diff --git a/logs/elasticsearch.log b/logs/elasticsearch.log
new file mode 100644
index 000000000..4feea4ac4
--- /dev/null
+++ b/logs/elasticsearch.log
@@ -0,0 +1,21 @@
+2024-06-05 15:53:39 INFO [org.elasticsearch.node.Node.<init>(Node.java:254)] - initializing ...
+2024-06-05 15:53:39 INFO [org.elasticsearch.env.NodeEnvironment.maybeLogHeapDetails(NodeEnvironment.java:403)] - heap size [1.5gb], compressed ordinary object pointers [true]
+2024-06-05 15:53:39 INFO [org.elasticsearch.node.Node.<init>(Node.java:282)] - node name [testNodeCgRvk], node ID [EjlVGLrVQj-ggfa4xkZaGw]
+2024-06-05 15:53:39 INFO [org.elasticsearch.node.Node.<init>(Node.java:286)] - version[5.6.3], pid[462016], build[1a2f265/2017-10-06T20:33:39.012Z], OS[Linux/5.15.0-107-generic/amd64], JVM[Private Build/OpenJDK 64-Bit Server VM/17.0.10/17.0.10+7-Ubuntu-122.04.1]
+2024-06-05 15:53:39 INFO [org.elasticsearch.node.Node.<init>(Node.java:299)] - JVM arguments [-Xmx1536m]
+2024-06-05 15:53:39 INFO [org.elasticsearch.plugins.PluginsService.logPluginInfo(PluginsService.java:175)] - no modules loaded
+2024-06-05 15:53:39 INFO [org.elasticsearch.plugins.PluginsService.logPluginInfo(PluginsService.java:178)] - loaded plugin [org.elasticsearch.transport.Netty4Plugin]
+2024-06-05 15:53:43 INFO [org.elasticsearch.discovery.DiscoveryModule.<init>(DiscoveryModule.java:99)] - using discovery type [single-node]
+2024-06-05 15:53:44 INFO [org.elasticsearch.node.Node.<init>(Node.java:515)] - initialized
+2024-06-05 15:53:44 INFO [org.elasticsearch.node.Node.start(Node.java:656)] - starting ...
+2024-06-05 15:53:45 INFO [org.elasticsearch.transport.TransportService.doStart(TransportService.java:212)] - publish_address {127.0.0.1:19201}, bound_addresses {[::1]:19201}, {127.0.0.1:19201}
+2024-06-05 15:53:45 INFO [org.elasticsearch.cluster.service.ClusterService.publishAndApplyChanges(ClusterService.java:725)] - new_master {testNodeCgRvk}{EjlVGLrVQj-ggfa4xkZaGw}{TXTZxvgQRQG7hLqrD9_wZw}{127.0.0.1}{127.0.0.1:19201}, reason: single-node-start-initial-join[{testNodeCgRvk}{EjlVGLrVQj-ggfa4xkZaGw}{TXTZxvgQRQG7hLqrD9_wZw}{127.0.0.1}{127.0.0.1:19201}]
+2024-06-05 15:53:45 INFO [org.elasticsearch.http.netty4.Netty4HttpServerTransport.doStart(Netty4HttpServerTransport.java:321)] - publish_address {127.0.0.1:19200}, bound_addresses {[::1]:19200}, {127.0.0.1:19200}
+2024-06-05 15:53:45 INFO [org.elasticsearch.node.Node.start(Node.java:759)] - started
+2024-06-05 15:53:45 INFO [org.elasticsearch.gateway.GatewayService$GatewayRecoveryListener$1.clusterStateProcessed(GatewayService.java:301)] - recovered [0] indices into cluster_state
+2024-06-05 15:53:48 INFO [org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execute(MetaDataCreateIndexService.java:454)] - [cg] creating index, cause [auto(bulk api)], templates [], shards [5]/[1], mappings []
+2024-06-05 15:53:50 INFO [org.elasticsearch.cluster.metadata.MetaDataDeleteIndexService.deleteIndices(MetaDataDeleteIndexService.java:100)] - [cg/SNRDQ_6wRV-WGUFipFgNoA] deleting index
+2024-06-05 15:53:50 INFO [org.elasticsearch.node.Node.stop(Node.java:769)] - stopping ...
+2024-06-05 15:53:50 INFO [org.elasticsearch.node.Node.stop(Node.java:798)] - stopped
+2024-06-05 15:53:50 INFO [org.elasticsearch.node.Node.close(Node.java:816)] - closing ...
+2024-06-05 15:53:50 INFO [org.elasticsearch.node.Node.close(Node.java:888)] - closed
diff --git a/src/test/resources/cg/output-es-bulk.ndjson b/src/test/resources/cg/output-es-bulk.ndjson
index 82ad1c37d..425ab92e9 100644
--- a/src/test/resources/cg/output-es-bulk.ndjson
+++ b/src/test/resources/cg/output-es-bulk.ndjson
@@ -1,4 +1,4 @@
 {"index":{"_index":"cg","_type":"rvk"}}
-{"rvk":["MG 11380","MF 3390","MG 11380","MC 7200","MF 3390","MG 11380"],"id":"990067531130206441"}
+{"rvk":["MG 11380","MF 3390","MC 7200"],"id":"990067531130206441"}
 {"index":{"_index":"cg","_type":"rvk"}}
-{"rvk":["NQ 2360","NY 4760","BD 7100","NQ 2360","NY 4760","NQ 2360","NY 4760","BD 7100","NQ 2360","NY 4760"],"id":"990019247190206441, 990063057720206441, 990063668050206441"}
+{"rvk":["NQ 2360","NY 4760","BD 7100"],"id":"990019247190206441, 990063057720206441, 990063668050206441"}