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Posted to commits@lucene.apache.org by cp...@apache.org on 2016/10/31 14:06:10 UTC

[17/37] lucene-solr:jira/solr-8542-v2: SOLR-9132: Cut over some collections API and recovery tests

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/CustomCollectionTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/CustomCollectionTest.java b/solr/core/src/test/org/apache/solr/cloud/CustomCollectionTest.java
index 477641d..63a3272 100644
--- a/solr/core/src/test/org/apache/solr/cloud/CustomCollectionTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/CustomCollectionTest.java
@@ -16,41 +16,19 @@
  */
 package org.apache.solr.cloud;
 
-import org.apache.lucene.util.LuceneTestCase.Slow;
+import java.util.Map;
+
 import org.apache.lucene.util.TestUtil;
-import org.apache.solr.SolrTestCaseJ4.SuppressSSL;
-import org.apache.solr.client.solrj.SolrClient;
 import org.apache.solr.client.solrj.SolrQuery;
-import org.apache.solr.client.solrj.SolrRequest;
-import org.apache.solr.client.solrj.SolrServerException;
-import org.apache.solr.client.solrj.impl.CloudSolrClient;
-import org.apache.solr.client.solrj.impl.HttpSolrClient;
-import org.apache.solr.client.solrj.request.QueryRequest;
+import org.apache.solr.client.solrj.request.CollectionAdminRequest;
 import org.apache.solr.client.solrj.request.UpdateRequest;
-import org.apache.solr.client.solrj.response.QueryResponse;
-import org.apache.solr.common.cloud.ClusterState;
+import org.apache.solr.common.SolrInputDocument;
 import org.apache.solr.common.cloud.DocCollection;
-import org.apache.solr.common.cloud.ImplicitDocRouter;
 import org.apache.solr.common.cloud.Replica;
-import org.apache.solr.common.cloud.ZkStateReader;
-import org.apache.solr.common.params.CollectionParams.CollectionAction;
-import org.apache.solr.common.params.ModifiableSolrParams;
-import org.apache.solr.common.util.Utils;
+import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.IOException;
-import java.lang.invoke.MethodHandles;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
 
-import static org.apache.solr.cloud.OverseerCollectionMessageHandler.NUM_SLICES;
-import static org.apache.solr.cloud.OverseerCollectionMessageHandler.SHARDS_PROP;
 import static org.apache.solr.common.cloud.DocCollection.DOC_ROUTER;
 import static org.apache.solr.common.cloud.ZkStateReader.MAX_SHARDS_PER_NODE;
 import static org.apache.solr.common.cloud.ZkStateReader.REPLICATION_FACTOR;
@@ -59,371 +37,162 @@ import static org.apache.solr.common.params.ShardParams._ROUTE_;
 /**
  * Tests the Custom Sharding API.
  */
-@Slow
-@SuppressSSL(bugUrl = "https://issues.apache.org/jira/browse/SOLR-5776")
-public class CustomCollectionTest extends AbstractFullDistribZkTestBase {
+public class CustomCollectionTest extends SolrCloudTestCase {
 
-  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+  private static final int NODE_COUNT = 4;
 
-  protected String getSolrXml() {
-    return "solr.xml";
+  @BeforeClass
+  public static void setupCluster() throws Exception {
+    configureCluster(NODE_COUNT)
+        .addConfig("conf", configset("cloud-dynamic"))
+        .configure();
   }
 
-
-  public CustomCollectionTest() {
-    sliceCount = 2;
-  }
-
-  @Override
-  protected void setDistributedParams(ModifiableSolrParams params) {
-
-    if (r.nextBoolean()) {
-      // don't set shards, let that be figured out from the cloud state
-    } else {
-      // use shard ids rather than physical locations
-      StringBuilder sb = new StringBuilder();
-      for (int i = 0; i < getShardCount(); i++) {
-        if (i > 0)
-          sb.append(',');
-        sb.append("shard" + (i + 3));
-      }
-      params.set("shards", sb.toString());
-    }
+  @Before
+  public void ensureClusterEmpty() throws Exception {
+    cluster.deleteAllCollections();
   }
 
