diff --git a/runtime/engine/src/main/java/io/aklivity/zilla/runtime/engine/internal/registry/EngineManager.java b/runtime/engine/src/main/java/io/aklivity/zilla/runtime/engine/internal/registry/EngineManager.java
index 4d8da63eff..425f9d5113 100644
--- a/runtime/engine/src/main/java/io/aklivity/zilla/runtime/engine/internal/registry/EngineManager.java
+++ b/runtime/engine/src/main/java/io/aklivity/zilla/runtime/engine/internal/registry/EngineManager.java
@@ -421,20 +421,20 @@ private void unregister(
     private final class NameResolver
     {
         private final int namespaceId;
-        private final Matcher matchName;
+        private final ThreadLocal<Matcher> matchName;
 
         private NameResolver(
             int namespaceId)
         {
             this.namespaceId = namespaceId;
-            this.matchName = NamespaceAdapter.PATTERN_NAME.matcher("");
+            this.matchName = ThreadLocal.withInitial(() -> NamespaceAdapter.PATTERN_NAME.matcher(""));
         }
 
         private long resolve(
             String name)
         {
             long id = 0L;
-
+            Matcher matchName = this.matchName.get();
             if (name != null && matchName.reset(name).matches())
             {
                 String ns = matchName.group("namespace");
@@ -445,7 +445,6 @@ private long resolve(
 
                 id = NamespacedId.id(nsid, nid);
             }
-
             return id;
         }