strange behaviour of log4j
Vogtländer, Arend (bos <av <at> bos-bremen.de>
2009-03-06 13:40:44 GMT
Dear Sir or Madam,
we have monitored a quite strage effect in log4j logfiles, which are
produced on a JBoss applicationserver of one of our customers.
I tried to google about it, but couldn´t find any hint, that somebody ever
had the same problem, this is why i come to ask you about it.
the effect ist as follows:
the logfiles start with a line of nullvalues (0x00). this line is sometimes
a large ammounts of screenpages long.
It seems that there ist a nullvalue pushed to the beginning of the logfile
every some time.
E.g. today we had a logifle with a size of ~50MB content.
anyway there were only 69 Lines of entries, and a preceeding line with
50663124 "00" - Bytes.
We got the file zipped, and i would say, it has a phenomenal
compressionrate: the original size is 50.674.628 Bytes and compressed it has
50.478 Bytes. That comes to a Factor of ~1000, wow
Anyway, as we have no other customer, who has a similar problem, and there
seems to be nobody else having such a problem, I´d be very happy for a short
estimation, where I could have a look to find a cause for the effect.
The OS is a SuSE10, Applicationserver is JBoss 4.2.2, and the Log4j Version