Am 17.04.2009 um 04:26 schrieb Troy A. Griffitts:
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.
I never have seen Tomcat with so much initial heap.
But I never have seen Tomcat with so many web application either.
So I guess it is ok.
Is there a limit in the Tomcat docs on this?
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 <dmsm...@crosswire.org> 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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