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ifesdjeen pushed a commit to branch trunk
in repository https://gitbox.apache.org/repos/asf/cassandra.git
The following commit(s) were added to refs/heads/trunk by this push:
new 7623e4678b The result of applying a metadata snapshot via
ForceSnapshot should return the correct set of modified keys
7623e4678b is described below
commit 7623e4678b8ef131434f1de3522c6425c092dff9
Author: Alex Petrov <[email protected]>
AuthorDate: Mon Mar 25 10:25:50 2024 +0100
The result of applying a metadata snapshot via ForceSnapshot should return
the correct set of modified keys
Patch by Alex Petrov; reviewed by Marcus Eriksson for CASSANDRA-19128.
---
.../org/apache/cassandra/tcm/MetadataKeys.java | 47 +++++
.../cassandra/tcm/ownership/PlacementDeltas.java | 22 +++
.../tcm/transformations/CustomTransformation.java | 44 +++++
.../tcm/transformations/ForceSnapshot.java | 4 +-
.../cassandra/tcm/transformations/PrepareMove.java | 6 +
.../test/log/ClusterMetadataTestHelper.java | 3 +-
.../distributed/test/log/MetadataKeysTest.java | 220 +++++++++++++++++++++
.../apache/cassandra/harry/gen/EntropySource.java | 5 +-
.../org/apache/cassandra/harry/gen/Generators.java | 42 +++-
.../org/apache/cassandra/tcm/log/LocalLogTest.java | 10 +-
10 files changed, 388 insertions(+), 15 deletions(-)
diff --git a/src/java/org/apache/cassandra/tcm/MetadataKeys.java
b/src/java/org/apache/cassandra/tcm/MetadataKeys.java
index fda509186b..8028007815 100644
--- a/src/java/org/apache/cassandra/tcm/MetadataKeys.java
+++ b/src/java/org/apache/cassandra/tcm/MetadataKeys.java
@@ -18,10 +18,17 @@
package org.apache.cassandra.tcm;
+import java.util.HashSet;
import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Function;
import com.google.common.collect.ImmutableSet;
+import org.apache.cassandra.tcm.extensions.ExtensionKey;
+import org.apache.cassandra.tcm.extensions.ExtensionValue;
+
public class MetadataKeys
{
public static final String CORE_NS =
MetadataKeys.class.getPackage().getName().toLowerCase(Locale.ROOT);
@@ -52,4 +59,44 @@ public class MetadataKeys
return new MetadataKey(b.toString());
}
+ public static ImmutableSet<MetadataKey> diffKeys(ClusterMetadata before,
ClusterMetadata after)
+ {
+ ImmutableSet.Builder<MetadataKey> builder = new
ImmutableSet.Builder<>();
+ diffKeys(before, after, builder);
+ return builder.build();
+ }
+
+ private static void diffKeys(ClusterMetadata before, ClusterMetadata
after, ImmutableSet.Builder<MetadataKey> builder)
+ {
+ checkKey(before, after, builder, cm -> cm.schema, MetadataKeys.SCHEMA);
+ checkKey(before, after, builder, cm -> cm.directory,
MetadataKeys.NODE_DIRECTORY);
+ checkKey(before, after, builder, cm -> cm.tokenMap,
MetadataKeys.TOKEN_MAP);
+ checkKey(before, after, builder, cm -> cm.placements,
MetadataKeys.DATA_PLACEMENTS);
+ checkKey(before, after, builder, cm -> cm.lockedRanges,
MetadataKeys.LOCKED_RANGES);
+ checkKey(before, after, builder, cm -> cm.inProgressSequences,
MetadataKeys.IN_PROGRESS_SEQUENCES);
+
+ Set<ExtensionKey<?,?>> added = new
HashSet<>(after.extensions.keySet());
+ for (Map.Entry<ExtensionKey<?, ?>, ExtensionValue<?>> entry :
