[sword-devel] CrossWire Server Problems

Manfred Bergmann bergmannmd at web.de
Fri Apr 17 00:19:41 MST 2009

Am 17.04.2009 um 02:09 schrieb DM Smith:

> 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.

There also was a "Permission denied" for swordweb.
I've seen that those files, in fact all webapps are owned by a user  
not "tomcat".
Although they have the read flag for "other" the owner is not tomcat  
nor is tomcat in the users's group.
Maybe for some reason tomcat need write rights.

> 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.)
> 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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