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solr4 continuously throws exceptions

Question asked by treyboudreau on Nov 6, 2014
Latest reply on Dec 26, 2014 by mperk
This message, and others like it, show up every few seconds in the solr.log after a new installation of Alfresco CE 5.0.b on Ubuntu 14.04 LTS:


10:59:30,007 ERROR [org.quartz.core.JobRunShell] Job Solr.ModelTracker-archive threw an unhandled Exception:
java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at org.alfresco.solr.SolrInformationServer.getFieldValueLong(SolrInformationServer.java:588)
    at org.alfresco.solr.SolrInformationServer.getTrackerInitialState(SolrInformationServer.java:996)
    at org.alfresco.solr.tracker.AbstractTracker.getTrackerState(AbstractTracker.java:251)
    at org.alfresco.solr.tracker.AbstractTracker.track(AbstractTracker.java:144)
    at org.alfresco.solr.tracker.TrackerJob.execute(TrackerJob.java:47)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
10:59:30,010 ERROR [org.quartz.core.ErrorLogger] Job (Solr.ModelTracker-archive threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: java.lang.NumberFormatException: null]
    at org.quartz.core.JobRunShell.run(JobRunShell.java:227)
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
Caused by: java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at org.alfresco.solr.SolrInformationServer.getFieldValueLong(SolrInformationServer.java:588)
    at org.alfresco.solr.SolrInformationServer.getTrackerInitialState(SolrInformationServer.java:996)
    at org.alfresco.solr.tracker.AbstractTracker.getTrackerState(AbstractTracker.java:251)
    at org.alfresco.solr.tracker.AbstractTracker.track(AbstractTracker.java:144)
    at org.alfresco.solr.tracker.TrackerJob.execute(TrackerJob.java:47)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
    … 1 more

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