| /* |
| * 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.solr.common.cloud; |
| |
| import static org.apache.solr.client.solrj.SolrRequest.METHOD.POST; |
| import static org.apache.solr.common.params.CollectionAdminParams.PER_REPLICA_STATE; |
| |
| import java.lang.invoke.MethodHandles; |
| import java.util.Collections; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.apache.solr.client.solrj.SolrClient; |
| import org.apache.solr.client.solrj.embedded.JettySolrRunner; |
| import org.apache.solr.client.solrj.request.CollectionAdminRequest; |
| import org.apache.solr.client.solrj.request.V2Request; |
| import org.apache.solr.client.solrj.response.CollectionAdminResponse; |
| import org.apache.solr.client.solrj.response.SolrPingResponse; |
| import org.apache.solr.cloud.MiniSolrCloudCluster; |
| import org.apache.solr.cloud.SolrCloudTestCase; |
| import org.apache.solr.util.LogLevel; |
| import org.apache.zookeeper.data.Stat; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** This test would be faster if we simulated the zk state instead. */ |
| @LogLevel( |
| "org.apache.solr.common.cloud.ZkStateReader=DEBUG;" |
| + "org.apache.solr.handler.admin.CollectionsHandler=DEBUG;" |
| + "org.apache.solr.common.cloud.PerReplicaStatesOps=DEBUG;" |
| + "org.apache.solr.cloud.Overseer=INFO;" |
| + "org.apache.solr.common.cloud=INFO;" |
| + "org.apache.solr.cloud.api.collections=INFO;" |
| + "org.apache.solr.cloud.overseer=INFO") |
| public class PerReplicaStatesIntegrationTest extends SolrCloudTestCase { |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| public void testPerReplicaStateCollection() throws Exception { |
| |
| String testCollection = "perReplicaState_test"; |
| |
| MiniSolrCloudCluster cluster = |
| configureCluster(3) |
| .addConfig( |
| "conf", |
| getFile("solrj") |
| .toPath() |
| .resolve("solr") |
| .resolve("configsets") |
| .resolve("streaming") |
| .resolve("conf")) |
| .withJettyConfig(jetty -> jetty.enableV2(true)) |
| .configure(); |
| try { |
| int liveNodes = cluster.getJettySolrRunners().size(); |
| CollectionAdminRequest.createCollection(testCollection, "conf", 2, 2) |
| .setPerReplicaState(Boolean.TRUE) |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 2, 4); |
| final SolrClient clientUnderTest = cluster.getSolrClient(); |
| final SolrPingResponse response = clientUnderTest.ping(testCollection); |
| assertEquals("This should be OK", 0, response.getStatus()); |
| DocCollection c = cluster.getZkStateReader().getCollection(testCollection); |
| c.forEachReplica((s, replica) -> assertNotNull(replica.getReplicaState())); |
| PerReplicaStates prs = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(testCollection), cluster.getZkClient(), null); |
| assertEquals(4, prs.states.size()); |
| JettySolrRunner jsr = cluster.startJettySolrRunner(); |
| // Now let's do an add replica |
| CollectionAdminRequest.addReplicaToShard(testCollection, "shard1") |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 2, 5); |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(testCollection), cluster.getZkClient(), null); |
| assertEquals(5, prs.states.size()); |
| |
| // Test delete replica |
| Replica leader = c.getReplica((s, replica) -> replica.isLeader()); |
| CollectionAdminRequest.deleteReplica(testCollection, leader.shard, leader.getName()) |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 2, 4); |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(testCollection), cluster.getZkClient(), null); |
| assertEquals(4, prs.states.size()); |
| |
| testCollection = "perReplicaState_testv2"; |
| new V2Request.Builder("/collections") |
| .withMethod(POST) |
| .withPayload( |
| "{create: {name: perReplicaState_testv2, config : conf, numShards : 2, nrtReplicas : 2, perReplicaState : true, maxShardsPerNode : 5}}") |
| .build() |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 2, 4); |
| c = cluster.getZkStateReader().getCollection(testCollection); |
| c.forEachReplica((s, replica) -> assertNotNull(replica.getReplicaState())); |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(testCollection), cluster.getZkClient(), null); |
| assertEquals(4, prs.states.size()); |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| |
| public void testRestart() throws Exception { |