   @Test
-  @ShardsFixed(num = 4)
-  public void test() throws Exception {
-    testCustomCollectionsAPI();
-    testRouteFieldForHashRouter();
-    testCreateShardRepFactor();
-  }
-
+  public void testCustomCollectionsAPI() throws Exception {
 
-  private void testCustomCollectionsAPI() throws Exception {
-    String COLL_PREFIX = "implicitcoll";
+    final String collection = "implicitcoll";
+    int replicationFactor = TestUtil.nextInt(random(), 0, 3) + 2;
+    int numShards = 3;
+    int maxShardsPerNode = (((numShards + 1) * replicationFactor) / NODE_COUNT) + 1;
 
-    // TODO: fragile - because we dont pass collection.confName, it will only
-    // find a default if a conf set with a name matching the collection name is found, or
-    // if there is only one conf set. That and the fact that other tests run first in this
-    // env make this pretty fragile
+    CollectionAdminRequest.createCollectionWithImplicitRouter(collection, "conf", "a,b,c", replicationFactor)
+        .setMaxShardsPerNode(maxShardsPerNode)
+        .process(cluster.getSolrClient());
 
-    // create new collections rapid fire
-    Map<String,List<Integer>> collectionInfos = new HashMap<>();
-    int replicationFactor = TestUtil.nextInt(random(), 0, 3) + 2;
+    DocCollection coll = getCollectionState(collection);
+    assertEquals("implicit", ((Map) coll.get(DOC_ROUTER)).get("name"));
+    assertNotNull(coll.getStr(REPLICATION_FACTOR));
+    assertNotNull(coll.getStr(MAX_SHARDS_PER_NODE));
+    assertNull("A shard of a Collection configured with implicit router must have null range",
+        coll.getSlice("a").getRange());
 
-    int cnt = random().nextInt(6) + 1;
-
-    for (int i = 0; i < cnt; i++) {
-      int numShards = 3;
-      int maxShardsPerNode = ((((numShards+1) * replicationFactor) / getCommonCloudSolrClient()
-          .getZkStateReader().getClusterState().getLiveNodes().size())) + 1;
-
-
-      CloudSolrClient client = null;
-      try {
-        if (i == 0) {
-          // Test if we can create a collection through CloudSolrServer where
-          // you havnt set default-collection
-          // This is nice because you want to be able to create you first
-          // collection using CloudSolrServer, and in such case there is
-          // nothing reasonable to set as default-collection
-          client = createCloudClient(null);
-        } else if (i == 1) {
-          // Test if we can create a collection through CloudSolrServer where
-          // you have set default-collection to a non-existing collection
-          // This is nice because you want to be able to create you first
-          // collection using CloudSolrServer, and in such case there is
-          // nothing reasonable to set as default-collection, but you might want
-          // to use the same CloudSolrServer throughout the entire
-          // lifetime of your client-application, so it is nice to be able to
-          // set a default-collection on this CloudSolrServer once and for all
-          // and use this CloudSolrServer to create the collection
-          client = createCloudClient(COLL_PREFIX + i);
-        }
-
-        Map<String, Object> props = Utils.makeMap(
-            "router.name", ImplicitDocRouter.NAME,
-            REPLICATION_FACTOR, replicationFactor,
-            MAX_SHARDS_PER_NODE, maxShardsPerNode,
-            SHARDS_PROP, "a,b,c");
-
-        createCollection(collectionInfos, COLL_PREFIX + i,props,client);
-      } finally {
-        if (client != null) client.close();
+    new UpdateRequest()
+        .add("id", "6")
+        .add("id", "7")
+        .add("id", "8")
+        .withRoute("a")
+        .commit(cluster.getSolrClient(), collection);
+
+    assertEquals(3, cluster.getSolrClient().query(collection, new SolrQuery("*:*")).getResults().getNumFound());
+    assertEquals(0, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "b")).getResults().getNumFound());
+    assertEquals(3, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
+
+    cluster.getSolrClient().deleteByQuery(collection, "*:*");
+    cluster.getSolrClient().commit(collection, true, true);
+    assertEquals(0, cluster.getSolrClient().query(collection, new SolrQuery("*:*")).getResults().getNumFound());
+
+    new UpdateRequest()
+        .add("id", "9")
+        .add("id", "10")
+        .add("id", "11")
+        .withRoute("c")
+        .commit(cluster.getSolrClient(), collection);
+
+    assertEquals(3, cluster.getSolrClient().query(collection, new SolrQuery("*:*")).getResults().getNumFound());
+    assertEquals(0, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
+    assertEquals(3, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "c")).getResults().getNumFound());
+
+    //Testing CREATESHARD
+    CollectionAdminRequest.createShard(collection, "x")
+        .process(cluster.getSolrClient());
+    waitForState("Expected shard 'x' to be active", collection, (n, c) -> {
+      if (c.getSlice("x") == null)
+        return false;
+      for (Replica r : c.getSlice("x")) {
+        if (r.getState() != Replica.State.ACTIVE)
+          return false;
       }
-    }
+      return true;
+    });
 