before.extensions.entrySet())
+ {
+ ExtensionKey<?, ?> key = entry.getKey();
+ added.remove(key);
+
+ if (after.extensions.containsKey(key))
+ checkKey(before, after, builder, cm -> cm.extensions.get(key),
key);
+ else
+ builder.add(key);
+ }
+
+ for (ExtensionKey<?, ?> key : added)
+ builder.add(key);
+ }
+
+ private static void checkKey(ClusterMetadata before, ClusterMetadata
after, ImmutableSet.Builder<MetadataKey> builder, Function<ClusterMetadata,
MetadataValue<?>> extract, MetadataKey key)
+ {
+ MetadataValue<?> vBefore = extract.apply(before);
+ MetadataValue<?> vAfter = extract.apply(after);
+
+ if (!vBefore.equals(vAfter))
+ builder.add(key);
+ }
}
diff --git a/src/java/org/apache/cassandra/tcm/ownership/PlacementDeltas.java
b/src/java/org/apache/cassandra/tcm/ownership/PlacementDeltas.java
index 6b5b817984..6ba80a854b 100644
--- a/src/java/org/apache/cassandra/tcm/ownership/PlacementDeltas.java
+++ b/src/java/org/apache/cassandra/tcm/ownership/PlacementDeltas.java
@@ -77,6 +77,28 @@ public class PlacementDeltas extends
ReplicationMap<PlacementDeltas.PlacementDel
return builder.build();
}
+ @Override
+ public boolean isEmpty()
+ {
+ if (super.isEmpty())
+ return true;
+
+ for (Map.Entry<ReplicationParams, PlacementDelta> e : map.entrySet())
+ {
+ if (!e.getValue().reads.removals.isEmpty())
+ return false;
+ if (!e.getValue().reads.additions.isEmpty())
+ return false;
+
+ if (!e.getValue().writes.removals.isEmpty())
+ return false;
+ if (!e.getValue().writes.additions.isEmpty())
+ return false;
+ }
+
+ return true;
+ }
+
public static PlacementDeltas empty()
{
return EMPTY;
diff --git
a/src/java/org/apache/cassandra/tcm/transformations/CustomTransformation.java
b/src/java/org/apache/cassandra/tcm/transformations/CustomTransformation.java
index a1eb9ab5cd..bcacba652d 100644
---
a/src/java/org/apache/cassandra/tcm/transformations/CustomTransformation.java
+++
b/src/java/org/apache/cassandra/tcm/transformations/CustomTransformation.java
@@ -44,6 +44,7 @@ public class CustomTransformation implements Transformation
{
registerExtension(PokeString.NAME, new
PokeString.TransformSerializer());
registerExtension(PokeInt.NAME, new PokeInt.TransformSerializer());
+ registerExtension(ClearInt.NAME, new ClearInt.TransformSerializer());
}
public CustomTransformation(String extension, Transformation child)
@@ -291,4 +292,47 @@ public class CustomTransformation implements Transformation
}
}
}
+
+ public static class ClearInt implements Transformation
+ {
+
+ public static final String NAME = ClearInt.class.getName();
+
+ public static final ClearInt instance = new ClearInt();
+
+ private ClearInt() {}
+ public Kind kind()
+ {
+ return Kind.CUSTOM;
+ }
+
+ public Result execute(ClusterMetadata prev)
+ {
+ return
Transformation.success(prev.transformer().without(PokeInt.METADATA_KEY),
LockedRanges.AffectedRanges.EMPTY);
+ }
+
+ public String toString()
+ {
+ return "clearInt";
+ }
+
+ public static class TransformSerializer implements
AsymmetricMetadataSerializer<Transformation, ClearInt>
+ {
+ private TransformSerializer() {}
+
+ public void serialize(Transformation t, DataOutputPlus out,
Version version) throws IOException
+ {
