[log4perl-devel] Interesting Bug/Feature

[Michael S. <mic...@is...>]

The essence of this bug, is that Log4Perl dies silently when writing to
a logfile larger than the users 'ulimit'.

It manifested when I was using a script in a postfix alias
(/etc/postfix/aliases)=20

test: "|/usr/local/adm/script.pl"

I had the Log4Perl configured to send email and to write to the logfile.

When I ran the tests by sending to the alias, I got the emails from
log4perl, but nothing was in the logfile. No exceptions or errors were
thrown.

When I ran the script manually, it worked (I got the e-mails, and
entries in the logfile).=20

The logfile at the time was 64MB, and the postfix 'message_size_limit'
was set to 20MB.

From what I can tell, the 'shell' that postfix spawns as user nobody,
when it executes the script, has the ulimit set to the value of the
'message_size_limit'.

As soon as I made it write to a new file, I got the messages in the
logfile (file had identical permissions)

I changed it back to the old file, and didn't get messages.

I nulled the logfile and tried again, and then I got the messages in the
logfile.

The problem is , that Log4Perl doesn't throw any kind of exception or
error when it attempts to write to a file larger than its ulimit.

Can this be logged as a bug, I am happy to provide any further detail
you may require

Mike


---
Of course I don't look busy.....I did it right the first time.=20
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