-    Set<Entry<String,List<Integer>>> collectionInfosEntrySet = collectionInfos.entrySet();
-    for (Entry<String,List<Integer>> entry : collectionInfosEntrySet) {
-      String collection = entry.getKey();
-      List<Integer> list = entry.getValue();
-      checkForCollection(collection, list, null);
+    new UpdateRequest()
+        .add("id", "66", _ROUTE_, "x")
+        .commit(cluster.getSolrClient(), collection);
+    // TODO - the local state is cached and causes the request to fail with 'unknown shard'
+    // assertEquals(1, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "x")).getResults().getNumFound());
 
-      String url = getUrlFromZk(getCommonCloudSolrClient().getZkStateReader().getClusterState(), collection);
+  }
 
-      try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-        // poll for a second - it can take a moment before we are ready to serve
-        waitForNon403or404or503(collectionClient);
-      }
-    }
-    ZkStateReader zkStateReader = getCommonCloudSolrClient().getZkStateReader();
-    for (int j = 0; j < cnt; j++) {
-      waitForRecoveriesToFinish(COLL_PREFIX + j, zkStateReader, false);
-    }
+  @Test
+  public void testRouteFieldForImplicitRouter() throws Exception {
 
-    ClusterState clusterState = zkStateReader.getClusterState();
+    int numShards = 4;
+    int replicationFactor = TestUtil.nextInt(random(), 0, 3) + 2;
+    int maxShardsPerNode = ((numShards * replicationFactor) / NODE_COUNT) + 1;
+    String shard_fld = "shard_s";
 
-    DocCollection coll = clusterState.getCollection(COLL_PREFIX + 0);
-    assertEquals("implicit", ((Map)coll.get(DOC_ROUTER)).get("name") );
-    assertNotNull(coll.getStr(REPLICATION_FACTOR));
-    assertNotNull(coll.getStr(MAX_SHARDS_PER_NODE));
-    assertNull("A shard of a Collection configured with implicit router must have null range",
-        coll.getSlice("a").getRange());
+    final String collection = "withShardField";
 
-    List<String> collectionNameList = new ArrayList<>();
-    collectionNameList.addAll(collectionInfos.keySet());
-    log.info("Collections created : "+collectionNameList );
+    CollectionAdminRequest.createCollectionWithImplicitRouter(collection, "conf", "a,b,c,d", replicationFactor)
+        .setMaxShardsPerNode(maxShardsPerNode)
+        .setRouterField(shard_fld)
+        .process(cluster.getSolrClient());
 
-    String collectionName = collectionNameList.get(random().nextInt(collectionNameList.size()));
+    new UpdateRequest()
+        .add("id", "6", shard_fld, "a")
+        .add("id", "7", shard_fld, "a")
+        .add("id", "8", shard_fld, "b")
+        .commit(cluster.getSolrClient(), collection);
 
-    String url = getUrlFromZk(getCommonCloudSolrClient().getZkStateReader().getClusterState(), collectionName);
+    assertEquals(3, cluster.getSolrClient().query(collection, new SolrQuery("*:*")).getResults().getNumFound());
+    assertEquals(1, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "b")).getResults().getNumFound());
+    assertEquals(2, cluster.getSolrClient().query(collection, new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
 