+ }
+
+ public ClearInt deserialize(DataInputPlus in, Version version)
throws IOException
+ {
+ return instance;
+ }
+
+ public long serializedSize(Transformation t, Version version)
+ {
+ return 0;
+ }
+ }
+ }
}
\ No newline at end of file
diff --git
a/src/java/org/apache/cassandra/tcm/transformations/ForceSnapshot.java
b/src/java/org/apache/cassandra/tcm/transformations/ForceSnapshot.java
index be9fde80db..b0987cd535 100644
--- a/src/java/org/apache/cassandra/tcm/transformations/ForceSnapshot.java
+++ b/src/java/org/apache/cassandra/tcm/transformations/ForceSnapshot.java
@@ -49,9 +49,9 @@ public class ForceSnapshot implements Transformation
return Kind.FORCE_SNAPSHOT;
}
- public Result execute(ClusterMetadata metadata)
+ public Result execute(ClusterMetadata prev)
{
- return new Success(baseState, LockedRanges.AffectedRanges.EMPTY,
MetadataKeys.CORE_METADATA);
+ return new Success(baseState, LockedRanges.AffectedRanges.EMPTY,
MetadataKeys.diffKeys(prev, baseState));
}
public String toString()
diff --git a/src/java/org/apache/cassandra/tcm/transformations/PrepareMove.java
b/src/java/org/apache/cassandra/tcm/transformations/PrepareMove.java
index 71fc3bf667..fdd82c3a6c 100644
--- a/src/java/org/apache/cassandra/tcm/transformations/PrepareMove.java
+++ b/src/java/org/apache/cassandra/tcm/transformations/PrepareMove.java
@@ -67,6 +67,12 @@ public class PrepareMove implements Transformation
this.streamData = streamData;
}
+ @VisibleForTesting
+ public NodeId nodeId()
+ {
+ return nodeId;
+ }
+
@Override
public String toString()
{
diff --git
a/test/distributed/org/apache/cassandra/distributed/test/log/ClusterMetadataTestHelper.java
b/test/distributed/org/apache/cassandra/distributed/test/log/ClusterMetadataTestHelper.java
index 684033d534..52126cd7ec 100644
---
a/test/distributed/org/apache/cassandra/distributed/test/log/ClusterMetadataTestHelper.java
+++
b/test/distributed/org/apache/cassandra/distributed/test/log/ClusterMetadataTestHelper.java
@@ -87,7 +87,6 @@ import org.apache.cassandra.tcm.transformations.Register;
import org.apache.cassandra.tcm.transformations.cms.AdvanceCMSReconfiguration;
import org.apache.cassandra.tcm.transformations.cms.PrepareCMSReconfiguration;
import org.apache.cassandra.utils.ByteBufferUtil;
-import org.apache.cassandra.tcm.transformations.cms.Initialize;
import org.apache.cassandra.utils.FBUtilities;
import org.apache.cassandra.utils.Throwables;
@@ -125,6 +124,7 @@ public class ClusterMetadataTestHelper
{
ClusterMetadata current = new
ClusterMetadata(DatabaseDescriptor.getPartitioner());
LocalLog log = LocalLog.logSpec()
+ .withInitialState(current)
.createLog();
ResettableClusterMetadataService service = new
ResettableClusterMetadataService(new UniformRangePlacement(),
MetadataSnapshots.NO_OP,
@@ -134,7 +134,6 @@ public class ClusterMetadataTestHelper
true);
log.readyUnchecked();
log.bootstrap(FBUtilities.getBroadcastAddressAndPort());
- service.commit(new Initialize(current));
QueryProcessor.registerStatementInvalidatingListener();
service.mark();
return service;
diff --git
a/test/distributed/org/apache/cassandra/distributed/test/log/MetadataKeysTest.java
