Hello again,   Finally, we decided to remove audit_logs Collection from solr and recreated it again.   curl --negotiate -u : "http://$(hostname -f):8886/solr/admin/collections?action=DELETE&name=audit_logs"   curl --negotiate -u : "http://$(hostname -f):8886/solr/admin/collections?action=CREATE&name=audit_logs&collection.configName=audit_logs&autoAddReplicas=false&nrtReplicas=2&pullReplicas=0&ReplicafionFactor=2&maxShardsPerNode=4&numShards=2"   It seems that doing this  we solved our error with the document containing the bad input string.   java.lang.NumberFormatException: For input string: "t rue" However, there is still the ERROR:   ERROR [ ] org.apache.solr.update.processor.DocExpirationUpdateProcessorFactory$DeleteExpiredDocsRunnable (DocExpirationUpdateProcessorFactory.java:431) - Runtime error in periodic deletion of expired docs: null   But I understand that this only means that solr has nothing "expired" to remove, right?   Thank you very much.   Cheers,   Carles ... View more