diff --git a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/MongoSessionDataStoreTest.java b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/MongoSessionDataStoreTest.java
index 6d4b173128b7..9bc5efe2df3a 100644
--- a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/MongoSessionDataStoreTest.java
+++ b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-sessions/jetty-ee10-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee10/session/nosql/mongodb/MongoSessionDataStoreTest.java
@@ -22,6 +22,7 @@
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.session.AbstractSessionDataStoreFactory;
 import org.eclipse.jetty.session.AbstractSessionDataStoreTest;
+import org.eclipse.jetty.session.DefaultSessionCacheFactory;
 import org.eclipse.jetty.session.DefaultSessionIdManager;
 import org.eclipse.jetty.session.SessionContext;
 import org.eclipse.jetty.session.SessionData;
@@ -35,8 +36,10 @@
 import org.junit.jupiter.api.Test;
 import org.testcontainers.junit.jupiter.Testcontainers;
 
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
  * MongoSessionDataStoreTest
@@ -128,6 +131,85 @@ public boolean checkSessionPersisted(SessionData data) throws Exception
         }
     }
 
+    @Test
+    public void testBadWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        idMgr.setWorkerName("b-a-d");
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertThrows(IllegalStateException.class, () ->
+        {
+            server.start();
+        });
+    }
+
+    @Test
+    public void testGoodWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        idMgr.setWorkerName("NODE_99");
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertDoesNotThrow(() ->
+            server.start());
+    }
+
+    @Test
+    public void testDefaultWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertDoesNotThrow(() ->
+            server.start());
+    }
+
     /**
      * Test that a session stored in the legacy attribute
      * format can be read.
diff --git a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-sessions/jetty-ee9-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee9/session/nosql/mongodb/MongoSessionDataStoreTest.java b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-sessions/jetty-ee9-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee9/session/nosql/mongodb/MongoSessionDataStoreTest.java
index a8e2d86ff296..e4eced18b79c 100644
--- a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-sessions/jetty-ee9-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee9/session/nosql/mongodb/MongoSessionDataStoreTest.java
+++ b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-sessions/jetty-ee9-test-sessions-mongodb/src/test/java/org/eclipse/jetty/ee9/session/nosql/mongodb/MongoSessionDataStoreTest.java
@@ -22,6 +22,7 @@
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.session.AbstractSessionDataStoreFactory;
 import org.eclipse.jetty.session.AbstractSessionDataStoreTest;
+import org.eclipse.jetty.session.DefaultSessionCacheFactory;
 import org.eclipse.jetty.session.DefaultSessionIdManager;
 import org.eclipse.jetty.session.SessionContext;
 import org.eclipse.jetty.session.SessionData;
@@ -34,8 +35,10 @@
 import org.junit.jupiter.api.Test;
 import org.testcontainers.junit.jupiter.Testcontainers;
 
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
  * MongoSessionDataStoreTest
@@ -114,6 +117,85 @@ public boolean checkSessionPersisted(SessionData data) throws Exception
         }
     }
 
+    @Test
+    public void testBadWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        idMgr.setWorkerName("b-a-d");
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertThrows(IllegalStateException.class, () ->
+        {
+            server.start();
+        });
+    }
+
+    @Test
+    public void testGoodWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        idMgr.setWorkerName("NODE_99");
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertDoesNotThrow(() ->
+            server.start());
+    }
+
+    @Test
+    public void testDefaultWorkerName() throws Exception
+    {
+        Server server = new Server();
+        DefaultSessionIdManager idMgr = new DefaultSessionIdManager(server);
+        server.addBean(idMgr);
+
+        //create the SessionDataStore
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/ctx");
+
+        server.setHandler(context);
+        context.getSessionHandler().setSessionIdManager(idMgr);
+
+        DefaultSessionCacheFactory cacheFactory = new DefaultSessionCacheFactory();
+        cacheFactory.setSaveOnCreate(true);
+        server.addBean(cacheFactory);
+
+        SessionDataStoreFactory factory = createSessionDataStoreFactory();
+        server.addBean(factory);
+
+        assertDoesNotThrow(() ->
+            server.start());
+    }
+
     /**
      * Test that a session stored in the legacy attribute
      * format can be read.
diff --git a/jetty-integrations/jetty-nosql/src/main/java/org/eclipse/jetty/nosql/mongodb/MongoSessionDataStore.java b/jetty-integrations/jetty-nosql/src/main/java/org/eclipse/jetty/nosql/mongodb/MongoSessionDataStore.java
index 9d00ef0cdc20..f7da5e3bf987 100644
--- a/jetty-integrations/jetty-nosql/src/main/java/org/eclipse/jetty/nosql/mongodb/MongoSessionDataStore.java
+++ b/jetty-integrations/jetty-nosql/src/main/java/org/eclipse/jetty/nosql/mongodb/MongoSessionDataStore.java
@@ -16,20 +16,18 @@
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.StreamSupport;
 
 import com.mongodb.BasicDBObject;
-import com.mongodb.BasicDBObjectBuilder;
 import com.mongodb.DBObject;
 import com.mongodb.MongoException;
 import com.mongodb.client.FindIterable;
 import com.mongodb.client.MongoCollection;
 import com.mongodb.client.model.Filters;
-import com.mongodb.client.model.IndexModel;
 import com.mongodb.client.model.IndexOptions;
 import com.mongodb.client.model.Indexes;
 import com.mongodb.client.model.Projections;
@@ -159,6 +157,8 @@ public class MongoSessionDataStore extends NoSqlSessionDataStore
      */
     private DBObject _version1;
 
+    private static final Pattern _workerNamePattern = Pattern.compile("[_0-9a-zA-Z]*");
+
     /**
      * Access to MongoDB
      */
@@ -175,6 +175,22 @@ public MongoCollection<Document> getDBCollection()
         return _dbSessions;
     }
 
+    @Override
+    protected void doStart() throws Exception
+    {
+        checkWorkerName();
+        super.doStart();
+    }
+
+    private void checkWorkerName() throws IllegalStateException
+    {
+        if (_context == null || StringUtil.isEmpty(_context.getWorkerName()))
+            return;
+
+        if (!_workerNamePattern.matcher(_context.getWorkerName()).matches())
+            throw new IllegalStateException("Worker name " + _context.getWorkerName() + " does not match pattern " + _workerNamePattern.pattern());
+    }
+
     @Override
     public SessionData doLoad(String id) throws Exception
     {