b/test/distributed/org/apache/cassandra/distributed/test/log/MetadataKeysTest.java
new file mode 100644
index 0000000000..04acd2369a
--- /dev/null
+++
b/test/distributed/org/apache/cassandra/distributed/test/log/MetadataKeysTest.java
@@ -0,0 +1,220 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.cassandra.distributed.test.log;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import org.apache.cassandra.config.DatabaseDescriptor;
+import org.apache.cassandra.dht.Murmur3Partitioner;
+import org.apache.cassandra.harry.gen.EntropySource;
+import org.apache.cassandra.harry.gen.Generator;
+import org.apache.cassandra.harry.gen.Generators;
+import org.apache.cassandra.harry.gen.rng.JdkRandomEntropySource;
+import org.apache.cassandra.harry.sut.TokenPlacementModel;
+import org.apache.cassandra.locator.InetAddressAndPort;
+import org.apache.cassandra.tcm.AtomicLongBackedProcessor;
+import org.apache.cassandra.tcm.ClusterMetadata;
+import org.apache.cassandra.tcm.ClusterMetadataService;
+import org.apache.cassandra.tcm.MetadataKey;
+import org.apache.cassandra.tcm.MetadataKeys;
+import org.apache.cassandra.tcm.Transformation;
+import org.apache.cassandra.tcm.membership.Location;
+import org.apache.cassandra.tcm.membership.NodeAddresses;
+import org.apache.cassandra.tcm.membership.NodeId;
+import org.apache.cassandra.tcm.membership.NodeState;
+import org.apache.cassandra.tcm.membership.NodeVersion;
+import org.apache.cassandra.tcm.ownership.PlacementProvider;
+import org.apache.cassandra.tcm.sequences.BootstrapAndJoin;
+import org.apache.cassandra.tcm.sequences.LeaveStreams;
+import org.apache.cassandra.tcm.sequences.Move;
+import org.apache.cassandra.tcm.sequences.UnbootstrapAndLeave;
+import org.apache.cassandra.tcm.transformations.CustomTransformation;
+import org.apache.cassandra.tcm.transformations.PrepareJoin;
+import org.apache.cassandra.tcm.transformations.PrepareLeave;
+import org.apache.cassandra.tcm.transformations.PrepareMove;
+import org.apache.cassandra.tcm.transformations.Register;
+
+public class MetadataKeysTest extends CMSTestBase
+{
+ static
+ {
+ DatabaseDescriptor.setPartitionerUnsafe(Murmur3Partitioner.instance);
+ }
+
+ @Test
+ public void metadataKeysChangeTest() throws Exception
+ {
+ Generator<Register> genRegister = new
Generators.InetAddrAndPortGenerator()
+ .zip(Generators.pick("datacenter1",
"datacenter2"),
+ Generators.pick("rack1", "rack2"),
+ (InetAddressAndPort addr, String dc,
String rack) -> {
+ return new Register(new
NodeAddresses(addr),
+ new
Location(dc, rack),
+
NodeVersion.CURRENT);
+ });
+ EntropySource rng = new JdkRandomEntropySource(1l);
+
+ try (CMSTestBase.CMSSut sut = new
CMSTestBase.CMSSut(AtomicLongBackedProcessor::new, false, new
TokenPlacementModel.SimpleReplicationFactor(3)))
+ {
+ Register register = genRegister.generate(rng);
+ checkDiff(sut.service, register);
+ sut.service.commit(register);
+
+ {
+ PrepareJoin prepareJoin =
prepareJoinGenerator(sut.service.metadata(),
sut.service.placementProvider()).generate(rng);
+ checkDiff(sut.service, prepareJoin);
+ sut.service.commit(prepareJoin);
+
+ BootstrapAndJoin bootstrapAndJoin = (BootstrapAndJoin)
sut.service.metadata().inProgressSequences.get(prepareJoin.nodeId());