-    String shard_fld = "shard_s";
-    try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-
-      // lets try and use the solrj client to index a couple documents
-  
-      collectionClient.add(getDoc(id, 6, i1, -600, tlong, 600, t1,
-          "humpty dumpy sat on a wall", _ROUTE_,"a"));
-  
-      collectionClient.add(getDoc(id, 7, i1, -600, tlong, 600, t1,
-          "humpty dumpy3 sat on a walls", _ROUTE_,"a"));
-  
-      collectionClient.add(getDoc(id, 8, i1, -600, tlong, 600, t1,
-          "humpty dumpy2 sat on a walled", _ROUTE_,"a"));
-  
-      collectionClient.commit();
-  
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*")).getResults().getNumFound());
-      assertEquals(0, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"b")).getResults().getNumFound());
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"a")).getResults().getNumFound());
-  
-      collectionClient.deleteByQuery("*:*");
-      collectionClient.commit(true,true);
-      assertEquals(0, collectionClient.query(new SolrQuery("*:*")).getResults().getNumFound());
-  
-      UpdateRequest up = new UpdateRequest();
-      up.setParam(_ROUTE_, "c");
-      up.setParam("commit","true");
-  
-      up.add(getDoc(id, 9, i1, -600, tlong, 600, t1,
-          "humpty dumpy sat on a wall"));
-      up.add(getDoc(id, 10, i1, -600, tlong, 600, t1,
-          "humpty dumpy3 sat on a walls"));
-      up.add(getDoc(id, 11, i1, -600, tlong, 600, t1,
-          "humpty dumpy2 sat on a walled"));
-  
-      collectionClient.request(up);
-  
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*")).getResults().getNumFound());
-      assertEquals(0, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"a")).getResults().getNumFound());
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"c")).getResults().getNumFound());
-  
-      //Testing CREATESHARD
-      ModifiableSolrParams params = new ModifiableSolrParams();
-      params.set("action", CollectionAction.CREATESHARD.toString());
-      params.set("collection", collectionName);
-      params.set("shard", "x");
-      SolrRequest request = new QueryRequest(params);
-      request.setPath("/admin/collections");
-      try (SolrClient server = createNewSolrClient("", getBaseUrl((HttpSolrClient) clients.get(0)))) {
-        server.request(request);
-      }
-      waitForCollection(zkStateReader,collectionName,4);
-      //wait for all the replicas to become active
-      int attempts = 0;
-      while(true){
-        if(attempts>30 ) fail("Not enough active replicas in the shard 'x'");
-        attempts++;
-        int activeReplicaCount = 0;
-        for (Replica x : zkStateReader.getClusterState().getCollection(collectionName).getSlice("x").getReplicas()) {
-          if (x.getState() == Replica.State.ACTIVE) {
-            activeReplicaCount++;
-          }
-        }
-        Thread.sleep(500);
-        if(activeReplicaCount >= replicationFactor) break;
-      }
-      log.info(zkStateReader.getClusterState().toString());
-  
-      collectionClient.add(getDoc(id, 66, i1, -600, tlong, 600, t1,
-          "humpty dumpy sat on a wall", _ROUTE_,"x"));
-      collectionClient.commit();
-      assertEquals(1, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"x")).getResults().getNumFound());
-  
-  
-      int numShards = 4;
-      replicationFactor = TestUtil.nextInt(random(), 0, 3) + 2;
-      int maxShardsPerNode = (((numShards * replicationFactor) / getCommonCloudSolrClient()
-          .getZkStateReader().getClusterState().getLiveNodes().size())) + 1;
-
-      try (CloudSolrClient client = createCloudClient(null)) {
-        Map<String, Object> props = Utils.makeMap(
-            "router.name", ImplicitDocRouter.NAME,
-            REPLICATION_FACTOR, replicationFactor,
-            MAX_SHARDS_PER_NODE, maxShardsPerNode,
-            SHARDS_PROP, "a,b,c,d",
-            "router.field", shard_fld);
-  
-        collectionName = COLL_PREFIX + "withShardField";
-        createCollection(collectionInfos, collectionName,props,client);
-      }
-  
-      List<Integer> list = collectionInfos.get(collectionName);
-      checkForCollection(collectionName, list, null);
-  
-  
-      url = getUrlFromZk(getCommonCloudSolrClient().getZkStateReader().getClusterState(), collectionName);
-    }
-
-    try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-         // poll for a second - it can take a moment before we are ready to serve
-      waitForNon403or404or503(collectionClient);
-    }
-
-    try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-      // lets try and use the solrj client to index a couple documents
-  
-      collectionClient.add(getDoc(id, 6, i1, -600, tlong, 600, t1,
-          "humpty dumpy sat on a wall", shard_fld,"a"));
-  
-      collectionClient.add(getDoc(id, 7, i1, -600, tlong, 600, t1,
-          "humpty dumpy3 sat on a walls", shard_fld,"a"));
-  
-      collectionClient.add(getDoc(id, 8, i1, -600, tlong, 600, t1,
-          "humpty dumpy2 sat on a walled", shard_fld,"a"));
-  
-      collectionClient.commit();
-  
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*")).getResults().getNumFound());
-      assertEquals(0, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_,"b")).getResults().getNumFound());
-      //TODO debug the following case
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
-    }
   }
 
