23 Aug
2016
23 Aug
'16
7:15 a.m.
Hi Vincent,
From: Vincent Massol [mailto:vincent@massol.net]
Sent: Monday, 22 August 2016 8:48 PM
You should try to stop tomcat fully and start it again. It seems you’re only
stopping the webapp and there are issues with xwiki cleanup when doing so.
Let us know if there are still errors.
I've stopped and started as you suggest, but I get the same result. The catalina.out
log gives more data than the one I included before. Below are some selected lines. I
recall that my previous installation generated a lot of warnings relating to Solr, but
it's worrying that there are so many. Also, could the ClassLoader messages be part of
the issue?
Sorry to appear naïve. I've no idea which errors are tolerated in a typical
installation and which are not.
Bryn
Aug 22, 2016 9:07:10 PM org.apache.catalina.core.JreMemoryLeakPreventionListener
lifecycleEvent
SEVERE: Failed to trigger creation of the GC Daemon thread during Tomcat start to prevent
possible memory leaks. This is expected on non-Sun JVMs.
java.lang.ClassNotFoundException: sun.misc.GC
[...]
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:484)
[...]
Aug 22, 2016 9:07:14 PM org.apache.catalina.loader.WebappLoader buildClassPath
INFO: Unknown loader jdk.internal.loader.ClassLoaders$AppClassLoader@5f150435 class
jdk.internal.loader.ClassLoaders$AppClassLoader
Aug 22, 2016 9:08:04 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging
for this logger for a complete list of JARs that were scanned but no TLDs were found in
them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation
time.
2016-08-22 21:08:32,827 [localhost-startStop-1] INFO o.x.s.s.i.EmbeddedSolrInstance -
Starting embedded Solr server...
2016-08-22 21:08:32,888 [localhost-startStop-1] INFO o.x.s.s.i.EmbeddedSolrInstance -
Using Solr home directory: [/var/lib/xwiki/data/solr]
2016-08-22 21:08:39,654 [coreLoadExecutor-6-thread-1] WARN o.i.j.ResourceDMBean
- ISPN000042: Did not find queried attribute with name coreHashCode
[many more lines line this]
2016-08-22 21:08:39,726 [coreLoadExecutor-6-thread-1] ERROR o.a.s.c.CoreContainer
- Error creating core [xwiki]: Error opening new searcher
org.apache.solr.common.SolrException: Error opening new searcher
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:820)
[...]
at java.lang.Thread.run(java.base@9-internal/Thread.java:804)
Caused by: org.apache.solr.common.SolrException: Error opening new searcher
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1662)
[...]
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:793)
... 9 common frames omitted
Caused by: java.io.IOException: Unable to unmap the mapped buffer:
MMapIndexInput(path="/var/lib/xwiki/data/solr/xwiki/data/index/segments_1")
at org.apache.lucene.store.MMapDirectory$2.freeBuffer(MMapDirectory.java:329)
[...]
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1631)
... 12 common frames omitted
Caused by: java.lang.IllegalAccessException: class
org.apache.lucene.store.MMapDirectory$2$1 cannot access class jdk.internal.ref.Cleaner (in
module java.base) because module java.base does not export jdk.internal.ref to unnamed
module @
65abf25c
at
sun.reflect.Reflection.throwIllegalAccessException(java.base@9-internal/Reflection.java:411)
[...]
at org.apache.lucene.store.MMapDirectory$2.freeBuffer(MMapDirectory.java:314)
... 22 common frames omitted
2016-08-22 21:08:39,729 [localhost-startStop-1] ERROR .o.i.DefaultObservationManager -
Failed to lookup listeners
org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [role =
[interface org.xwiki.observation.EventListener] hint = [solr.availablelocales]]
at
org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:216)
[...]
at java.lang.Thread.run(java.base@9-internal/Thread.java:804)
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup
component [org.xwiki.search.solr.internal.SolrInstanceProvider] identified by [role =
[javax.inject.Provider<org.xwiki.search.solr.internal.api.SolrInstance>] hint =
[default]]
at
org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:394)
[...] at
org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:214)
... 19 common frames omitted
Caused by: org.xwiki.component.phase.InitializationException: Failed to lookup configured
Solr instance type [embedded]
at
org.xwiki.search.solr.internal.SolrInstanceProvider.initialize(SolrInstanceProvider.java:73)
[...] at
org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:392)
... 24 common frames omitted
Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup
component [org.xwiki.search.solr.internal.EmbeddedSolrInstance] identified by [role =
[interface org.xwiki.search.solr.internal.api.SolrInstance] hint = [embedded]]
at
org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:394)
at
org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190)
at
org.xwiki.search.solr.internal.SolrInstanceProvider.initialize(SolrInstanceProvider.java:71)
... 28 common frames omitted
Caused by: org.xwiki.component.phase.InitializationException: Failed to initialize the
Solr embedded server with home directory set to [/var/lib/xwiki/data/solr]
at
org.xwiki.search.solr.internal.EmbeddedSolrInstance.initialize(EmbeddedSolrInstance.java:103)
[...] at
org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:392)
... 30 common frames omitted
Caused by: org.apache.solr.client.solrj.SolrServerException: Failed to initialize the Solr
core. Please check the configuration and log messages.
at
org.xwiki.search.solr.internal.EmbeddedSolrInstance.createCoreContainer(EmbeddedSolrInstance.java:113)
at
org.xwiki.search.solr.internal.EmbeddedSolrInstance.initialize(EmbeddedSolrInstance.java:96)
... 34 common frames omitted
2016-08-22 21:08:39,876 [Finalizer] ERROR o.a.s.u.SolrIndexWriter - SolrIndexWriter
was not closed prior to finalize(), indicates a bug -- POSSIBLE RESOURCE LEAK!!!
2016-08-22 21:08:39,883 [Finalizer] ERROR o.a.s.u.SolrIndexWriter - Error closing
IndexWriter
java.lang.NullPointerException: null
at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3128)
[...] at
java.lang.ref.Finalizer$FinalizerThread.run(java.base@9-internal/Finalizer.java:217)
Aug 22, 2016 9:08:40 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deployment of configuration descriptor /etc/tomcat8/Catalina/localhost/xwiki.xml has
finished in 89,728 ms
Aug 22, 2016 9:08:40 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat8/webapps/ROOT
Aug 22, 2016 9:08:41 PM org.apache.catalina.loader.WebappLoader buildClassPath
INFO: Unknown loader jdk.internal.loader.ClassLoaders$AppClassLoader@5f150435 class
jdk.internal.loader.ClassLoaders$AppClassLoader
Aug 22, 2016 9:08:41 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging
for this logger for a complete list of JARs that were scanned but no TLDs were found in
them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation
time.
Aug 22, 2016 9:08:41 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory /var/lib/tomcat8/webapps/ROOT has finished
in 981 ms
Aug 22, 2016 9:08:41 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Aug 22, 2016 9:08:42 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 90900 ms