Alfresco not starting: model parse error

[art99trash]

Alfresco is not starting.

I am running Alfresco Community 5.1 with postgresql on RedHat Linux.

I am getting this error in the log:

May 02, 2016 - 09.05.14tarting Alfresco server…
2016-05-02 09:46:20,024  ERROR [quartz.core.JobRunShell] [SolrTrackerScheduler_Worker-6] Job Solr.CoreWatcher threw an unhandled Exception:
org.alfresco.service.cmr.dictionary.DictionaryException: 04020005 d_dictionary.model.err.parse.failure
        at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:106)
        at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:92)
        at org.alfresco.solr.tracker.ModelTracker.loadPersistedModels(ModelTracker.java:114)
        at org.alfresco.solr.tracker.ModelTracker.<init>(ModelTracker.java:85)
        at org.alfresco.solr.tracker.CoreWatcherJob.registerForCore(CoreWatcherJob.java:123)
        at org.alfresco.solr.tracker.CoreWatcherJob.execute(CoreWatcherJob.java:74)
        at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
        at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
Caused by: org.jibx.runtime.JiBXException: Error accessing document
        at org.jibx.runtime.impl.XMLPullReaderFactory$XMLPullReader.next(XMLPullReaderFactory.java:293)
        at org.jibx.runtime.impl.UnmarshallingContext.toStart(UnmarshallingContext.java:446)
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2750)
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2900)
        at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:101)
        … 7 more
Caused by: java.io.EOFException: input contained no data
        at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:3003)
        at org.xmlpull.mxp1.MXParser.more(MXParser.java:3046)
        at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1410)
        at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395)
        at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)
        at org.jibx.runtime.impl.XMLPullReaderFactory$XMLPullReader.next(XMLPullReaderFactory.java:291)
        … 11 more

Does anyone know what to do about this?
Thanks

[art99trash]

I found that if you have a custom model, a copy of it exists in the alf_data/solr4/model directory.
Mine was zero length. I replaced it with a good copy and I am not getting that error.
However Alfresco is still not starting.

If gets to this point in the log (catalina.out) and stops:

INFO: Starting ProtocolHandler ["http-apr-8080"]
May 02, 2016 10:36:53 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-apr-8009"]
May 02, 2016 10:36:53 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8443"]
May 02, 2016 10:36:53 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 64305 ms
2016-05-02 10:38:00,113  WARN  [alfresco.util.OpenOfficeConnectionTester] [DefaultScheduler_Worker-6] Error trying to query Open Office version information. OpenOffice.org's ConfigurationRegistry not implemented in this version of OOo. This should not affect the operation of OOo.
2016-05-02 10:38:00,113  INFO  [alfresco.util.OpenOfficeConnectionTester] [DefaultScheduler_Worker-6] The OpenOffice connection was re-established.
2016-05-02 10:38:23,730  INFO  [solr.component.AsyncBuildSuggestComponent] [Suggestor-alfresco-1] Loaded suggester shingleBasedSuggestions, took 90759 ms
2016-05-02 10:38:30,032  INFO  [management.subsystems.ChildApplicationContextFactory] [http-bio-8443-exec-9] Starting 'Transformers' subsystem, ID: [Transformers, default]
2016-05-02 10:38:30,216  INFO  [management.subsystems.ChildApplicationContextFactory] [http-bio-8443-exec-9] Startup of 'Transformers' subsystem, ID: [Transformers, default] complete


The solr.log has this error:

2016-05-02 10:34:41,548 ERROR [org.apache.solr.core.SolrCore] java.lang.NullPointerException
        at org.alfresco.solr.AlfrescoSolrCloseHook.preClose(AlfrescoSolrCloseHook.java:71)
        at org.apache.solr.core.SolrCore.close(SolrCore.java:1046)
        at org.apache.solr.core.SolrCores.close(SolrCores.java:117)
        at org.apache.solr.core.CoreContainer.shutdown(CoreContainer.java:347)
        at org.apache.solr.servlet.SolrDispatchFilter.destroy(SolrDispatchFilter.java:200)
        at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:313)
        at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:4890)
        at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5711)
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
        at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1591)
        at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1580)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

[art99trash]

I did a re-index and I am not getting the solr.log errors any longer.
However, Alfresco is still not starting.

[art99trash]

I finally tried iptables –flush   (as root on the machine) and it is now working again.