[Remove] LegacyESVersion.V_7_4_* and V_7_5_* constants

CHANGELOG.md

@@ -87,6 +87,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Remove LegacyESVersion.V_7_0_* and V_7_1_* Constants ([#2768](https://https://github.com/opensearch-project/OpenSearch/pull/2768))
 - Remove LegacyESVersion.V_7_2_ and V_7_3_ Constants ([#4702](https://github.com/opensearch-project/OpenSearch/pull/4702))
 - Always auto release the flood stage block ([#4703](https://github.com/opensearch-project/OpenSearch/pull/4703))
+- Remove LegacyESVersion.V_7_4_ and V_7_5_ Constants ([#4704](https://github.com/opensearch-project/OpenSearch/pull/4704))
 
 ### Fixed
 

qa/rolling-upgrade/src/test/java/org/opensearch/upgrades/IndexingIT.java

@@ -181,18 +181,7 @@ public void testAutoIdWithOpTypeCreate() throws IOException {
                     }
                 }
 
-                if (minNodeVersion.before(LegacyESVersion.V_7_5_0)) {
-                    ResponseException e = expectThrows(ResponseException.class, () -> client().performRequest(bulk));
-                    assertEquals(400, e.getResponse().getStatusLine().getStatusCode());
-                    assertThat(e.getMessage(),
-                        // if request goes to 7.5+ node
-                        either(containsString("optype create not supported for indexing requests without explicit id until"))
-                            // if request goes to < 7.5 node
-                            .or(containsString("an id must be provided if version type or value are set")
-                            ));
-                } else {
-                    client().performRequest(bulk);
-                }
+                client().performRequest(bulk);
                 break;
             case UPGRADED:
                 client().performRequest(bulk);

server/src/internalClusterTest/java/org/opensearch/snapshots/DedicatedClusterSnapshotRestoreIT.java

@@ -37,7 +37,6 @@
 
 import org.opensearch.Version;
 import org.opensearch.action.ActionFuture;
-import org.opensearch.action.admin.cluster.snapshots.create.CreateSnapshotRequest;
 import org.opensearch.action.admin.cluster.snapshots.create.CreateSnapshotResponse;
 import org.opensearch.action.admin.cluster.snapshots.get.GetSnapshotsResponse;
 import org.opensearch.action.admin.cluster.snapshots.restore.RestoreSnapshotResponse;
@@ -47,7 +46,6 @@
 import org.opensearch.action.admin.indices.stats.ShardStats;
 import org.opensearch.action.index.IndexRequestBuilder;
 import org.opensearch.action.support.ActiveShardCount;
-import org.opensearch.action.support.PlainActionFuture;
 import org.opensearch.action.support.master.AcknowledgedResponse;
 import org.opensearch.client.Client;
 import org.opensearch.client.node.NodeClient;
@@ -1386,44 +1384,6 @@ public void testPartialSnapshotAllShardsMissing() throws Exception {
         assertThat(createSnapshotResponse.getSnapshotInfo().state(), is(SnapshotState.PARTIAL));
     }
 
-    /**
-     * Tests for the legacy snapshot path that is normally executed if the cluster contains any nodes older than
-     * {@link SnapshotsService#NO_REPO_INITIALIZE_VERSION}.
-     * Makes sure that blocking as well as non-blocking snapshot create paths execute cleanly as well as that error handling works out
-     * correctly by testing a snapshot name collision.
-     */
-    public void testCreateSnapshotLegacyPath() throws Exception {
-        final String clusterManagerNode = internalCluster().startClusterManagerOnlyNode();
-        internalCluster().startDataOnlyNode();
-        final String repoName = "test-repo";
-        createRepository(repoName, "fs");
-        createIndex("some-index");
-
-        final SnapshotsService snapshotsService = internalCluster().getClusterManagerNodeInstance(SnapshotsService.class);
-        final Snapshot snapshot1 = PlainActionFuture.get(
-            f -> snapshotsService.createSnapshotLegacy(new CreateSnapshotRequest(repoName, "snap-1"), f)
-        );
-        awaitNoMoreRunningOperations(clusterManagerNode);
-
-        final InvalidSnapshotNameException sne = expectThrows(
-            InvalidSnapshotNameException.class,
-            () -> PlainActionFuture.<SnapshotInfo, Exception>get(
-                f -> snapshotsService.executeSnapshotLegacy(new CreateSnapshotRequest(repoName, snapshot1.getSnapshotId().getName()), f)
-            )
-        );
-
-        assertThat(sne.getMessage(), containsString("snapshot with the same name already exists"));
-        final SnapshotInfo snapshot2 = PlainActionFuture.get(
-            f -> snapshotsService.executeSnapshotLegacy(new CreateSnapshotRequest(repoName, "snap-2"), f)
-        );
-        assertThat(snapshot2.state(), is(SnapshotState.SUCCESS));
-
-        final SnapshotInfo snapshot3 = PlainActionFuture.get(
-            f -> snapshotsService.executeSnapshotLegacy(new CreateSnapshotRequest(repoName, "snap-3").indices("does-not-exist-*"), f)
-        );
-        assertThat(snapshot3.state(), is(SnapshotState.SUCCESS));
-    }
-
     public void testSnapshotDeleteRelocatingPrimaryIndex() throws Exception {
         internalCluster().startClusterManagerOnlyNode();
         final List<String> dataNodes = internalCluster().startDataOnlyNodes(2);