| String testCollection = "prs_restart_test"; |
| MiniSolrCloudCluster cluster = |
| configureCluster(1) |
| .addConfig( |
| "conf", |
| getFile("solrj") |
| .toPath() |
| .resolve("solr") |
| .resolve("configsets") |
| .resolve("streaming") |
| .resolve("conf")) |
| .withJettyConfig(jetty -> jetty.enableV2(true)) |
| .configure(); |
| try { |
| CollectionAdminRequest.createCollection(testCollection, "conf", 1, 1) |
| .setPerReplicaState(Boolean.TRUE) |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 1, 1); |
| |
| DocCollection c = cluster.getZkStateReader().getCollection(testCollection); |
| c.forEachReplica((s, replica) -> assertNotNull(replica.getReplicaState())); |
| String collectionPath = DocCollection.getCollectionPath(testCollection); |
| PerReplicaStates prs = |
| PerReplicaStatesFetcher.fetch( |
| collectionPath, SolrCloudTestCase.cluster.getZkClient(), null); |
| assertEquals(1, prs.states.size()); |
| |
| JettySolrRunner jsr = cluster.startJettySolrRunner(); |
| assertEquals(2, cluster.getJettySolrRunners().size()); |
| |
| // Now let's do an add replica |
| CollectionAdminRequest.addReplicaToShard(testCollection, "shard1") |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(testCollection, 1, 2); |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| collectionPath, SolrCloudTestCase.cluster.getZkClient(), null); |
| assertEquals(2, prs.states.size()); |
| c = cluster.getZkStateReader().getCollection(testCollection); |
| prs.states.forEachEntry((s, state) -> assertEquals(Replica.State.ACTIVE, state.state)); |
| |
| String replicaName = null; |
| for (Replica r : c.getSlice("shard1").getReplicas()) { |
| if (r.getNodeName().equals(jsr.getNodeName())) { |
| replicaName = r.getName(); |
| } |
| } |
| |
| if (replicaName != null) { |
| if (log.isInfoEnabled()) { |
| log.info( |
| "restarting the node : {}, state.json v: {} downreplica :{}", |
| jsr.getNodeName(), |
| c.getZNodeVersion(), |
| replicaName); |
| } |
| jsr.stop(); |
| c = cluster.getZkStateReader().getCollection(testCollection); |
| if (log.isInfoEnabled()) { |
| log.info("after down node, state.json v: {}", c.getZNodeVersion()); |
| } |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| collectionPath, SolrCloudTestCase.cluster.getZkClient(), null); |
| PerReplicaStates.State st = prs.get(replicaName); |
| assertNotEquals(Replica.State.ACTIVE, st.state); |
| jsr.start(); |
| cluster.waitForActiveCollection(testCollection, 1, 2); |
| prs = |
| PerReplicaStatesFetcher.fetch( |
| collectionPath, SolrCloudTestCase.cluster.getZkClient(), null); |
| prs.states.forEachEntry((s, state) -> assertEquals(Replica.State.ACTIVE, state.state)); |
| } |
| |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| |
| public void testMultipleTransitions() throws Exception { |
| String COLL = "prs_modify_op_coll"; |
| MiniSolrCloudCluster cluster = |
| configureCluster(2) |
| .withJettyConfig(jetty -> jetty.enableV2(true)) |
| .addConfig( |
| "conf", |
| getFile("solrj") |
| .toPath() |
| .resolve("solr") |
| .resolve("configsets") |
| .resolve("streaming") |
| .resolve("conf")) |
| .configure(); |
| PerReplicaStates original = null; |
| try { |
| CollectionAdminRequest.createCollection(COLL, "conf", 3, 1) |
| .setPerReplicaState(Boolean.TRUE) |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(COLL, 3, 3); |
| |
| PerReplicaStates prs1 = |
| original = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(COLL), cluster.getZkClient(), null); |
| log.info("prs1 : {}", prs1); |
| |
| CollectionAdminRequest.modifyCollection( |
| COLL, Collections.singletonMap(PER_REPLICA_STATE, "false")) |
| .process(cluster.getSolrClient()); |
| cluster |
| .getZkStateReader() |
| .waitForState( |
| COLL, |
| 5, |
| TimeUnit.SECONDS, |
| (liveNodes, collectionState) -> |
| "false".equals(collectionState.getProperties().get(PER_REPLICA_STATE))); |
| CollectionAdminRequest.modifyCollection( |
| COLL, Collections.singletonMap(PER_REPLICA_STATE, "true")) |
| .process(cluster.getSolrClient()); |
| cluster |
| .getZkStateReader() |
| .waitForState( |
| COLL, |
| 5, |
| TimeUnit.SECONDS, |
| (liveNodes, collectionState) -> { |
| AtomicBoolean anyFail = new AtomicBoolean(false); |
| PerReplicaStates prs2 = |
| PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(COLL), cluster.getZkClient(), null); |
