Hallo,
I have a Mac Os X server running a number of WebObjects Applications
for two years now.
In the morning the server was no longer reachable via ssh or via Apache.
The reason was a logfile of one Application instance which had the
size of 211GB.
The instances are all scheduled nightly thus the file had piled up to
that size from sometime early morning
to Midday. As the webobjects logs are pure textfiles something must
have gone completely wrong in this instance
today to get that amount of output. Unfortunately this file had to be
deleted at once (it blocked the disk) without a chance to
have a look on it.
Another instance had this in the logfiles (some of this):
22192168 [WorkerThread64] WARN NSLog - <WOWorkerThread id=64
socket=null> IOException occurred while accepting server socket:
java.net.SocketException: Too many open files in system
22192168 [WorkerThread65] WARN NSLog - <WOWorkerThread id=65
socket=null> IOException occurred while accepting server socket:
java.net.SocketException: Too many open files in system
Has someone seen it and could this be the cause of my problem (I can
image it filling a logfile when repeated often enough to a enourmous
size)?
If this could be the cause, does someone know how to detect this
bevore I get to a filesize of the logfile
which kills the server? Or what is likely to be the reason of this.
The App has been running stable for years, no large logfiles...
By the way, is there a way to detect the size of a textfile (logfile)
and have a process send me a message that something goes wrong,
when the file reaches a certain size?
Thanks a lot
Ute
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