server/src/main/java/org/opensearch/LegacyESVersion.java

@@ -48,12 +48,6 @@
  */
 public class LegacyESVersion extends Version {
 
-    public static final LegacyESVersion V_7_4_0 = new LegacyESVersion(7040099, org.apache.lucene.util.Version.LUCENE_8_2_0);
-    public static final LegacyESVersion V_7_4_1 = new LegacyESVersion(7040199, org.apache.lucene.util.Version.LUCENE_8_2_0);
-    public static final LegacyESVersion V_7_4_2 = new LegacyESVersion(7040299, org.apache.lucene.util.Version.LUCENE_8_2_0);
-    public static final LegacyESVersion V_7_5_0 = new LegacyESVersion(7050099, org.apache.lucene.util.Version.LUCENE_8_3_0);
-    public static final LegacyESVersion V_7_5_1 = new LegacyESVersion(7050199, org.apache.lucene.util.Version.LUCENE_8_3_0);
-    public static final LegacyESVersion V_7_5_2 = new LegacyESVersion(7050299, org.apache.lucene.util.Version.LUCENE_8_3_0);
     public static final LegacyESVersion V_7_6_0 = new LegacyESVersion(7060099, org.apache.lucene.util.Version.LUCENE_8_4_0);
     public static final LegacyESVersion V_7_6_1 = new LegacyESVersion(7060199, org.apache.lucene.util.Version.LUCENE_8_4_0);
     public static final LegacyESVersion V_7_6_2 = new LegacyESVersion(7060299, org.apache.lucene.util.Version.LUCENE_8_4_0);

server/src/main/java/org/opensearch/OpenSearchException.java

@@ -49,7 +49,6 @@
 import org.opensearch.index.Index;
 import org.opensearch.index.shard.ShardId;
 import org.opensearch.rest.RestStatus;
-import org.opensearch.search.SearchException;
 import org.opensearch.search.aggregations.MultiBucketConsumerService;
 import org.opensearch.transport.TcpTransport;
 
@@ -317,10 +316,6 @@ public void writeTo(StreamOutput out) throws IOException {
     public static OpenSearchException readException(StreamInput input, int id) throws IOException {
         CheckedFunction<StreamInput, ? extends OpenSearchException, IOException> opensearchException = ID_TO_SUPPLIER.get(id);
         if (opensearchException == null) {
-            if (id == 127 && input.getVersion().before(LegacyESVersion.V_7_5_0)) {
-                // was SearchContextException
-                return new SearchException(input);
-            }
             throw new IllegalStateException("unknown exception for id: " + id);
         }
         return opensearchException.apply(input);
@@ -1569,13 +1564,13 @@ private enum OpenSearchExceptionHandle {
             org.opensearch.index.seqno.RetentionLeaseInvalidRetainingSeqNoException.class,
             org.opensearch.index.seqno.RetentionLeaseInvalidRetainingSeqNoException::new,
             156,
-            LegacyESVersion.V_7_5_0
+            UNKNOWN_VERSION_ADDED
         ),
         INGEST_PROCESSOR_EXCEPTION(
             org.opensearch.ingest.IngestProcessorException.class,
             org.opensearch.ingest.IngestProcessorException::new,
             157,
-            LegacyESVersion.V_7_5_0
+            UNKNOWN_VERSION_ADDED
         ),
         PEER_RECOVERY_NOT_FOUND_EXCEPTION(
             org.opensearch.indices.recovery.PeerRecoveryNotFound.class,

server/src/main/java/org/opensearch/action/admin/cluster/node/reload/NodesReloadSecureSettingsRequest.java

@@ -114,16 +114,14 @@ boolean hasPassword() {
     @Override
     public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
-        if (out.getVersion().onOrAfter(LegacyESVersion.V_7_4_0)) {
-            if (this.secureSettingsPassword == null) {
-                out.writeOptionalBytesReference(null);
-            } else {
-                final byte[] passwordBytes = CharArrays.toUtf8Bytes(this.secureSettingsPassword.getChars());
-                try {
-                    out.writeOptionalBytesReference(new BytesArray(passwordBytes));
-                } finally {
-                    Arrays.fill(passwordBytes, (byte) 0);
-                }
+        if (this.secureSettingsPassword == null) {
+            out.writeOptionalBytesReference(null);
+        } else {
+            final byte[] passwordBytes = CharArrays.toUtf8Bytes(this.secureSettingsPassword.getChars());
+            try {
+                out.writeOptionalBytesReference(new BytesArray(passwordBytes));
+            } finally {
+                Arrays.fill(passwordBytes, (byte) 0);
             }
         }
     }

server/src/main/java/org/opensearch/action/admin/cluster/repositories/cleanup/TransportCleanupRepositoryAction.java

