Ckan Solr Jetty - solr

Question

HTTP ERROR 500
Problem accessing /solr/. Reason:
Severe errors in solr configuration.
Check your log files for more detailed information on what may be wrong.
If you want solr to continue after configuration errors, change:
false
in null
java.lang.RuntimeException: Cannot create directory: /var/lib/solr/data/index
at org.apache.lucene.store.NativeFSLockFactory.acquireTestLock(NativeFSLockFactory.java:74)
at org.apache.lucene.store.NativeFSLockFactory.makeLock(NativeFSLockFactory.java:126)
at org.apache.lucene.store.Directory.makeLock(Directory.java:131)
at org.apache.lucene.index.IndexWriter.init(IndexWriter.java:1549)
at org.apache.lucene.index.IndexWriter.(IndexWriter.java:1407)
at org.apache.solr.update.SolrIndexWriter.(SolrIndexWriter.java:190)
at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:393)
at org.apache.solr.core.SolrCore.(SolrCore.java:546)
at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:137)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:83)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:622)
at org.mortbay.start.Main.invokeMain(Main.java:194)
at org.mortbay.start.Main.start(Main.java:534)
at org.mortbay.jetty.start.daemon.Bootstrap.start(Bootstrap.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:622)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:177)

Answer 1

If you install solr-jetty on ubuntu 18.04, the jetty service has not permission on /var/lib/solr/data/ path.
check this link: https://github.com/ckan/ckan/issues/4762#issuecomment-489658465
shot summary as bellow..
sudo mkdir /etc/systemd/system/jetty9.service.d
vi /etc/systemd/system/jetty9.service.d/solr.conf
solr.conf is new file. add ReadWritePaths config.
[Service]
ReadWritePaths=/var/lib/solr
save file, and
systemctl daemon-reload
sudo service jetty9 restart

Answer 2

It is hard to debug this without knowing which operating system and installation instructions did you use.
Looking at the traceback it looks like there are permissions problems on the Solr data directory:
java.lang.RuntimeException: Cannot create directory: /var/lib/solr/data/index at
A normal package install would have take care of this, but you can try the following to see if it helps:
sudo chown -R jetty.root /var/lib/solr/data
sudo service jetty restart