diff --git a/src/server/src/main/java/io/cassandrareaper/storage/memory/ReplicaLockManagerWithTtl.java b/src/server/src/main/java/io/cassandrareaper/storage/memory/ReplicaLockManagerWithTtl.java
index e684a3ad0..c614a1621 100644
--- a/src/server/src/main/java/io/cassandrareaper/storage/memory/ReplicaLockManagerWithTtl.java
+++ b/src/server/src/main/java/io/cassandrareaper/storage/memory/ReplicaLockManagerWithTtl.java
@@ -32,7 +32,7 @@ public class ReplicaLockManagerWithTtl {
 
   private final ConcurrentHashMap<String, LockInfo> replicaLocks = new ConcurrentHashMap<>();
   private final ConcurrentHashMap<UUID, Set<UUID>> repairRunToSegmentLocks = new ConcurrentHashMap<>();
-  private final ConcurrentHashMap<UUID, ReentrantLock> runIdLocks = new ConcurrentHashMap<>();
+  private final Lock lock = new ReentrantLock();
 
   private final long ttlMilliSeconds;
 
@@ -47,12 +47,7 @@ private String getReplicaLockKey(String replica, UUID runId) {
     return replica + runId;
   }
 
-  private Lock getLockForRunId(UUID runId) {
-    return runIdLocks.computeIfAbsent(runId, k -> new ReentrantLock());
-  }
-
   public boolean lockRunningRepairsForNodes(UUID runId, UUID segmentId, Set<String> replicas) {
-    Lock lock = getLockForRunId(runId);
     lock.lock();
     try {
       long currentTime = System.currentTimeMillis();
@@ -81,7 +76,6 @@ public boolean lockRunningRepairsForNodes(UUID runId, UUID segmentId, Set<String
   }
 
   public boolean renewRunningRepairsForNodes(UUID runId, UUID segmentId, Set<String> replicas) {
-    Lock lock = getLockForRunId(runId);
     lock.lock();
     try {
       long currentTime = System.currentTimeMillis();
@@ -111,7 +105,6 @@ public boolean renewRunningRepairsForNodes(UUID runId, UUID segmentId, Set<Strin
   }
 
   public boolean releaseRunningRepairsForNodes(UUID runId, UUID segmentId, Set<String> replicas) {
-    Lock lock = getLockForRunId(runId);
     lock.lock();
     try {
       // Remove the lock for replicas
@@ -141,7 +134,7 @@ public Set<UUID> getLockedSegmentsForRun(UUID runId) {
 
   @VisibleForTesting
   public void cleanupExpiredLocks() {
-    runIdLocks.values().forEach(Lock::lock);
+    lock.lock();
     try {
       long currentTime = System.currentTimeMillis();
 
@@ -162,7 +155,7 @@ public void cleanupExpiredLocks() {
         return segments.isEmpty();
       });
     } finally {
-      runIdLocks.values().forEach(Lock::unlock);
+      lock.unlock();
     }
   }
 
diff --git a/src/server/src/test/java/io/cassandrareaper/acceptance/ReaperMetricsIT.java b/src/server/src/test/java/io/cassandrareaper/acceptance/ReaperMetricsIT.java
index d4f03d892..dd4db2995 100644
--- a/src/server/src/test/java/io/cassandrareaper/acceptance/ReaperMetricsIT.java
+++ b/src/server/src/test/java/io/cassandrareaper/acceptance/ReaperMetricsIT.java
@@ -67,7 +67,11 @@ public static void tearDown() {
   }
 
   public static void deleteFolderContents(String folderPath) throws IOException {
+    // Check if the path exists
     Path path = Paths.get(folderPath);
+    if (!Files.exists(path)) {
+      return;
+    }
     try (Stream<Path> walk = Files.walk(path)) {
       walk.sorted(Comparator.reverseOrder())
           .forEach(p -> {