@@ -34,8 +34,6 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.message.ParameterizedMessage;
-import org.opensearch.LegacyESVersion;
-import org.opensearch.Version;
 import org.opensearch.action.ActionListener;
 import org.opensearch.action.ActionRunnable;
 import org.opensearch.action.StepListener;
@@ -91,8 +89,6 @@ public final class TransportCleanupRepositoryAction extends TransportClusterMana
 
     private static final Logger logger = LogManager.getLogger(TransportCleanupRepositoryAction.class);
 
-    private static final Version MIN_VERSION = LegacyESVersion.V_7_4_0;
-
     private final RepositoriesService repositoriesService;
 
     private final SnapshotsService snapshotsService;
@@ -179,17 +175,7 @@ protected void clusterManagerOperation(
         ClusterState state,
         ActionListener<CleanupRepositoryResponse> listener
     ) {
-        if (state.nodes().getMinNodeVersion().onOrAfter(MIN_VERSION)) {
-            cleanupRepo(request.name(), ActionListener.map(listener, CleanupRepositoryResponse::new));
-        } else {
-            throw new IllegalArgumentException(
-                "Repository cleanup is only supported from version ["
-                    + MIN_VERSION
-                    + "] but the oldest node version in the cluster is ["
-                    + state.nodes().getMinNodeVersion()
-                    + ']'
-            );
-        }
+        cleanupRepo(request.name(), ActionListener.map(listener, CleanupRepositoryResponse::new));
     }
 
     @Override

server/src/main/java/org/opensearch/action/admin/cluster/snapshots/create/TransportCreateSnapshotAction.java

@@ -103,18 +103,10 @@ protected void clusterManagerOperation(
         ClusterState state,
         final ActionListener<CreateSnapshotResponse> listener
     ) {
-        if (state.nodes().getMinNodeVersion().before(SnapshotsService.NO_REPO_INITIALIZE_VERSION)) {
-            if (request.waitForCompletion()) {
-                snapshotsService.executeSnapshotLegacy(request, ActionListener.map(listener, CreateSnapshotResponse::new));
-            } else {
-                snapshotsService.createSnapshotLegacy(request, ActionListener.map(listener, snapshot -> new CreateSnapshotResponse()));
-            }
+        if (request.waitForCompletion()) {
+            snapshotsService.executeSnapshot(request, ActionListener.map(listener, CreateSnapshotResponse::new));
         } else {
-            if (request.waitForCompletion()) {
-                snapshotsService.executeSnapshot(request, ActionListener.map(listener, CreateSnapshotResponse::new));
-            } else {
-                snapshotsService.createSnapshot(request, ActionListener.map(listener, snapshot -> new CreateSnapshotResponse()));
-            }
+            snapshotsService.createSnapshot(request, ActionListener.map(listener, snapshot -> new CreateSnapshotResponse()));
         }
     }
 }

server/src/main/java/org/opensearch/action/admin/cluster/snapshots/status/SnapshotStatus.java

@@ -32,7 +32,6 @@
 
 package org.opensearch.action.admin.cluster.snapshots.status;
 
-import org.opensearch.LegacyESVersion;
 import org.opensearch.cluster.SnapshotsInProgress;
 import org.opensearch.cluster.SnapshotsInProgress.State;
 import org.opensearch.common.Nullable;
@@ -92,15 +91,8 @@ public class SnapshotStatus implements ToXContentObject, Writeable {
         state = State.fromValue(in.readByte());
         shards = Collections.unmodifiableList(in.readList(SnapshotIndexShardStatus::new));
         includeGlobalState = in.readOptionalBoolean();
-        final long startTime;
-        final long time;
-        if (in.getVersion().onOrAfter(LegacyESVersion.V_7_4_0)) {
-            startTime = in.readLong();
-            time = in.readLong();
-        } else {
-            startTime = 0L;
-            time = 0L;
-        }
+        final long startTime = in.readLong();
+        final long time = in.readLong();
         updateShardStats(startTime, time);
     }
 
@@ -207,10 +199,8 @@ public void writeTo(StreamOutput out) throws IOException {
         out.writeByte(state.value());
         out.writeList(shards);
         out.writeOptionalBoolean(includeGlobalState);
-        if (out.getVersion().onOrAfter(LegacyESVersion.V_7_4_0)) {
-            out.writeLong(stats.getStartTime());
-            out.writeLong(stats.getTime());
-        }
+        out.writeLong(stats.getStartTime());
+        out.writeLong(stats.getTime());
     }
 