+ checkDiff(sut.service, bootstrapAndJoin.startJoin);
+ sut.service.commit(bootstrapAndJoin.startJoin);
+
+ checkDiff(sut.service, bootstrapAndJoin.midJoin);
+ sut.service.commit(bootstrapAndJoin.midJoin);
+
+ checkDiff(sut.service, bootstrapAndJoin.finishJoin);
+ sut.service.commit(bootstrapAndJoin.finishJoin);
+ }
+
+ {
+ PrepareMove prepareMove =
prepareMoveGenerator(sut.service.metadata(),
sut.service.placementProvider()).generate(rng);
+ checkDiff(sut.service, prepareMove);
+ sut.service.commit(prepareMove);
+
+ Move bootstrapAndMove = (Move)
sut.service.metadata().inProgressSequences.get(prepareMove.nodeId());
+ checkDiff(sut.service, bootstrapAndMove.startMove);
+ sut.service.commit(bootstrapAndMove.startMove);
+
+ checkDiff(sut.service, bootstrapAndMove.midMove);
+ sut.service.commit(bootstrapAndMove.midMove);
+
+ checkDiff(sut.service, bootstrapAndMove.finishMove);
+ sut.service.commit(bootstrapAndMove.finishMove);
+ }
+
+ {
+ PrepareLeave prepareLeave =
prepareLeaveGenerator(sut.service.metadata(),
sut.service.placementProvider()).generate(rng);
+ checkDiff(sut.service, prepareLeave);
+ sut.service.commit(prepareLeave);
+
+ UnbootstrapAndLeave bootstrapAndLeave = (UnbootstrapAndLeave)
sut.service.metadata().inProgressSequences.get(prepareLeave.nodeId());
+ checkDiff(sut.service, bootstrapAndLeave.startLeave);
+ sut.service.commit(bootstrapAndLeave.startLeave);
+
+ checkDiff(sut.service, bootstrapAndLeave.midLeave);
+ sut.service.commit(bootstrapAndLeave.midLeave);
+
+ checkDiff(sut.service, bootstrapAndLeave.finishLeave);
+ sut.service.commit(bootstrapAndLeave.finishLeave);
+ }
+ }
+ }
+
+ @Test
+ public void metadataKeysExtensionTest() throws Exception
+ {
+ try (CMSTestBase.CMSSut sut = new
CMSTestBase.CMSSut(AtomicLongBackedProcessor::new, false, new
TokenPlacementModel.SimpleReplicationFactor(3)))
+ {
+ Transformation transformation;
+ transformation = new CustomTransformation.PokeInt(1);
+ checkDiff(sut.service, transformation,
Collections.singleton(CustomTransformation.PokeInt.METADATA_KEY));
+ sut.service.commit(transformation);
+
+ transformation = new CustomTransformation.PokeInt(2);
+ checkDiff(sut.service, transformation,
Collections.singleton(CustomTransformation.PokeInt.METADATA_KEY));
+ sut.service.commit(transformation);
+
+ transformation = CustomTransformation.ClearInt.instance;
+ checkDiff(sut.service, transformation,
Collections.singleton(CustomTransformation.PokeInt.METADATA_KEY));
+ sut.service.commit(transformation);
+ }
+ }
+
+ private static void checkDiff(ClusterMetadataService cms, Transformation
transformation)
+ {
+ ClusterMetadata before = cms.metadata();
+ Transformation.Result result = transformation.execute(before);
+ ClusterMetadata after = result.success().metadata;
+ Assert.assertEquals(result.success().affectedMetadata,
MetadataKeys.diffKeys(before, after));
+ }
+
+ private static void checkDiff(ClusterMetadataService cms, Transformation
transformation, Set<MetadataKey> expected)
+ {
+ ClusterMetadata before = cms.metadata();
+ Transformation.Result result = transformation.execute(before);
+ ClusterMetadata after = result.success().metadata;
