Graham,
I think you make be on to something with the loading of xmlui. I have now
discovered that the problem ONLY occurs when I deploy xmlui or jspui. I can
start every other webapp and the entire startup process takes just over 2
seconds. Starting either xmlui or jspui results in a startup of nearly 3
minutes each. Also, the only time that I see the "No appenders could be found
for logger warnings" is when I start one of these two webapps.
I am entirely at a loss for why this is happening. It never happened prior to
the upgrade.
Blessings,
Jason
From: Graham Triggs [mailto:[email protected]]
Sent: Wednesday, April 07, 2010 5:50 AM
To: Jason Fowler
Cc: [email protected]
Subject: Re: [Dspace-tech] log4j causing slowness for DSpace
Jason,
It's highly unlikely that Log4J is causing the startup to be slow. Whilst your
startup takes in the region of 10 minutes, there is no indication in the log as
to when each of those log4j warnings appeared, or what was occurring at the
time.
The regular re-occurrence of org.apache.commons.digester.Digester.sax appender
warnings, and the org.apache.catalina.startup.Embedded warning, would suggest
that the application server itself (Tomcat?) is missing some logging
configuration.
Those Digester messages look like they relate to the initialization of each
webapp deployed to the server - ie. where it loads WEB-INF/web.xml (and
correlating with the 'using dspace.cfg' messages that would also appear with
each one).
Deploying multiple web applications can take some time - loading the JARs,
starting any listeners / servlets that are set to load on startup. In the case
of xmlui (and Solr?) at least that will trigger a fairly significant
initialization process.
And it appears that you are deploying the xmlui application twice (once as
xmlui, and once as root?)
Regards,
G
On 5 April 2010 21:50, Jason Fowler <[email protected]<mailto:[email protected]>>
wrote:
I've been beating my brains in over this issue, and I have tried every possible
solution I can find. I've recently migrated to 1.6.0, and since making the
change, problems with log4j occur at startup. This makes my Dspace startup take
ten minutes. I've narrowed down the problem (I think) to being an issue with
log4j.
I just appended a date stamp to my catalina.out file while I restarted. I have
output it below. The first thing that shows up after the stamp is log4j errors.
After churning for 10 minutes, everything works fine, even logging, solr, etc.
Does anyone have any idea what might be causing this problem? If so, many, many
thanks in advance.
Mon Apr 5 15:29:51 CDT 2010
log4j:WARN No appenders could be found for logger
(org.apache.catalina.startup.Embedded).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN No appenders could be found for logger
(org.apache.commons.digester.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
INFO: Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
INFO: Using dspace provided log configuration (log.init.config)
INFO: Loading: /mnt/storage/dspace/config/log4j.properties
Loading catalog:
file:/usr/local/apache-tomcat-5.5.26/work/Catalina/localhost/xmlui/cocoon_xml_resolver_entities/catalog
log4j:WARN No appenders could be found for logger
(org.apache.commons.digester.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
INFO: Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
INFO: Using dspace provided log configuration (log.init.config)
INFO: Loading: /mnt/storage/dspace/config/log4j.properties
- Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
- Using dspace provided log configuration (log.init.config)
- Loading: /mnt/storage/dspace/config/log4j.properties
log4j:WARN No appenders could be found for logger
(org.apache.commons.digester.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
INFO: Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
INFO: Using dspace provided log configuration (log.init.config)
INFO: Loading: /mnt/storage/dspace/config/log4j.properties
log4j:WARN No appenders could be found for logger
(org.apache.commons.digester.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
INFO: Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
INFO: Using dspace provided log configuration (log.init.config)
INFO: Loading: /mnt/storage/dspace/config/log4j.properties
Loading catalog:
file:/usr/local/apache-tomcat-5.5.26/work/Catalina/localhost/_/cocoon_xml_resolver_entities/catalog
log4j:WARN No appenders could be found for logger
(org.apache.commons.digester.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
INFO: Loading provided config file: /mnt/storage/dspace/config/dspace.cfg
INFO: Using dspace provided log configuration (log.init.config)
INFO: Loading: /mnt/storage/dspace/config/log4j.properties
Apr 5, 2010 3:39:31 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: SolrDispatchFilter.init()
Apr 5, 2010 3:39:31 PM org.apache.solr.core.SolrResourceLoader locateInstanceDir
INFO: Using JNDI solr.home: /mnt/storage/dspace/solr
Jason Fowler, CA, MSLS
Archives and Special Collections Librarian
The Southern Baptist Theological Seminary
Vice President, ALABI
[email protected]<mailto:[email protected]>
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