sk0x50 commented on a change in pull request #674:
URL: https://github.com/apache/ignite-3/pull/674#discussion_r823593390



##########
File path: 
modules/runner/src/main/java/org/apache/ignite/internal/app/IgniteImpl.java
##########
@@ -332,6 +333,13 @@ public void start(@Nullable String cfg) {
             // Deploy all registered watches because all components are ready 
and have registered their listeners.
             metaStorageMgr.deployWatches();
 
+            baselineMgr.listenBaselineChange(ctx -> {
+                // TODO: Multi invoke supposed to be here 
https://issues.apache.org/jira/browse/IGNITE-16063
+                metaStorageMgr.put(new ByteArray("some key"), new byte[0]);

Review comment:
       > I could change it, if we decide to merge it not only to the feature 
branch, but to the main also
   In any case, the name of a property should be meaningful. IMHO, `some key` 
is not good enough for the feature branch as well.

##########
File path: 
modules/baseline/src/main/java/org/apache/ignite/internal/baseline/BaselineManager.java
##########
@@ -31,32 +38,29 @@
 // TODO: https://issues.apache.org/jira/browse/IGNITE-14716 Adapt concept of 
baseline topology IEP-4.
 @SuppressWarnings({"FieldCanBeLocal", "unused"})
 public class BaselineManager implements IgniteComponent {
-    /** Configuration manager in order to handle and listen baseline specific 
configuration. */
-    private final ConfigurationManager configurationMgr;
-
-    /**
-     * MetaStorage manager in order to watch private distributed baseline 
specific configuration, cause ConfigurationManger handles only
-     * public configuration.
-     */
-    private final MetaStorageManager metastorageMgr;
+    /** Cluster configuration in order to handle and listen baseline specific 
configuration. */
+    private final ClusterConfiguration clusterConfiguration;
 
     /** Cluster network service in order to retrieve information about current 
cluster nodes. */
     private final ClusterService clusterSvc;
 
+    /** Busy lock to stop synchronously. */
+    private final IgniteSpinBusyLock busyLock = new IgniteSpinBusyLock();
+
+    /** Prevents double stopping the component. */
+    AtomicBoolean stopGuard = new AtomicBoolean();

Review comment:
       I dont think, that is a good idea to tune concrete implementation for 
test purposes. In my understanding, this should be properly handled by test 
itself. Perhaps, we need to introduce something like `IgniteComponentAdapter` 
that should take care of starting/stopping a component multiple times.




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