On Aug 2, 2006, at 5:37 AM, ysuneelreddy wrote:
Hi.
Iam working on Log4j-1.3alpha-8
Iam facing problem like.
The log messages inserting only one table logging_event
The data not inserting in
Logging_event_exception,Logging_event_property
tables.
You are close to being completely ignored by people who are inclined
to help. You have been previously cautioned on proper mailing list
etiquette. In this case, it appears that you have asked basically
the same question 5 or 6 times in very quick succession and have
ignored the responses that you have received.
The reason that there are no entries in the logging_event_exception
and logging_event_property tables are that there is no exception or
property associated with your logging requests. The only reason they
exist as distinct tables is that their is not a 1-1 correspondence
between logging events and exceptions or logging events and
properties. A logging event will only have an associated exception
if you pass one in on the call like:
try {
...
} catch(Exception e) {
logger.error("Attempt to create foobar failed", e);
}
An logging event will only have associated properties if you call
MDC.put() or LoggerRepository.setProperty.
MDC.put("ipaddr", ipaddr);
MDC.put("username", "ysuneelreddy");
...
logger.info("Starting transaction");
If you looked at the code for DBAppender.java, you could see that
entries into logging_event_exception are inserted at line 319 and
that block is conditional on event.getThrowableStrRep() != null. You
should then ask yourself, when would event.getThrowableStrRep() ==
null. And it would come to you, that probably when I didn't have a
Throwable as part of the event.
A similar analysis of the code around line 286 would show that there
are no entries in that table when propertyKeys.size() == 0.
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