[7.14] Fix GeoIpProcessor when there's no updated db (#74944) (#74947)

* Fix GeoIpProcessor when there's no updated db (#74944)

This change fixes problem with GeoIpProcessor when there's GeoIpTaskState present in the cluster state but there's no database matching the one used by the processor. It can happen when there are some but not all databases already updated.

* fix compilation

Co-authored-by: Przemko Robakowski <przemko.robakowski@elastic.co>

modules/ingest-geoip/src/main/java/org/elasticsearch/ingest/geoip/GeoIpProcessor.java

@@ -436,7 +436,9 @@ public GeoIpProcessor create(
                     return true;
                 }
                 GeoIpTaskState state = (GeoIpTaskState) task.getState();
-                return state.getDatabases().get(databaseFile).isValid(currentState.metadata().settings());
+                GeoIpTaskState.Metadata metadata = state.getDatabases().get(databaseFile);
+                // we never remove metadata from cluster state, if metadata is null we deal with built-in database, which is always valid
+                return metadata == null || metadata.isValid(currentState.metadata().settings());
             };
             return new GeoIpProcessor(processorTag, description, ipField, supplier, isValid, targetField, properties, ignoreMissing,
                 firstOnly);

modules/ingest-geoip/src/main/java/org/elasticsearch/ingest/geoip/IngestGeoIpPlugin.java

@@ -64,6 +64,7 @@
 
 import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
 import static org.elasticsearch.index.mapper.MapperService.SINGLE_MAPPING_NAME;
+import static org.elasticsearch.ingest.IngestService.INGEST_ORIGIN;
 import static org.elasticsearch.ingest.geoip.GeoIpDownloader.DATABASES_INDEX;
 import static org.elasticsearch.ingest.geoip.GeoIpDownloader.GEOIP_DOWNLOADER;
 
@@ -169,7 +170,7 @@ public Collection<SystemIndexDescriptor> getSystemIndexDescriptors(Settings sett
                 .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0)
                 .put(IndexMetadata.SETTING_AUTO_EXPAND_REPLICAS, "0-1")
                 .build())
-            .setOrigin("geoip")
+            .setOrigin(INGEST_ORIGIN)
             .setVersionMetaKey("version")
             .setPrimaryIndex(DATABASES_INDEX)
             .setNetNew()

modules/ingest-geoip/src/test/java/org/elasticsearch/ingest/geoip/GeoIpProcessorFactoryTests.java

@@ -9,17 +9,20 @@
 package org.elasticsearch.ingest.geoip;
 
 import com.carrotsearch.randomizedtesting.generators.RandomPicks;
+
 import org.elasticsearch.ElasticsearchParseException;
 import org.elasticsearch.ResourceNotFoundException;
 import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.ClusterState;
+import org.elasticsearch.cluster.metadata.Metadata;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.Randomness;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.index.VersionType;
 import org.elasticsearch.ingest.IngestDocument;
 import org.elasticsearch.ingest.IngestService;
 import org.elasticsearch.ingest.RandomDocumentPicks;
+import org.elasticsearch.persistent.PersistentTasksCustomMetadata;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.test.StreamsUtils;
 import org.elasticsearch.threadpool.TestThreadPool;
@@ -367,6 +370,26 @@ public void testFallbackUsingDefaultDatabases() throws Exception {
         }
     }
 
+    public void testDefaultDatabaseWithTaskPresent() throws Exception {
+        PersistentTasksCustomMetadata tasks = PersistentTasksCustomMetadata.builder()
+            .addTask(GeoIpDownloader.GEOIP_DOWNLOADER, GeoIpDownloader.GEOIP_DOWNLOADER, null, null)
+            .updateTaskState(GeoIpDownloader.GEOIP_DOWNLOADER, GeoIpTaskState.EMPTY)
+            .build();
+        ClusterState clusterState = ClusterState.builder(ClusterState.EMPTY_STATE)
+            .metadata(Metadata.builder().putCustom(PersistentTasksCustomMetadata.TYPE, tasks))
+            .build();
+        when(clusterService.state()).thenReturn(clusterState);
+        GeoIpProcessor.Factory factory = new GeoIpProcessor.Factory(databaseRegistry, clusterService);
+
+        Map<String, Object> config = new HashMap<>();
+        config.put("field", "_field");
+        String processorTag = randomAlphaOfLength(10);
+
+        GeoIpProcessor processor = factory.create(null, processorTag, null, config);
+
+        processor.execute(RandomDocumentPicks.randomIngestDocument(random(), org.elasticsearch.core.Map.of("_field", "89.160.20.128")));
+    }
+
     public void testFallbackUsingDefaultDatabasesWhileIngesting() throws Exception {
         copyDatabaseFile(geoipTmpDir, "GeoLite2-City-Test.mmdb");
         GeoIpProcessor.Factory factory = new GeoIpProcessor.Factory(databaseRegistry, clusterService);