Can it be that you are using application servers and that SAP sometimes runs the script on one server and sometimes on another?
Hello Scrutinizer, Thanks. We have 3 SAP Application servers. The script is on only 1 of them. In my environment, the script is kicked up every time. However, it errors out and terminates 50% of the time so this should rule out the possibility that SAP called the script on other App servers. I appreciate your help. J Phang
---------- Post updated at 03:10 AM ---------- Previous update was at 02:41 AM ----------
Quote:
Originally Posted by methyl
1) Maybe you have reached the maximum number of open files on your system and need a kernel rebuild.
Particularly vulnerable if you job is running at the same time as something large like a backup.
2) Maybe backup software is locking the file. (long shot)
3) I prefer pludi's idea. Automounter involved?
---------- Post updated at 16:26 ---------- Previous update was at 16:19 ----------
Also check the script file itself for funny characters.
Hi methyl, Thank you. I did a check on the points you had brought up.
1) That's a possibility. I'll need to investigate the number of open files in the day. It sounds logical because the script worked early in the morning before lots of people started arriving for work, it worked occasionally during the day and then almost 100% after 5 pm in the afternoon when most people got off.
2) Our backup software runs against a cloned copy of the disks via symclone. Plus the error which says that the ssh binary isn't found instead of other errors. Less likely this could be it.
3) I've checked again and can confirm that /bin is directly under root and not mounted. Autofs is inactive. Also, if I run this script over a SSH session, it'll work 100%.
4) I've ran an equivalent command over previously "cat -vet" to check for quite the same thing. The command ran when I kicked it off interactively so it shouldn't be a character issue.
Thanks for the suggestions. At least I know what else to check for tomorrow. Being in Asia means it's 3.10am now. My apologies if I couldn't reply more quickly.
J Phang
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LEARN ABOUT DEBIAN
sysstat
SYSSTAT(5) Linux User's Manual SYSSTAT(5)NAME
sysstat - sysstat configuration file.
DESCRIPTION
This file is read by sa1(8) and sa2(8) shell scripts from the sysstat's set of tools. It consists of a sequence of shell variable assign-
ments used to configure sysstat logging. The variables and their meanings are:
HISTORY
The number of days during which a daily data file or a report should be kept. Data files or reports older than this number of days
will be removed by the sa2(8) shell script.
COMPRESSAFTER
Number of days after which daily data files are to be compressed, either by gzip or bzip2.
SADC_OPTIONS
Options that should be passed to sadc(8). With these options (see sadc(8) manual page), you can select some additional data which
are going to be saved in daily data files. These options are used only when a new data file is created. They will be ignored with
an already existing one.
FILES
/etc/sysstat/sysstat
AUTHOR
Sebastien Godard (sysstat <at> orange.fr)
SEE ALSO sadc(8), sa1(8), sa2(8)
http://pagesperso-orange.fr/sebastien.godard/
Linux SEPTEMBER 2010 SYSSTAT(5)