Yes, the script is run via CRON (every minute)
Yes, it looks for keyword from the "new" part of log file
Yes, I received more than 500 same e-mail, when the same error occured more than 500 times
No of e-mails is proportional to no of (same)error messages, whihc i dont want. (I want only one e-mail if the error is recurring)
Thanks
Rajesh
---------- Post updated at 09:41 AM ---------- Previous update was at 09:23 AM ----------
Consider the following situation
I receive an 4 e-mails if the same error is repeating.
Now imagine the situation with 500 errors (same and continous)
What I'm looking at is, if the script detects the same error as detected earlier (due to continous errors generated by the server), it should not send me an e-mail for the second time. Just one e-mail is enough.
This is just to stop inbox full situation
I guess I still don't understand your requirements. You show four lines above and say you only want one message for those four lines (not four messages), but none of the keywords in either of the egrep commands in your script are in those four lines. So, why should any message be sent?
Let me see if I understand what you're trying to do. You're running your log processor every minute, and you're only looking at new messages in the log file each minute. So, are you saying you want a mail message each minute of the day in which that error is reported? With the sixteen keywords in your 1st egrep (there are only fourteen in the 2nd egrep) do I correctly understand that you're OK getting 16 messages each minute for each minute of the day (for a maximum of 23,040 messages in your mailbox each day) as long as no two messages sent by any invocation of your log checker contain the same keyword? Are the lines that you show above supposed to generate mail messages or not? (As I said before, none of your keywords are present in those lines.)
Why are you counting sixteen keywords as errors but only sending e-mail for fourteen of those keywords?
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Discussion started by: cokedude
1 Replies
LEARN ABOUT PLAN9
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - clock daemon
SYNOPSIS
auth/cron [-c]
DESCRIPTION
Cron executes commands at specified dates and times according to instructions in the files /cron/user/cron. It runs only on an authentica-
tion server. Option -c causes cron to create /cron/user and /cron/user/cron for the current user; it can be run from any Plan 9 machine.
Blank lines and lines beginning with # in these files are ignored. Entries are lines with fields
minute hour day month weekday host command
Command is a string, which may contain spaces, that is passed to an rc(1) running on host for execution. The first five fields are integer
patterns for
minute 0-59
hour 0-23
day of month 1-31
month of year 1-12
day of week 0-6; 0=Sunday
The syntax for these patterns is
time : '*'
| range
range : number
| number '-' number
| range ',' range
Each number must be in the appropriate range. Hyphens specify inclusive ranges of valid times; commas specify lists of valid time ranges.
To run the job, cron calls host and authenticates remote execution, equivalent to running rx host command (see con(1)). The user's profile
is run with $service set to rx.
Cron is not a reliable service. It skips commands if it cannot reach host within two minutes, or if the cron daemon is not running at the
appropriate time.
EXAMPLES
Here is the job that mails system news.
% cat /cron/upas/cron
# send system news
15 8-17, 21 *** helix /mail/lib/mailnews
%
SOURCE
/sys/src/cmd/auth/cron.c
SEE ALSO con(1), rc(1)CRON(8)