IGNITE-24083 Remove MIN_BLT_SUPPORTING_VER (#11776)

Author: maksaska

modules/core/src/main/java/org/apache/ignite/internal/cluster/IgniteClusterImpl.java

@@ -52,7 +52,6 @@
 import org.apache.ignite.internal.GridKernalContext;
 import org.apache.ignite.internal.IgniteComponentType;
 import org.apache.ignite.internal.IgniteInternalFuture;
-import org.apache.ignite.internal.managers.discovery.DiscoCache;
 import org.apache.ignite.internal.processors.cache.DynamicCacheDescriptor;
 import org.apache.ignite.internal.processors.cluster.BaselineTopology;
 import org.apache.ignite.internal.processors.cluster.baseline.autoadjust.BaselineAutoAdjustStatus;
@@ -68,12 +67,10 @@
 import org.apache.ignite.internal.util.typedef.F;
 import org.apache.ignite.internal.util.typedef.internal.A;
 import org.apache.ignite.internal.util.typedef.internal.CU;
-import org.apache.ignite.internal.util.typedef.internal.SB;
 import org.apache.ignite.internal.util.typedef.internal.U;
 import org.apache.ignite.lang.IgniteBiTuple;
 import org.apache.ignite.lang.IgniteFuture;
 import org.apache.ignite.lang.IgnitePredicate;
-import org.apache.ignite.lang.IgniteProductVersion;
 import org.jetbrains.annotations.Nullable;
 
 import static org.apache.ignite.cluster.ClusterState.ACTIVE;
@@ -100,9 +97,6 @@ public class IgniteClusterImpl extends ClusterGroupAdapter implements IgniteClus
     /** Client reconnect future. */
     private IgniteFuture<?> reconnecFut;
 
-    /** Minimal IgniteProductVersion supporting BaselineTopology */
-    private static final IgniteProductVersion MIN_BLT_SUPPORTING_VER = IgniteProductVersion.fromString("2.4.0");
-
     /** Unique ID of cluster. Generated on start, shared by all nodes. */
     private volatile UUID id;
 
@@ -459,38 +453,10 @@ public void triggerBaselineAutoAdjust(long topVer) {
         setBaselineTopology(topVer, true);
     }
 
-    /**
-     * Verifies all nodes in current cluster topology support BaselineTopology feature so compatibilityMode flag is
-     * enabled to reset.
-     *
-     * @param discoCache
-     */
-    private void verifyBaselineTopologySupport(DiscoCache discoCache) {
-        if (discoCache.minimumServerNodeVersion().compareTo(MIN_BLT_SUPPORTING_VER) < 0) {
-            SB sb = new SB("Cluster contains nodes that don't support BaselineTopology: [");
-
-            for (ClusterNode cn : discoCache.serverNodes()) {
-                if (cn.version().compareTo(MIN_BLT_SUPPORTING_VER) < 0)
-                    sb
-                        .a("[")
-                        .a(cn.consistentId())
-                        .a(":")
-                        .a(cn.version())
-                        .a("], ");
-            }
-
-            sb.d(sb.length() - 2, sb.length());
-
-            throw new IgniteException(sb.a("]").toString());
-        }
-    }
-
     /**
      * Executes validation checks of cluster state and BaselineTopology before changing BaselineTopology to new one.
      */
     private void validateBeforeBaselineChange(Collection<? extends BaselineNode> baselineTop) {
-        verifyBaselineTopologySupport(ctx.discovery().discoCache());
-
         if (!ctx.state().clusterState().active())
             throw new IgniteException("Changing BaselineTopology on inactive cluster is not allowed.");