SEARCH-2568: Skip indexing transactions from a given Transaction Id.

This is a DEVELOPMENT feature, not recommended for PROD environments.

search-services/alfresco-search/src/main/java/org/alfresco/solr/tracker/MetadataTracker.java

@@ -181,6 +181,13 @@ public class MetadataTracker extends ActivatableTracker
         minTxnIdRange = new Pair<>(Long.valueOf(minTxninitialRangeString[0]), Long.valueOf(minTxninitialRangeString[1]));
         forkJoinPool = new ForkJoinPool(matadataTrackerParallelism);
 
+        if (p.getProperty("solr.initial.transaction.id") != null)
+        {
+            Long initialTransactionId = Long.parseLong(p.getProperty("solr.initial.transaction.id"));
+            minTxnIdRange = new Pair<>(initialTransactionId, initialTransactionId + 2000l);
+            LOGGER.info("Start indexing from transaction {}, previous transactions will be ignored.", initialTransactionId);
+        }
+
         RUN_LOCK_BY_CORE.put(coreName, new Semaphore(1, true));
         WRITE_LOCK_BY_CORE.put(coreName, new Semaphore(1, true));
         

search-services/alfresco-search/src/main/resources/solr/instance/templates/rerank/conf/solrcore.properties

@@ -225,6 +225,12 @@ solr.request.content.compress=false
 #
 solr.initial.transaction.range=0-2000
 
+#
+# Start indexing from a given Transaction Id, skipping the previous ones
+# WARNING: This is a DEVELOPMENT feature and it must not be used in PROD environments
+#
+#solr.initial.transaction.id=
+
 #
 # Limit the maximum text size of transformed content sent to the index - in bytes
 #