+ Assert.assertEquals(expected, result.success().affectedMetadata);
+ Assert.assertEquals(result.success().affectedMetadata,
MetadataKeys.diffKeys(before, after));
+ }
+
+ public Generator<PrepareJoin> prepareJoinGenerator(ClusterMetadata
metadata, PlacementProvider placementProvider)
+ {
+ List<NodeId> pickFrom = new ArrayList<>();
+ for (Map.Entry<NodeId, NodeState> e :
metadata.directory.states.entrySet())
+ {
+ if (e.getValue().equals(NodeState.REGISTERED))
+ pickFrom.add(e.getKey());
+ }
+
+ return Generators.pick(pickFrom).zip(new
LongGenerator().map(Murmur3Partitioner.LongToken::new),
+ (node, token) -> new
PrepareJoin(node, Collections.singleton(token), placementProvider, true,
false));
+ }
+
+ public Generator<PrepareLeave> prepareLeaveGenerator(ClusterMetadata
metadata, PlacementProvider placementProvider)
+ {
+ List<NodeId> pickFrom = new ArrayList<>();
+ for (Map.Entry<NodeId, NodeState> e :
metadata.directory.states.entrySet())
+ {
+ if (e.getValue().equals(NodeState.JOINED))
+ pickFrom.add(e.getKey());
+ }
+
+ return Generators.pick(pickFrom).map((node) -> new PrepareLeave(node,
true, placementProvider, LeaveStreams.Kind.UNBOOTSTRAP));
+ }
+
+ public Generator<PrepareMove> prepareMoveGenerator(ClusterMetadata
metadata, PlacementProvider placementProvider)
+ {
+ List<NodeId> pickFrom = new ArrayList<>();
+ for (Map.Entry<NodeId, NodeState> e :
metadata.directory.states.entrySet())
+ {
+ if (e.getValue().equals(NodeState.JOINED))
+ pickFrom.add(e.getKey());
+ }
+
+ return Generators.pick(pickFrom).zip(new
LongGenerator().map(Murmur3Partitioner.LongToken::new),
+ (node, token) -> new
PrepareMove(node, Collections.singleton(token), placementProvider, false));
+ }
+
+ private static final class LongGenerator implements Generator<Long>
+ {
+
+ @Override
+ public Long generate(EntropySource rng)
+ {
+ return rng.next();
+ }
+ }
+}
diff --git a/test/harry/main/org/apache/cassandra/harry/gen/EntropySource.java
b/test/harry/main/org/apache/cassandra/harry/gen/EntropySource.java
index bda37a9070..d6087893bc 100644
--- a/test/harry/main/org/apache/cassandra/harry/gen/EntropySource.java
+++ b/test/harry/main/org/apache/cassandra/harry/gen/EntropySource.java
@@ -19,7 +19,8 @@
package org.apache.cassandra.harry.gen;
import com.google.common.annotations.VisibleForTesting;
-import org.apache.cassandra.harry.gen.rng.PcgRSUFast;
+
+import org.apache.cassandra.harry.gen.rng.JdkRandomEntropySource;
/**
* Random generator interface that offers:
@@ -89,7 +90,7 @@ public interface EntropySource
static EntropySource forTests(long seed)
{
System.out.println("Seed: " + seed);
- return new PcgRSUFast(seed, 1);
+ return new JdkRandomEntropySource(seed);
}
}
diff --git a/test/harry/main/org/apache/cassandra/harry/gen/Generators.java
b/test/harry/main/org/apache/cassandra/harry/gen/Generators.java
index 6b46ea079d..ed966a96ed 100644
--- a/test/harry/main/org/apache/cassandra/harry/gen/Generators.java
+++ b/test/harry/main/org/apache/cassandra/harry/gen/Generators.java
@@ -18,6 +18,8 @@
package org.apache.cassandra.harry.gen;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
@@ -25,13 +27,47 @@ import java.util.List;
import java.util.Set;
