diff --git a/backend/src/main/java/com/bakdata/conquery/models/events/BucketManager.java b/backend/src/main/java/com/bakdata/conquery/models/events/BucketManager.java
index 2135951817..fe91ec2ba8 100644
--- a/backend/src/main/java/com/bakdata/conquery/models/events/BucketManager.java
+++ b/backend/src/main/java/com/bakdata/conquery/models/events/BucketManager.java
@@ -18,10 +18,7 @@
 import com.bakdata.conquery.models.datasets.concepts.Connector;
 import com.bakdata.conquery.models.datasets.concepts.tree.ConceptTreeConnector;
 import com.bakdata.conquery.models.datasets.concepts.tree.TreeConcept;
-import com.bakdata.conquery.models.identifiable.IdMutex;
-import com.bakdata.conquery.models.identifiable.IdMutex.Locked;
 import com.bakdata.conquery.models.identifiable.ids.specific.CBlockId;
-import com.bakdata.conquery.models.identifiable.ids.specific.ConnectorId;
 import com.bakdata.conquery.models.jobs.CalculateCBlocksJob;
 import com.bakdata.conquery.models.jobs.JobManager;
 import com.bakdata.conquery.models.query.entity.Entity;
@@ -47,7 +44,6 @@
 @RequiredArgsConstructor
 public class BucketManager {
 
-	private final IdMutex<ConnectorId> cBlockLocks = new IdMutex<>();
 	private final JobManager jobManager;
 	private final WorkerStorage storage;
 
@@ -123,9 +119,6 @@ private static void registerCBlock(CBlock cBlock, Map<Connector, Int2ObjectMap<M
 						.put(cBlock.getBucket(), cBlock);
 	}
 
-	public Locked acquireLock(Connector connector) {
-		return cBlockLocks.acquire(connector.getId());
-	}
 
 	@SneakyThrows
 	public void fullUpdate() {
diff --git a/backend/src/main/java/com/bakdata/conquery/models/jobs/CalculateCBlocksJob.java b/backend/src/main/java/com/bakdata/conquery/models/jobs/CalculateCBlocksJob.java
index a401694d00..afad884d47 100644
--- a/backend/src/main/java/com/bakdata/conquery/models/jobs/CalculateCBlocksJob.java
+++ b/backend/src/main/java/com/bakdata/conquery/models/jobs/CalculateCBlocksJob.java
@@ -10,7 +10,6 @@
 import com.bakdata.conquery.models.events.Bucket;
 import com.bakdata.conquery.models.events.BucketManager;
 import com.bakdata.conquery.models.events.CBlock;
-import com.bakdata.conquery.models.identifiable.IdMutex;
 import com.bakdata.conquery.models.identifiable.ids.specific.CBlockId;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -47,7 +46,7 @@ public void addCBlock(Bucket bucket, ConceptTreeConnector connector) {
 
 	@Override
 	public void execute() throws Exception {
-		if(infos.isEmpty()){
+		if (infos.isEmpty()) {
 			return;
 		}
 
@@ -56,10 +55,10 @@ public void execute() throws Exception {
 		final ListeningExecutorService executorService = MoreExecutors.listeningDecorator(this.executorService);
 
 		final List<? extends ListenableFuture<?>> futures = infos.stream()
-				.map(this::createInformationProcessor)
-				.map(executorService::submit)
-				.peek(f -> f.addListener(this::incrementProgressReporter, MoreExecutors.directExecutor()))
-				.collect(Collectors.toList());
+																 .map(this::createInformationProcessor)
+																 .map(executorService::submit)
+																 .peek(f -> f.addListener(this::incrementProgressReporter, MoreExecutors.directExecutor()))
+																 .collect(Collectors.toList());
 
 		Futures.allAsList(futures).get();
 	}
@@ -98,17 +97,15 @@ private static class CalculationInformationProcessor implements Runnable {
 		@Override
 		public void run() {
 			try {
-				try(IdMutex.Locked ignored = bucketManager.acquireLock(info.connector)) {
-					if (bucketManager.hasCBlock(info.getCBlockId())) {
-						log.trace("Skipping calculation of CBlock[{}] because its already present in the BucketManager.", info.getCBlockId());
-						return;
-					}
+				if (bucketManager.hasCBlock(info.getCBlockId())) {
+					log.trace("Skipping calculation of CBlock[{}] because its already present in the BucketManager.", info.getCBlockId());
+					return;
+				}
 
-					CBlock cBlock = CBlock.createCBlock(info.getConnector(), info.getBucket(), bucketManager.getEntityBucketSize());
+				CBlock cBlock = CBlock.createCBlock(info.getConnector(), info.getBucket(), bucketManager.getEntityBucketSize());
 
-					bucketManager.addCalculatedCBlock(cBlock);
-					storage.addCBlock(cBlock);
-				}
+				bucketManager.addCalculatedCBlock(cBlock);
+				storage.addCBlock(cBlock);
 			}
 			catch (Exception e) {
 				throw new RuntimeException(