     @Override

server/src/main/java/org/opensearch/action/admin/indices/shards/IndicesShardStoresResponse.java

@@ -34,7 +34,6 @@
 
 import com.carrotsearch.hppc.cursors.IntObjectCursor;
 import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
-import org.opensearch.LegacyESVersion;
 import org.opensearch.OpenSearchException;
 import org.opensearch.action.ActionResponse;
 import org.opensearch.action.support.DefaultShardOperationFailedException;
@@ -247,13 +246,8 @@ public Failure(String nodeId, String index, int shardId, Throwable reason) {
         }
 
         private Failure(StreamInput in) throws IOException {
-            if (in.getVersion().before(LegacyESVersion.V_7_4_0)) {
-                nodeId = in.readString();
-            }
             readFrom(in, this);
-            if (in.getVersion().onOrAfter(LegacyESVersion.V_7_4_0)) {
-                nodeId = in.readString();
-            }
+            nodeId = in.readString();
         }
 
         public String nodeId() {
@@ -266,13 +260,8 @@ static Failure readFailure(StreamInput in) throws IOException {
 
         @Override
         public void writeTo(StreamOutput out) throws IOException {
-            if (out.getVersion().before(LegacyESVersion.V_7_4_0)) {
-                out.writeString(nodeId);
-            }
             super.writeTo(out);
-            if (out.getVersion().onOrAfter(LegacyESVersion.V_7_4_0)) {
-                out.writeString(nodeId);
-            }
+            out.writeString(nodeId);
         }
 
         @Override

server/src/main/java/org/opensearch/action/admin/indices/shrink/ResizeRequest.java

@@ -31,7 +31,6 @@
 
 package org.opensearch.action.admin.indices.shrink;
 
-import org.opensearch.LegacyESVersion;
 import org.opensearch.action.ActionRequestValidationException;
 import org.opensearch.action.IndicesRequest;
 import org.opensearch.action.admin.indices.alias.Alias;
@@ -122,9 +121,6 @@ public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
         targetIndexRequest.writeTo(out);
         out.writeString(sourceIndex);
-        if (type == ResizeType.CLONE && out.getVersion().before(LegacyESVersion.V_7_4_0)) {
-            throw new IllegalArgumentException("can't send clone request to a node that's older than " + LegacyESVersion.V_7_4_0);
-        }
         out.writeEnum(type);
         out.writeOptionalBoolean(copySettings);
     }

server/src/main/java/org/opensearch/action/index/IndexRequest.java

@@ -153,12 +153,8 @@ public IndexRequest(@Nullable ShardId shardId, StreamInput in) throws IOExceptio
         version = in.readLong();
         versionType = VersionType.fromValue(in.readByte());
         pipeline = in.readOptionalString();
-        if (in.getVersion().onOrAfter(LegacyESVersion.V_7_5_0)) {
-            finalPipeline = in.readOptionalString();
-        }
-        if (in.getVersion().onOrAfter(LegacyESVersion.V_7_5_0)) {
-            isPipelineResolved = in.readBoolean();
-        }
+        finalPipeline = in.readOptionalString();
+        isPipelineResolved = in.readBoolean();
         isRetry = in.readBoolean();
         autoGeneratedTimestamp = in.readLong();
         if (in.readBoolean()) {
@@ -639,7 +635,7 @@ public void resolveRouting(Metadata metadata) {
     }
 
     public void checkAutoIdWithOpTypeCreateSupportedByVersion(Version version) {
-        if (id == null && opType == OpType.CREATE && version.before(LegacyESVersion.V_7_5_0)) {
+        if (id == null && opType == OpType.CREATE && version.before(LegacyESVersion.fromId(7050099))) {
             throw new IllegalArgumentException(
                 "optype create not supported for indexing requests without explicit id until all nodes " + "are on version 7.5.0 or higher"
             );
@@ -671,12 +667,8 @@ private void writeBody(StreamOutput out) throws IOException {
         out.writeLong(version);
         out.writeByte(versionType.getValue());
         out.writeOptionalString(pipeline);
-        if (out.getVersion().onOrAfter(LegacyESVersion.V_7_5_0)) {
-            out.writeOptionalString(finalPipeline);
-        }
-        if (out.getVersion().onOrAfter(LegacyESVersion.V_7_5_0)) {
-            out.writeBoolean(isPipelineResolved);
-        }
+        out.writeOptionalString(finalPipeline);
+        out.writeBoolean(isPipelineResolved);
         out.writeBoolean(isRetry);
         out.writeLong(autoGeneratedTimestamp);
         if (contentType != null) {