| prs2.states.forEachEntry( |
| (r, newState) -> { |
| if (newState.getDuplicate() != null) anyFail.set(true); |
| }); |
| return !anyFail.get(); |
| }); |
| |
| } finally { |
| System.out.println("prs1 : " + original); |
| System.out.println( |
| "prs2 : " |
| + PerReplicaStatesFetcher.fetch( |
| DocCollection.getCollectionPath(COLL), cluster.getZkClient(), null)); |
| cluster.shutdown(); |
| } |
| } |
| |
| public void testZkNodeVersions() throws Exception { |
| String NONPRS_COLL = "non_prs_test_coll1"; |
| String PRS_COLL = "prs_test_coll2"; |
| MiniSolrCloudCluster cluster = |
| configureCluster(3) |
| .withDistributedClusterStateUpdates(false, false) |
| .addConfig( |
| "conf", |
| getFile("solrj") |
| .toPath() |
| .resolve("solr") |
| .resolve("configsets") |
| .resolve("streaming") |
| .resolve("conf")) |
| .withJettyConfig(jetty -> jetty.enableV2(true)) |
| .configure(); |
| try { |
| Stat stat = null; |
| CollectionAdminRequest.createCollection(NONPRS_COLL, "conf", 10, 1) |
| .process(cluster.getSolrClient()); |
| stat = cluster.getZkClient().exists(DocCollection.getCollectionPath(NONPRS_COLL), null, true); |
| log.info(""); |
| // the actual number can vary depending on batching |
| assertTrue(stat.getVersion() >= 2); |
| assertEquals(0, stat.getCversion()); |
| |
| CollectionAdminRequest.createCollection(PRS_COLL, "conf", 10, 1) |
| .setPerReplicaState(Boolean.TRUE) |
| .process(cluster.getSolrClient()); |
| stat = cluster.getZkClient().exists(DocCollection.getCollectionPath(PRS_COLL), null, true); |
| // +1 after all replica are added with on state.json write to CreateCollectionCmd.setData() |
| assertEquals(1, stat.getVersion()); |
| // For each replica: |
| // +1 for ZkController#preRegister, in ZkController#publish, direct write PRS to down |
| // +2 for runLeaderProcess, flip the replica to leader |
| // +2 for ZkController#register, in ZkController#publish, direct write PRS to active |
| // Hence 5 * 10 = 50. Take note that +1 for ADD, and +2 for all the UPDATE (remove the old PRS |
| // and add new PRS entry) |
| assertEquals(50, stat.getCversion()); |
| |
| CollectionAdminResponse response = |
| CollectionAdminRequest.addReplicaToShard(PRS_COLL, "shard1") |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(PRS_COLL, 10, 11); |
| stat = cluster.getZkClient().exists(DocCollection.getCollectionPath(PRS_COLL), null, true); |
| // For the new replica: |
| // +2 for state.json overseer writes, even though there's no longer PRS updates from |
| // overseer, current code would still do a "TOUCH" on the PRS entry |
| // +1 for ZkController#preRegister, in ZkController#publish, direct write PRS to down |
| // +2 for RecoveryStrategy#doRecovery, since this is no longer a new collection, new replica |
| // will go through recovery, direct write PRS to RECOVERING |
| // +2 for ZkController#register, in ZkController#publish, direct write PRS to active |
| assertEquals(57, stat.getCversion()); |
| |
| String addedCore = response.getCollectionCoresStatus().entrySet().iterator().next().getKey(); |
| Replica addedReplica = |
| cluster |
| .getZkStateReader() |
| .getCollection(PRS_COLL) |
| .getSlice("shard1") |
| .getReplicas(replica -> addedCore.equals(replica.getCoreName())) |
| .get(0); |
| CollectionAdminRequest.deleteReplica(PRS_COLL, "shard1", addedReplica.getName()) |
| .process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(PRS_COLL, 10, 10); |
| stat = cluster.getZkClient().exists(DocCollection.getCollectionPath(PRS_COLL), null, true); |
| // For replica deletion |
| // +1 for ZkController#unregister, which delete the PRS entry from data node |
| // +2 for state.json overseer writes, even though there's no longer PRS updates from |
| // overseer, current code would still do a "TOUCH" on the PRS entry |
| assertEquals(60, stat.getCversion()); |
| |
| for (JettySolrRunner j : cluster.getJettySolrRunners()) { |
| j.stop(); |
| j.start(true); |
| stat = cluster.getZkClient().exists(DocCollection.getCollectionPath(PRS_COLL), null, true); |
| // ensure restart does not update the state.json, after addReplica/deleteReplica, 2 more |
| // updates hence at version 3 on state.json version |
| assertEquals(3, stat.getVersion()); |
| } |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| } |
