1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.cluster.serialization;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterModule;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.Diff;
import org.elasticsearch.cluster.ESAllocationTestCase;
import org.elasticsearch.cluster.RestoreInProgress;
import org.elasticsearch.cluster.SnapshotDeletionsInProgress;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.allocation.AllocationService;
import org.elasticsearch.common.UUIDs;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.NamedWriteableAwareStreamInput;
import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.snapshots.Snapshot;
import org.elasticsearch.snapshots.SnapshotId;
import java.util.Collections;
import static org.elasticsearch.test.VersionUtils.randomVersionBetween;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
public class ClusterSerializationTests extends ESAllocationTestCase {
public void testClusterStateSerialization() throws Exception {
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(10).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
DiscoveryNodes nodes = DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3")).localNodeId("node1").masterNodeId("node2").build();
ClusterState clusterState = ClusterState.builder(new ClusterName("clusterName1")).nodes(nodes).metaData(metaData).routingTable(routingTable).build();
AllocationService strategy = createAllocationService();
clusterState = ClusterState.builder(clusterState).routingTable(strategy.reroute(clusterState, "reroute").routingTable()).build();
ClusterState serializedClusterState = ClusterState.Builder.fromBytes(ClusterState.Builder.toBytes(clusterState), newNode("node1"),
new NamedWriteableRegistry(ClusterModule.getNamedWriteables()));
assertThat(serializedClusterState.getClusterName().value(), equalTo(clusterState.getClusterName().value()));
assertThat(serializedClusterState.routingTable().toString(), equalTo(clusterState.routingTable().toString()));
}
public void testRoutingTableSerialization() throws Exception {
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(10).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
DiscoveryNodes nodes = DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3")).build();
ClusterState clusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).nodes(nodes)
.metaData(metaData).routingTable(routingTable).build();
AllocationService strategy = createAllocationService();
RoutingTable source = strategy.reroute(clusterState, "reroute").routingTable();
BytesStreamOutput outStream = new BytesStreamOutput();
source.writeTo(outStream);
StreamInput inStream = outStream.bytes().streamInput();
RoutingTable target = RoutingTable.readFrom(inStream);
assertThat(target.toString(), equalTo(source.toString()));
}
public void testSnapshotDeletionsInProgressSerialization() throws Exception {
boolean includeRestore = randomBoolean();
ClusterState.Builder builder = ClusterState.builder(ClusterState.EMPTY_STATE)
.putCustom(SnapshotDeletionsInProgress.TYPE,
SnapshotDeletionsInProgress.newInstance(
new SnapshotDeletionsInProgress.Entry(
new Snapshot("repo1", new SnapshotId("snap1", UUIDs.randomBase64UUID())),
randomNonNegativeLong(), randomNonNegativeLong())
));
if (includeRestore) {
builder.putCustom(RestoreInProgress.TYPE,
new RestoreInProgress(
new RestoreInProgress.Entry(
new Snapshot("repo2", new SnapshotId("snap2", UUIDs.randomBase64UUID())),
RestoreInProgress.State.STARTED,
Collections.singletonList("index_name"),
ImmutableOpenMap.of()
)
));
}
ClusterState clusterState = builder.incrementVersion().build();
Diff<ClusterState> diffs = clusterState.diff(ClusterState.EMPTY_STATE);
// serialize with current version
BytesStreamOutput outStream = new BytesStreamOutput();
diffs.writeTo(outStream);
StreamInput inStream = outStream.bytes().streamInput();
inStream = new NamedWriteableAwareStreamInput(inStream, new NamedWriteableRegistry(ClusterModule.getNamedWriteables()));
Diff<ClusterState> serializedDiffs = ClusterState.readDiffFrom(inStream, clusterState.nodes().getLocalNode());
ClusterState stateAfterDiffs = serializedDiffs.apply(ClusterState.EMPTY_STATE);
assertThat(stateAfterDiffs.custom(RestoreInProgress.TYPE), includeRestore ? notNullValue() : nullValue());
assertThat(stateAfterDiffs.custom(SnapshotDeletionsInProgress.TYPE), notNullValue());
// serialize with old version
outStream = new BytesStreamOutput();
outStream.setVersion(Version.CURRENT.minimumIndexCompatibilityVersion());
diffs.writeTo(outStream);
inStream = outStream.bytes().streamInput();
inStream = new NamedWriteableAwareStreamInput(inStream, new NamedWriteableRegistry(ClusterModule.getNamedWriteables()));
serializedDiffs = ClusterState.readDiffFrom(inStream, clusterState.nodes().getLocalNode());
stateAfterDiffs = serializedDiffs.apply(ClusterState.EMPTY_STATE);
assertThat(stateAfterDiffs.custom(RestoreInProgress.TYPE), includeRestore ? notNullValue() : nullValue());
assertThat(stateAfterDiffs.custom(SnapshotDeletionsInProgress.TYPE), nullValue());
// remove the custom and try serializing again with old version
clusterState = ClusterState.builder(clusterState).removeCustom(SnapshotDeletionsInProgress.TYPE).incrementVersion().build();
outStream = new BytesStreamOutput();
diffs.writeTo(outStream);
inStream = outStream.bytes().streamInput();
inStream = new NamedWriteableAwareStreamInput(inStream, new NamedWriteableRegistry(ClusterModule.getNamedWriteables()));
serializedDiffs = ClusterState.readDiffFrom(inStream, clusterState.nodes().getLocalNode());
stateAfterDiffs = serializedDiffs.apply(stateAfterDiffs);
assertThat(stateAfterDiffs.custom(RestoreInProgress.TYPE), includeRestore ? notNullValue() : nullValue());
assertThat(stateAfterDiffs.custom(SnapshotDeletionsInProgress.TYPE), nullValue());
}
}
|
