Recurrent error SOLR

[jsanjose]

I'm experiencing a SOLR error that makes impossible authentication on Alfresco. Server worked correctly, but after a reboot:

From logs I saw a recurrent error on SOLR (it appears each 10 secs):

solr6_1 1 2022-02-17 07:17:50.113 ERROR (org.alfresco.solr.AlfrescoCoreAdminHandler@37 Obd86d_Worker-14) [ ] o.a.s.t.AbstractTracker [alfresco / MODEL@655729129 / IT #1645082270021] Tra cking failure. See the stacktrace below for further details. 
solr6_1 1 org.alfresco.error.AlfrescoRuntimeException: 01170040 api/solr/modelsdiff return status:404 
solr6_1 at org.alfresco.solr.client.SOLRAPIClient.callRepository(SOLRAPIClient.java:1596) 
solr6_1 at org.alfresco.solr.client.SOLRAPIClient.getModelsDiff(SOLRAPIClient.java:1103) 
solr6_1 at org.alfresco.solr.tracker.ModelTracker.trackModelsImpl(ModelTracker.java:313) 
solr6_1 at org.alfresco.solr.tracker.ModelTracker.trackModels(ModelTracker.java:275) 
solr6_1 at org.alfresco.solr.tracker.ModelTracker.doTrack(ModelTracker.java: 235) 
solr6_1 at org.alfresco.solr.tracker.AbstractTracker.track(AbstractTracker.java:242) 
solr6_1 at org.alfresco.solr.tracker.TrackerJob.execute(TrackerJob.java:60) 
solr6_1 at org.quartz.core.JobRunShell.run(JobRunShell.java:202) 
solr6_1 at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) 

Any ideas?

Thanks!

[angelborroy]

Search Services is connecting to Alfresco Repository to get nodes information and to index that into SOLR core.

This line...

api/solr/modelsdiff return status:404

... means that Search Services (SOLR) is not able to find the Alfresco Repository URL (404 Not Found).

Review your Search Service configuration in solrcore.properties (for both cores alfresco and archive) to check if you are using the right values:

alfresco.host=localhost
alfresco.port=8080
alfresco.baseUrl=/alfresco