-  private void testRouteFieldForHashRouter()throws Exception{
+  @Test
+  public void testRouteFieldForHashRouter()throws Exception{
     String collectionName = "routeFieldColl";
     int numShards = 4;
     int replicationFactor = 2;
-    int maxShardsPerNode = (((numShards * replicationFactor) / getCommonCloudSolrClient()
-        .getZkStateReader().getClusterState().getLiveNodes().size())) + 1;
-
-    HashMap<String, List<Integer>> collectionInfos = new HashMap<>();
+    int maxShardsPerNode = ((numShards * replicationFactor) / NODE_COUNT) + 1;
     String shard_fld = "shard_s";
-    try (CloudSolrClient client = createCloudClient(null)) {
-      Map<String, Object> props = Utils.makeMap(
-          REPLICATION_FACTOR, replicationFactor,
-          MAX_SHARDS_PER_NODE, maxShardsPerNode,
-          NUM_SLICES, numShards,
-          "router.field", shard_fld);
-
-      createCollection(collectionInfos, collectionName,props,client);
-    }
-
-    List<Integer> list = collectionInfos.get(collectionName);
-    checkForCollection(collectionName, list, null);
-
-
-    String url = getUrlFromZk(getCommonCloudSolrClient().getZkStateReader().getClusterState(), collectionName);
-
-    try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-      // poll for a second - it can take a moment before we are ready to serve
-      waitForNon403or404or503(collectionClient);
-    }
-
-
-    try (HttpSolrClient collectionClient = getHttpSolrClient(url)) {
-      // lets try and use the solrj client to index a couple documents
-  
-      collectionClient.add(getDoc(id, 6, i1, -600, tlong, 600, t1,
-          "humpty dumpy sat on a wall", shard_fld,"a"));
-  
-      collectionClient.add(getDoc(id, 7, i1, -600, tlong, 600, t1,
-          "humpty dumpy3 sat on a walls", shard_fld,"a"));
-  
-      collectionClient.add(getDoc(id, 8, i1, -600, tlong, 600, t1,
-          "humpty dumpy2 sat on a walled", shard_fld,"a"));
-  
-      collectionClient.commit();
-  
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*")).getResults().getNumFound());
-      //TODO debug the following case
-      assertEquals(3, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
-  
-      collectionClient.deleteByQuery("*:*");
-      collectionClient.commit();
-  
-      collectionClient.add (getDoc( id,100,shard_fld, "b!doc1"));
-      collectionClient.commit();
-      assertEquals(1, collectionClient.query(new SolrQuery("*:*").setParam(_ROUTE_, "b!")).getResults().getNumFound());
-    }
-  }
 
