I have a similar problem. Sometimes by restarting alfresco everything crashes, that means i cannot reach …/alfresco (404) and …/share shows the loginscreen but i cannot login 
i'm using alfresco 4.0.e, postgresql and ubuntu.
status of alfresco ist always: tomcat already running. postgresql already running.
by stopping tomcat there are often problems and i have to force a shutdown. i found this topic in another thread and they say i don't have to worry about this.
but maybe these problems have a relation?!
here my catalina.out after restarting everything:
i had this problem when i installed alfresco, too. there i solved it by renaming the folder of my old tomcatversion…
have anyone an idea what happened now? thanks!!!
i'm using alfresco 4.0.e, postgresql and ubuntu.
status of alfresco ist always: tomcat already running. postgresql already running.
by stopping tomcat there are often problems and i have to force a shutdown. i found this topic in another thread and they say i don't have to worry about this.
but maybe these problems have a relation?!
here my catalina.out after restarting everything:
INFO: Scheduler meta-data: Quartz Scheduler (v1.8.3) 'SolrTrackerScheduler' with instanceId 'NON_CLUSTERED'
Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.
NOT STARTED.
Currently in standby mode.
Number of jobs executed: 0
Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 3 threads.
Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered.
14-Sep-2012 14:09:17 org.quartz.impl.StdSchedulerFactory instantiate
INFO: Quartz scheduler 'SolrTrackerScheduler' initialized from an externally provided properties instance.
14-Sep-2012 14:09:17 org.quartz.impl.StdSchedulerFactory instantiate
INFO: Quartz scheduler version: 1.8.3
14-Sep-2012 14:09:17 org.quartz.core.QuartzScheduler start
INFO: Scheduler SolrTrackerScheduler_$_NON_CLUSTERED started.
14-Sep-2012 14:09:17 org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/opt/alfresco-4.0.e/alf_data/solr/workspace-SpacesStore/'
14-Sep-2012 14:09:17 org.apache.solr.core.SolrConfig initLibs
INFO: Adding specified lib dirs to ClassLoader
14-Sep-2012 14:09:17 org.apache.solr.core.SolrConfig <init>
INFO: Loaded SolrConfig: solrconfig.xml
14-Sep-2012 14:09:17 org.apache.solr.schema.IndexSchema readSchema
INFO: Reading Solr Schema
14-Sep-2012 14:09:17 org.apache.solr.schema.IndexSchema readSchema
INFO: Schema name=alfresco
14-Sep-2012 14:09:17 org.apache.solr.util.plugin.AbstractPluginLoader load
INFO: created null: org.apache.solr.analysis.WhitespaceTokenizerFactory
14-Sep-2012 14:09:17 org.apache.solr.util.plugin.AbstractPluginLoader load
INFO: created null: org.apache.solr.analysis.WordDelimiterFilterFactory
14-Sep-2012 14:09:17 org.apache.solr.util.plugin.AbstractPluginLoader load
INFO: created null: org.apache.solr.analysis.LowerCaseFilterFactory
14-Sep-2012 14:09:17 org.apache.solr.util.plugin.AbstractPluginLoader load
INFO: created alfrescoDataType: org.alfresco.solr.AlfrescoDataType
14-Sep-2012 14:09:18 org.apache.solr.handler.component.SpellCheckComponent inform
WARNING: No queryConverter defined, using default converter
14-Sep-2012 14:09:19 org.apache.solr.handler.component.SpellCheckComponent inform
WARNING: No queryConverter defined, using default converter
14-Sep-2012 14:09:19 org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive share.war
Exception in thread "JobAcquisitionThread" java.lang.NullPointerException
at org.activiti.engine.impl.jobexecutor.JobAcquisitionThread.run(JobAcquisitionThread.java:103)
2012-09-14 14:09:21,992 INFO [extensions.webscripts.TemplateProcessorRegistry] [main] Registered template processor freemarker for extension ftl
2012-09-14 14:09:22,046 INFO [extensions.webscripts.ScriptProcessorRegistry] [main] Registered script processor javascript for extension js
2012-09-14 14:09:22,047 INFO [extensions.webscripts.TemplateProcessorRegistry] [main] Registered template processor freemarker for extension ftl
2012-09-14 14:09:22,056 INFO [extensions.webscripts.ScriptProcessorRegistry] [main] Registered script processor javascript for extension js
2012-09-14 14:09:23,239 INFO [extensions.webscripts.DeclarativeRegistry] [main] Registered 312 Web Scripts (+0 failed), 322 URLs
2012-09-14 14:09:23,240 INFO [extensions.webscripts.DeclarativeRegistry] [main] Registered 8 Package Description Documents (+0 failed)
2012-09-14 14:09:23,240 INFO [extensions.webscripts.DeclarativeRegistry] [main] Registered 0 Schema Description Documents (+0 failed)
2012-09-14 14:09:23,387 INFO [extensions.webscripts.AbstractRuntimeContainer] [main] Initialised Spring Surf Container Web Script Container (in 1327.8346ms)
2012-09-14 14:09:23,392 INFO [extensions.webscripts.TemplateProcessorRegistry] [main] Registered template processor freemarker for extension ftl
2012-09-14 14:09:23,395 INFO [extensions.webscripts.ScriptProcessorRegistry] [main] Registered script processor javascript for extension js
14-Sep-2012 14:09:23 org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory ROOT
14-Sep-2012 14:09:23 org.apache.coyote.http11.Http11AprProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
14-Sep-2012 14:09:23 org.apache.coyote.ajp.AjpAprProtocol start
INFO: Starting Coyote AJP/1.3 on ajp-8009
14-Sep-2012 14:09:23 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8443
14-Sep-2012 14:09:23 org.apache.catalina.startup.Catalina start
INFO: Server startup in 47687 ms
14-Sep-2012 14:09:31 org.quartz.core.JobRunShell run
SEVERE: Job Solr.CoreTracker-alfresco threw an unhandled Exception:
org.alfresco.error.AlfrescoRuntimeException: 08140001 GetModelsDiff return status is 404
at org.alfresco.solr.client.SOLRAPIClient.getModelsDiff(SOLRAPIClient.java:1010)
at org.alfresco.solr.tracker.CoreTracker.trackModels(CoreTracker.java:1630)
at org.alfresco.solr.tracker.CoreTracker.trackRepository(CoreTracker.java:1134)
at org.alfresco.solr.tracker.CoreTracker.updateIndex(CoreTracker.java:491)
at org.alfresco.solr.tracker.CoreTrackerJob.execute(CoreTrackerJob.java:45)
at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)i had this problem when i installed alfresco, too. there i solved it by renaming the folder of my old tomcatversion…
have anyone an idea what happened now? thanks!!!
I encountered this issue after the installation of an add-on for Alfresco.
When I checked the folder <strong>ALFRESCO_HOME\tomcat\webapps\alfresco\WEB-INF</strong>
and I saw that the folder <strong>classes</strong> was missing ??!!
So I stopped Alfesco,
I erased the <strong>ALFRESCO_HOME\tomcat\webapps\alfresco</strong>
and I restarted Alfresco, so that tomcat regenerated the alfresco folder properly from alfresco.war
It solved my problem
Cheers
When I checked the folder <strong>ALFRESCO_HOME\tomcat\webapps\alfresco\WEB-INF</strong>
and I saw that the folder <strong>classes</strong> was missing ??!!
So I stopped Alfesco,
I erased the <strong>ALFRESCO_HOME\tomcat\webapps\alfresco</strong>
and I restarted Alfresco, so that tomcat regenerated the alfresco folder properly from alfresco.war
It solved my problem
Cheers