import java.util.function.Supplier;
+import org.apache.cassandra.locator.InetAddressAndPort;
+
public class Generators
{
+ public static class InetAddrAndPortGenerator implements
Generator<InetAddressAndPort>
+ {
+ private final int port;
+ public InetAddrAndPortGenerator()
+ {
+ this(9042);
+ }
+
+ public InetAddrAndPortGenerator(int port)
+ {
+ this.port = port;
+ }
+
+ @Override
+ public InetAddressAndPort generate(EntropySource rng)
+ {
+ int orig = rng.nextInt();
+ byte[] bytes = new byte[]{ (byte) (orig & 0xff),
+ (byte) (orig << 8 & 0xff),
+ (byte) (orig << 16 & 0xff),
+ (byte) (orig << 24 & 0xff) };
+ try
+ {
+ return
InetAddressAndPort.getByAddressOverrideDefaults(InetAddress.getByAddress(bytes),
bytes, port);
+ }
+ catch (UnknownHostException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+ }
+
public static <T> Generator<T> pick(List<T> ts)
{
- return (rng) -> {
- return ts.get(rng.nextInt(0, ts.size() - 1));
- };
+ if (ts.isEmpty())
+ throw new IllegalStateException("Can't pick from an empty list");
+ return (rng) -> ts.get(rng.nextInt(0, ts.size()));
}
public static <T> Generator<T> pick(T... ts)
diff --git a/test/unit/org/apache/cassandra/tcm/log/LocalLogTest.java
b/test/unit/org/apache/cassandra/tcm/log/LocalLogTest.java
index bcbe663736..816c491f1a 100644
--- a/test/unit/org/apache/cassandra/tcm/log/LocalLogTest.java
+++ b/test/unit/org/apache/cassandra/tcm/log/LocalLogTest.java
@@ -37,8 +37,6 @@ import org.junit.Test;
import org.apache.cassandra.concurrent.ExecutorPlus;
import org.apache.cassandra.config.DatabaseDescriptor;
-import org.apache.cassandra.db.marshal.IntegerType;
-import org.apache.cassandra.dht.LocalPartitioner;
import org.apache.cassandra.dht.Murmur3Partitioner;
import org.apache.cassandra.tcm.ClusterMetadata;
import org.apache.cassandra.tcm.Epoch;
@@ -105,7 +103,7 @@ public class LocalLogTest
entries.add(new Entry(Entry.Id.NONE,
Epoch.create(11),
- new ForceSnapshot(new ClusterMetadata(new
LocalPartitioner(IntegerType.instance)).forceEpoch(Epoch.create(11)))));
+ new ForceSnapshot(new
ClusterMetadata(Murmur3Partitioner.instance).forceEpoch(Epoch.create(11)))));
Collections.shuffle(entries);
log.append(entries);
@@ -133,13 +131,13 @@ public class LocalLogTest
entries.add(new Entry(Entry.Id.NONE,
Epoch.create(11),
- new ForceSnapshot(new ClusterMetadata(new
LocalPartitioner(IntegerType.instance)).forceEpoch(Epoch.create(11)))));
+ new ForceSnapshot(new
ClusterMetadata(Murmur3Partitioner.instance).forceEpoch(Epoch.create(11)))));
entries.add(new Entry(Entry.Id.NONE,
Epoch.create(21),
- new ForceSnapshot(new ClusterMetadata(new
LocalPartitioner(IntegerType.instance)).forceEpoch(Epoch.create(21)))));
+ new ForceSnapshot(new
ClusterMetadata(Murmur3Partitioner.instance).forceEpoch(Epoch.create(21)))));
entries.add(new Entry(Entry.Id.NONE,
Epoch.create(31),
- new ForceSnapshot(new ClusterMetadata(new
LocalPartitioner(IntegerType.instance)).forceEpoch(Epoch.create(31)))));
+ new ForceSnapshot(new
ClusterMetadata(Murmur3Partitioner.instance).forceEpoch(Epoch.create(31)))));
Collections.shuffle(entries);
log.append(entries);
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