-  private void testCreateShardRepFactor() throws Exception  {
-    String collectionName = "testCreateShardRepFactor";
-    HashMap<String, List<Integer>> collectionInfos = new HashMap<>();
-    try (CloudSolrClient client = createCloudClient(null)) {
-      Map<String, Object> props = Utils.makeMap(
-          REPLICATION_FACTOR, 1,
-          MAX_SHARDS_PER_NODE, 5,
-          NUM_SLICES, 2,
-          "shards", "a,b",
-          "router.name", "implicit");
-
-      createCollection(collectionInfos, collectionName, props, client);
-    }
-    ZkStateReader zkStateReader = getCommonCloudSolrClient().getZkStateReader();
-    waitForRecoveriesToFinish(collectionName, zkStateReader, false);
-
-    ModifiableSolrParams params = new ModifiableSolrParams();
-    params.set("action", CollectionAction.CREATESHARD.toString());
-    params.set("collection", collectionName);
-    params.set("shard", "x");
-    SolrRequest request = new QueryRequest(params);
-    request.setPath("/admin/collections");
-
-    try (SolrClient server = createNewSolrClient("", getBaseUrl((HttpSolrClient) clients.get(0)))) {
-      server.request(request);
-    }
-
-    waitForRecoveriesToFinish(collectionName, zkStateReader, false);
-
-    int replicaCount = 0;
-    int attempts = 0;
-    while (true) {
-      if (attempts > 30) fail("Not enough active replicas in the shard 'x'");
-      attempts++;
-      replicaCount = zkStateReader.getClusterState().getSlice(collectionName, "x").getReplicas().size();
-      if (replicaCount >= 1) break;
-      Thread.sleep(500);
-    }
-
-    assertEquals("CREATESHARD API created more than replicationFactor number of replicas", 1, replicaCount);
-  }
+    CollectionAdminRequest.createCollection(collectionName, "conf", numShards, replicationFactor)
+        .setMaxShardsPerNode(maxShardsPerNode)
+        .setRouterField(shard_fld)
+        .process(cluster.getSolrClient());
+
+    new UpdateRequest()
+        .add("id", "6", shard_fld, "a")
+        .add("id", "7", shard_fld, "a")
+        .add("id", "8", shard_fld, "b")
+        .commit(cluster.getSolrClient(), collectionName);
+
+    assertEquals(3, cluster.getSolrClient().query(collectionName, new SolrQuery("*:*")).getResults().getNumFound());
+    assertEquals(2, cluster.getSolrClient().query(collectionName, new SolrQuery("*:*").setParam(_ROUTE_, "a")).getResults().getNumFound());
+    assertEquals(1, cluster.getSolrClient().query(collectionName, new SolrQuery("*:*").setParam(_ROUTE_, "b")).getResults().getNumFound());
+    assertEquals(0, cluster.getSolrClient().query(collectionName, new SolrQuery("*:*").setParam(_ROUTE_, "c")).getResults().getNumFound());
+
 
+    cluster.getSolrClient().deleteByQuery(collectionName, "*:*");
+    cluster.getSolrClient().commit(collectionName);
 
-  @Override
-  protected QueryResponse queryServer(ModifiableSolrParams params) throws SolrServerException, IOException {
+    cluster.getSolrClient().add(collectionName, new SolrInputDocument("id", "100", shard_fld, "c!doc1"));
+    cluster.getSolrClient().commit(collectionName);
+    assertEquals(1, cluster.getSolrClient().query(collectionName, new SolrQuery("*:*").setParam(_ROUTE_, "c!")).getResults().getNumFound());
 
-    if (r.nextBoolean())
-      return super.queryServer(params);
+  }
+
+  @Test
+  public void testCreateShardRepFactor() throws Exception  {
+    final String collectionName = "testCreateShardRepFactor";
+    CollectionAdminRequest.createCollectionWithImplicitRouter(collectionName, "conf", "a,b", 1)
+        .process(cluster.getSolrClient());
 
-    if (r.nextBoolean())
-      params.set("collection",DEFAULT_COLLECTION);
+    CollectionAdminRequest.createShard(collectionName, "x")
+        .process(cluster.getSolrClient());
+
+    waitForState("Not enough active replicas in shard 'x'", collectionName, (n, c) -> {
+      return c.getSlice("x").getReplicas().size() == 1;
+    });
 
