:

We recently moved a server (name �ntpinet� )and had to change its IP address. A Cron job running on another server (name �mfg-02�) stopped working at that time.

Here is the Cron job that is attempting to run:

Code:

/usr/bin/rsync -e /usr/bin/ssh -I /root/.ssh/id_rsa -z -u -t --recursive root@ntpinet.inse.lucent.com: /usr/local/apache/htdocs/transfer/mfg02/home/samba/share/MAC.dat /home/sanmina/

This CRON should pull the updated MAC.dat file from the /usr/local/apache/htdocs/transfer/mfg02/home/samba/share/ directory on your machine ntpinet to the /home/sanmina/ directory on mfg02 .

I checked the file in that directory on ntpinet and it is up to date.

The id_rsa key file is from May 27, 2005 so maybe it is out of date and the rsync command is being rejected?

Steps tried:

1) had suggested that I remove the ntpinet entry on mfg02 from the known_hosts file and it would regenerate the key when it tried ssh to ntpinet the next time.
Removed the entry, but did not seem to regenerate the key

I looked at the known_hosts file on ntpinet under /root/.ssh and the mfg02 machine doesn't seem to be there.

So, I copied back the original known_hosts file on mfg02 and then edited the IP address in there to add the new ip address and name ntpinet server. So I made that one change on mfg02 , adding ntpinet to the known hosts file on mfg02.

2)
When I try to run the script manually, it hangs and finally gives the following timeout message.

Code:

[root@mfg02 ]# /usr/local/scripts/rsync.sh
ssh: connect to host ntpinet.inse.lucent.com port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes read so far)
rsync error: error in rsync protocol data stream (code 12) at io.c(165)

Maybe I need to gen a new rsa_id script on ntpinet or mfg02 marlboro. I noticed ntpinet had a dsa_id but no rsa_id.

*******************************

Help !

Last edited by Yogesh Sawant; 04-04-2008 at 10:12 AM.. Reason: added code tags

HikerLT

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LEARN ABOUT POSIX

queuedefs

queuedefs(4)                                                       File Formats                                                       queuedefs(4)

NAME

       queuedefs - queue description file for at, batch, and cron

SYNOPSIS

       /etc/cron.d/queuedefs

DESCRIPTION

       The queuedefs file describes the characteristics of the queues managed by cron(1M). Each non-comment line in this file describes one queue.
       The format of the lines are as follows:

              q.[njobj][nicen][nwaitw]

       The fields in this line are:

       q        The name of the queue. a is the default queue for jobs started by at(1); b is the default queue for jobs  started  by  batch  (see
                at(1)); c is the default queue for jobs run from a crontab(1) file.

       njob     The  maximum  number of jobs that can be run simultaneously in that queue; if more than njob jobs are ready to run, only the first
                njob jobs will be run, and the others will be run as jobs that are currently running terminate.  The default value is  100.

       nice     The nice(1) value to give to all jobs in that queue that are not run with a user ID of super-user.  The default value is 2.

       nwait    The number of seconds to wait before rescheduling a job that was deferred because more than njob jobs were running in  that  job's
                queue, or because the system-wide limit of jobs executing has been reached.  The default value is 60.

       Lines beginning with # are comments, and are ignored.

EXAMPLES

       Example 1: A sample file.

       #
       #
       a.4j1n
       b.2j2n90w

       This  file  specifies that the a queue, for at jobs, can have up to 4 jobs running simultaneously; those jobs will be run with a nice value
       of 1.  As no nwait value was given, if a job cannot be run because too many other jobs are running cron will wait 60 seconds before  trying
       again to run it.

       The  b  queue, for batch(1) jobs, can have up to 2 jobs running simultaneously; those jobs will be run with a nice(1) value of 2.  If a job
       cannot be run because too many other jobs are running, cron(1M) will wait 90 seconds before trying again to run it. All  other  queues  can
       have up to 100 jobs running simultaneously; they will be run with a nice value of 2, and if a job cannot be run because too many other jobs
       are running cron will wait 60 seconds before trying again to run it.

FILES

       /etc/cron.d/queuedefs           queue description file for  at, batch, and  cron.

SEE ALSO

       at(1), crontab(1), nice(1), cron(1M)

SunOS 5.10                                                          1 Mar 1994                                                        queuedefs(4)

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