Cisco Headend System Release 2.7 Guida All'Installazione
Chapter 2 SR 2.8.2/3.8.2/4.3.2 Upgrade Procedures
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4038415 Rev A
Remove Scripts That Bounce the Pass-Through
Process
In order to correct some issues associated with the Pass-Through process on the
DNCS, some sites have been regularly bouncing this process through scripts that
reside in the crontab file. SR 2.8.2/3.8.2/4.3.2 contains software that corrects issues
associated with the Pass-Through process. Therefore, after the upgrade, you should
remove any entries in the crontab file that reference scripts that bounce the Pass-
Through process. The instructions in this section guide you through the process of
removing these references.
DNCS, some sites have been regularly bouncing this process through scripts that
reside in the crontab file. SR 2.8.2/3.8.2/4.3.2 contains software that corrects issues
associated with the Pass-Through process. Therefore, after the upgrade, you should
remove any entries in the crontab file that reference scripts that bounce the Pass-
Through process. The instructions in this section guide you through the process of
removing these references.
Notes:
Bouncing a process refers to stopping and then restarting that process.
The scripts that Cisco wrote to bounce the Pass-Through process are called
elop.sh and bouncePassThru.
elop.sh and bouncePassThru.
Removing Scripts That Bounce the Pass-Through Process
1 If necessary, open an xterm window on the DNCS.
2 Follow these instructions to check on the presence of scripts in the crontab file
2 Follow these instructions to check on the presence of scripts in the crontab file
that bounce the Pass-Through process.
a Type the following command and press Enter. The system lists the line(s)
a Type the following command and press Enter. The system lists the line(s)
within the crontab file that contain elop.ksh.
crontab -l | grep -i elop.sh
b Type the following command and press Enter. The system lists the line(s)
within the crontab file that contain bouncePassThru.
crontab -l | grep -i bouncePassThru
3 Did the output of step 2 contain any references to the elop.sh or the
bouncePassThru scripts?
If yes, go to step 4 to remove those references.
If no, go to the next procedure in this chapter.
Note: You do not have to remove any references to the scripts from the
crontab file.
Note: You do not have to remove any references to the scripts from the
crontab file.
4 Type the following command and press Enter. The system redirects the contents
of the crontab into dncs.crontab.
crontab -l > /tmp/dncs.crontab
Note: While you can edit the crontab directly, we recommend that you first
redirect the contents of the crontab to dncs.crontab so you can recover the
original crontab if necessary.
redirect the contents of the crontab to dncs.crontab so you can recover the
original crontab if necessary.