-    QueryResponse rsp = getCommonCloudSolrClient().query(params);
-    return rsp;
   }
+
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/MigrateRouteKeyTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/MigrateRouteKeyTest.java b/solr/core/src/test/org/apache/solr/cloud/MigrateRouteKeyTest.java
index 78f82ed..8e3f63d 100644
--- a/solr/core/src/test/org/apache/solr/cloud/MigrateRouteKeyTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/MigrateRouteKeyTest.java
@@ -51,6 +51,7 @@ public class MigrateRouteKeyTest extends SolrCloudTestCase {
 
     if (usually()) {
       CollectionAdminRequest.setClusterProperty("legacyCloud", "false").process(cluster.getSolrClient());
+      log.info("Using legacyCloud=false for cluster");
     }
   }
 

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/RecoveryZkTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/RecoveryZkTest.java b/solr/core/src/test/org/apache/solr/cloud/RecoveryZkTest.java
index a0cb4dc..0aecdf9 100644
--- a/solr/core/src/test/org/apache/solr/cloud/RecoveryZkTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/RecoveryZkTest.java
@@ -16,46 +16,59 @@
  */
 package org.apache.solr.cloud;
 
-import java.io.IOException;
+import java.lang.invoke.MethodHandles;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 import org.apache.lucene.util.LuceneTestCase.Slow;
 import org.apache.solr.client.solrj.SolrQuery;
-import org.apache.solr.client.solrj.SolrServerException;
 import org.apache.solr.client.solrj.embedded.JettySolrRunner;
-import org.apache.solr.common.SolrInputDocument;
-import org.apache.solr.common.cloud.ZkStateReader;
+import org.apache.solr.client.solrj.impl.HttpSolrClient;
+import org.apache.solr.client.solrj.request.CollectionAdminRequest;
+import org.apache.solr.client.solrj.request.UpdateRequest;
+import org.apache.solr.common.cloud.DocCollection;
+import org.apache.solr.common.cloud.Replica;
+import org.apache.solr.common.cloud.Slice;
+import org.junit.After;
+import org.junit.BeforeClass;
 import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 @Slow
-public class RecoveryZkTest extends AbstractFullDistribZkTestBase {
+public class RecoveryZkTest extends SolrCloudTestCase {
 
-  //private static final String DISTRIB_UPDATE_CHAIN = "distrib-update-chain";
-  private StoppableIndexingThread indexThread;
-  private StoppableIndexingThread indexThread2;
+  private static Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
 
-  public RecoveryZkTest() {
-    super();
-    sliceCount = 1;
-    fixShardCount(2);
-    schemaString = "schema15.xml";      // we need a string id
-  }
-  
-  public static String[] fieldNames = new String[]{"f_i", "f_f", "f_d", "f_l", "f_dt"};
-  public static RandVal[] randVals = new RandVal[]{rint, rfloat, rdouble, rlong, rdate};
-  
-  protected String[] getFieldNames() {
-    return fieldNames;
+  @BeforeClass
+  public static void setupCluster() throws Exception {
+    configureCluster(2)
+        .addConfig("conf", configset("cloud-minimal"))
+        .configure();
   }
 
-  protected RandVal[] getRandValues() {
-    return randVals;
+  private StoppableIndexingThread indexThread;
+  private StoppableIndexingThread indexThread2;
+
+  @After
+  public void stopThreads() throws InterruptedException {
+    indexThread.safeStop();
+    indexThread2.safeStop();
+    indexThread.join();
+    indexThread2.join();
   }
 
   @Test
   public void test() throws Exception {
-    handle.clear();
-    handle.put("timestamp", SKIPVAL);
-    
+
+    final String collection = "recoverytest";
+
+    CollectionAdminRequest.createCollection(collection, "conf", 1, 2)
+        .setMaxShardsPerNode(1)
+        .process(cluster.getSolrClient());
+    waitForState("Expected a collection with one shard and two replicas", collection, clusterShape(1, 2));
+    cluster.getSolrClient().setDefaultCollection(collection);
+
     // start a couple indexing threads
     
     int[] maxDocList = new int[] {300, 700, 1200, 1350, 3000};
@@ -67,12 +80,12 @@ public class RecoveryZkTest extends AbstractFullDistribZkTestBase {
     } else {
       maxDoc = maxDocNightlyList[random().nextInt(maxDocList.length - 1)];
     }
+    log.info("Indexing {} documents", maxDoc);
     
