A few things that changed recently.
I updated to jdk 1.6.0_13
I added the following env variable for tomcat:
export JAVA_OPTS="-server -Xms4096m -Xmx8192m"
Wondering if anyone has insights... I can always put them back if we
think these are bad.
Regarding swordorbserver. FileMgr in SWORD limits number of open
connection. The default, which isn't changed in swordorbserver, is set
to: 35
We could drop this if we think this is a problem. But I think our
server can handle anything we throw at it, so I'd rather up the kernel
limit, if this is our problem.
More comments welcome.
-Troy.
Gregory Hellings wrote:
DM,
On Apr 16, 2009, at 20:09, DM Smith <[email protected]> wrote:
There have been some problems with the server lately.
I think, but am not sure, that tomcat is having problems. I'm not very
up on tomcat, so take what follows with a grain of salt.
For those with server access and appropriate permissions, tomcat logs
have a wealth of info and can be found at:
/opt/tomcat/logs
In catalina.out the following error is repeated frequently:
java.io.FileNotFoundException:
/opt/tomcat/webapps/gobible/WEB-INF/classes/trans_null.properties
(Permission denied)
This is followed by a java stack trace.
I'm extrapolating from times I've seen similar errors in my own code:
the program is failing to initialize a translation name correctly, so
the null appears when a null reference to a string is concerted to the
file name.
The only other errors I see in that file are related to the Bible
Tool, where the process tries to attach to a running process (throwing
an exception) and then starts another process because of the failure.
Other than that this log indicates a heavy usage of the forums.
In catalina2009-04-16.log
There are a lot of problems opening jar files. Doing a spot check
indicates that the jars are fine. But looking a bit closer in the log,
each one of these is followed by a stack trace indicating "Too many
files open"
Musing out loud: It appears that some of the more common jar files are
repeated for each webapp. Should they be put in a common area? (I
don't know enough to know.)
This is definitely possible. In tomcat's top directory there is a place
to put shared jar files, like DB drivers, JSword, Lucene or others. This
only would present a problem if people must keep a different version
than the globally installed one. In that case, precedence is determined
by the configuration of Catalina's classpath.
--Greg
I'm also wondering whether the BibleTool holds too many open file
descriptors? (I have no idea, but JSword had that problem.)
The number of open file descriptors is a tunable kernel parameter, so
maybe it can be adjusted upward?
Anyway, this is probably more heat than light.
In Him,
DM
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