From 6d3f8e70a1aa3fc89d6ce76e5f49b4c286f7549b Mon Sep 17 00:00:00 2001
From: NSAmelchev <namelchev@apache.org>
Date: Fri, 9 Oct 2026 21:00:34 +0300
Subject: [PATCH] IGNITE-29132 Fix task execution on an inactive cluster with
 security enabled

---
 .../processors/task/GridTaskProcessor.java    | 25 +++++--------------
 .../security/TaskNameResolutionTest.java      |  2 ++
 2 files changed, 8 insertions(+), 19 deletions(-)

diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/task/GridTaskProcessor.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/task/GridTaskProcessor.java
index 4386f8313e3c3..f87ce69423119 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/task/GridTaskProcessor.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/task/GridTaskProcessor.java
@@ -27,7 +27,6 @@
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.TimeUnit;
 import org.apache.ignite.IgniteCheckedException;
@@ -153,9 +152,6 @@ public class GridTaskProcessor extends GridProcessorAdapter implements IgniteCha
     /** Internal metadata cache. */
     private volatile IgniteInternalCache<GridTaskNameHashKey, String> tasksMetaCache;
 
-    /** */
-    private final CountDownLatch startLatch = new CountDownLatch(1);
-
     /**
      * {@code true} if local node has persistent region in configuration and is not a client.
      */
@@ -210,16 +206,6 @@ public GridTaskProcessor(GridKernalContext ctx) {
             log.debug("Started task processor.");
     }
 
-    /** {@inheritDoc} */
-    @Override public void onKernalStart(boolean active) throws IgniteCheckedException {
-        if (!active)
-            return;
-
-        tasksMetaCache = ctx.security().enabled() ? ctx.cache().utilityCache() : null;
-
-        startLatch.countDown();
-    }
-
     /** {@inheritDoc} */
     @Override public void onDisconnected(IgniteFuture<?> reconnectFut) throws IgniteCheckedException {
         IgniteClientDisconnectedCheckedException err = disconnectedError(reconnectFut);
@@ -271,8 +257,6 @@ private IgniteClientDisconnectedCheckedException disconnectedError(@Nullable Ign
                 Thread.currentThread().interrupt();
         }
 
-        startLatch.countDown();
-
         int size = tasks.size();
 
         if (size > 0) {
@@ -342,8 +326,8 @@ private IgniteClientDisconnectedCheckedException disconnectedError(@Nullable Ign
     private IgniteInternalCache<GridTaskNameHashKey, String> taskMetaCache() {
         assert ctx.security().enabled();
 
-        if (tasksMetaCache == null)
-            U.awaitQuiet(startLatch);
+        if (tasksMetaCache == null && ctx.state().publicApiActiveState(false))
+            tasksMetaCache = ctx.cache().utilityCache();
 
         return tasksMetaCache;
     }
@@ -865,6 +849,9 @@ private void saveTaskMetadata(String taskName) throws IgniteCheckedException {
 
         IgniteInternalCache<GridTaskNameHashKey, String> tasksMetaCache = taskMetaCache();
 
+        if (tasksMetaCache == null)
+            return;
+
         String existingName = tasksMetaCache.get(key);
 
         if (existingName == null)
@@ -1178,7 +1165,7 @@ public boolean cancel(IgniteUuid sesId) {
 
     /** {@inheritDoc} */
     @Override public void onActivate(GridKernalContext kctx) throws IgniteCheckedException {
-        onKernalStart(true);
+        // No-op.
     }
 
     /** {@inheritDoc} */
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/security/TaskNameResolutionTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/security/TaskNameResolutionTest.java
index 786367f29f773..2d1315c8bb6ca 100644
--- a/modules/core/src/test/java/org/apache/ignite/internal/processors/security/TaskNameResolutionTest.java
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/security/TaskNameResolutionTest.java
@@ -39,6 +39,8 @@ public void testResolveTaskNameOnInactiveCluster() throws Exception {
 
         ignite.cluster().state(ClusterState.INACTIVE);
 
+        ignite.compute().withName(TASK_NAME).run(() -> {});
+
         assertNull(grid(1).context().task().resolveTaskName(TASK_NAME.hashCode()));
 
         ignite.cluster().state(ClusterState.ACTIVE);