[opencms-dev] Development Workplace with OC11 - Solr error

[Daniel Seidel]

Hi Peter,

how do you start/stop tomcat? Do you use the default solrconfig.xml 
(WEB-INF/solr/configsets/default/conf/solrconfig.xml)?

Best, Daniel

Am 15.02.21 um 13:53 schrieb Hanspeter Klapf:
> Hello,
> using OpenCms since version 7.5, I've tried various approaches for the 
> development of modules. In previous versions I used some 
> Eclipse-Plugin for module-deployment, then the Eurelis Ant Task, later 
> I combined this with WebDAV-Access.
> Since version 9.5, I was quite happy with running OpenCms on a Tomcat 
> locally, an Eclipse-Projekt with a dynamic folder pointing to a 
> mounted WebDAV-Path on this instance and a few Ant-Tasks for 
> synchronizing the Project-Files with SVN, building Java-Classes and 
> publish/export my module via CmsShell.
> Now I am trying this usage on version 11.0.2 and it basically works, 
> but my Solr-Index is quite often damaged, I get the following 
> stacktrace at startup:
> INFO [pencms.search.CmsSearchManager:2677] . Search index         : 
> Successfully configured search index "Solr Online" for project "Online"
> INFO [pencms.search.CmsSearchManager:1807] . Search Solr          : 
> Solr index directory created for index "Solr Offline" 
> (C:\DEV\apache-tomcat-9.0.39_oc11\webapps\opencms\WEB-INF\index\Solr 
> Offline).
> ERROR [he.solr.update.SolrIndexWriter: 341] SolrIndexWriter was not 
> closed prior to finalize(), indicates a bug -- POSSIBLE RESOURCE LEAK!!!
> ERROR [he.solr.update.SolrIndexWriter: 291] Error closing IndexWriter
> java.lang.NullPointerException: null
>     at 
> org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3603) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>     at 
> org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3563) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>     at 
> org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1044) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>     at 
> org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1087) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>     at 
> org.apache.solr.update.SolrIndexWriter.close(SolrIndexWriter.java:286) 
> [solr-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 - 
> jimczi - 2019-03-08 12:06:06]
>     at 
> org.apache.solr.update.SolrIndexWriter.finalize(SolrIndexWriter.java:342) 
> [solr-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 - 
> jimczi - 2019-03-08 12:06:06]
>     at java.lang.System$2.invokeFinalize(System.java:2117) [?:?]
>     at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:87) [?:?]
>     at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:171) 
> [?:?]
>     Suppressed: java.lang.NullPointerException
>         at 
> org.apache.lucene.index.IndexWriter.rollbackInternalNoCommit(IndexWriter.java:2288) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>         at 
> org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2266) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>         at 
> org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:1051) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>         at 
> org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1087) 
> ~[lucene-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 
> - jimczi - 2019-03-08 11:58:55]
>         at 
> org.apache.solr.update.SolrIndexWriter.close(SolrIndexWriter.java:286) 
> [solr-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 - 
> jimczi - 2019-03-08 12:06:06]
>         at 
> org.apache.solr.update.SolrIndexWriter.finalize(SolrIndexWriter.java:342) 
> [solr-core-8.0.0.jar:8.0.0 2ae4746365c1ee72a0047ced7610b2096e438979 - 
> jimczi - 2019-03-08 12:06:06]
>         at java.lang.System$2.invokeFinalize(System.java:2117) [?:?]
>         at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:87) [?:?]
>         at 
> java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:171) [?:?]
> If that's the case, I have to delete the indexes and rebuild them 
> (CmsShell-Task rebuildAllIndexes). Allthough this is working, it is 
> quite anoying and takes quite long.
> At Tomcat-shutdown I get the following message, don't know if this is 
> related...
> WARNING [main] 
> org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads 
> The web application [opencms] appears to have started a thread named 
> [Notify_null] but has failed to stop it. This is very likely to create 
> a memory leak. Stack trace of thread:
>  java.base at 11/java.lang.Object.wait(Native Method)
>  java.base at 11/java.lang.Object.wait(Object.java:328)
>  org.alfresco.jlan.smb.server.notify.NotifyChangeHandler.run(NotifyChangeHandler.java:1008)
>  java.base at 11/java.lang.Thread.run(Thread.java:834)
> I'm grateful for suggestions as to how I could set up my environment 
> better or what the cause of this behaviour may be.
> BR,
>   Peter
>
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-- 
Kind Regards,
Daniel.
  
-------------------

Daniel Seidel

Alkacon Software GmbH & Co. KG - The OpenCms Experts
http://www.alkacon.com - http://www.opencms.org

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