-    indexThread = new StoppableIndexingThread(controlClient, cloudClient, "1", true, maxDoc, 1, true);
+    indexThread = new StoppableIndexingThread(null, cluster.getSolrClient(), "1", true, maxDoc, 1, true);
     indexThread.start();
     
-    indexThread2 = new StoppableIndexingThread(controlClient, cloudClient, "2", true, maxDoc, 1, true);
-
+    indexThread2 = new StoppableIndexingThread(null, cluster.getSolrClient(), "2", true, maxDoc, 1, true);
     indexThread2.start();
 
     // give some time to index...
@@ -80,88 +93,57 @@ public class RecoveryZkTest extends AbstractFullDistribZkTestBase {
     Thread.sleep(waitTimes[random().nextInt(waitTimes.length - 1)]);
      
     // bring shard replica down
-    JettySolrRunner replica = chaosMonkey.stopShard("shard1", 1).jetty;
+    DocCollection state = getCollectionState(collection);
+    Replica leader = state.getLeader("shard1");
+    Replica replica = getRandomReplica(state.getSlice("shard1"), (r) -> leader != r);
 
+    JettySolrRunner jetty = cluster.getReplicaJetty(replica);
+    jetty.stop();
     
     // wait a moment - lets allow some docs to be indexed so replication time is non 0
     Thread.sleep(waitTimes[random().nextInt(waitTimes.length - 1)]);
     
     // bring shard replica up
-    replica.start();
+    jetty.start();
     
     // make sure replication can start
     Thread.sleep(3000);
-    ZkStateReader zkStateReader = cloudClient.getZkStateReader();
-    
+
     // stop indexing threads
     indexThread.safeStop();
     indexThread2.safeStop();
     
     indexThread.join();
     indexThread2.join();
-    
-    Thread.sleep(1000);
-  
-    waitForThingsToLevelOut(120);
-    
-    Thread.sleep(2000);
-    
-    waitForThingsToLevelOut(30);
-    
-    Thread.sleep(5000);
-    
-    waitForRecoveriesToFinish(DEFAULT_COLLECTION, zkStateReader, false, true);
+
+    new UpdateRequest()
+        .commit(cluster.getSolrClient(), collection);
+
+    cluster.getSolrClient().waitForState(collection, 120, TimeUnit.SECONDS, clusterShape(1, 2));
 
     // test that leader and replica have same doc count
-    
-    String fail = checkShardConsistency("shard1", false, false);
-    if (fail != null) {
-      fail(fail);
-    }
-    
-    SolrQuery query = new SolrQuery("*:*");
-    query.setParam("distrib", "false");
-    long client1Docs = shardToJetty.get("shard1").get(0).client.solrClient.query(query).getResults().getNumFound();
-    long client2Docs = shardToJetty.get("shard1").get(1).client.solrClient.query(query).getResults().getNumFound();
-    
-    assertTrue(client1Docs > 0);
-    assertEquals(client1Docs, client2Docs);
- 
-    // won't always pass yet...
-    //query("q", "*:*", "sort", "id desc");
-  }
-  
-  @Override
-  protected void indexDoc(SolrInputDocument doc) throws IOException,
-      SolrServerException {
-    controlClient.add(doc);
-    
-    // UpdateRequest ureq = new UpdateRequest();
-    // ureq.add(doc);
-    // ureq.setParam("update.chain", DISTRIB_UPDATE_CHAIN);
-    // ureq.process(cloudClient);
-    cloudClient.add(doc);
-  }
+    state = getCollectionState(collection);
+    assertShardConsistency(state.getSlice("shard1"), true);
 
-  
-  @Override
-  public void distribTearDown() throws Exception {
-    // make sure threads have been stopped...
-    indexThread.safeStop();
-    indexThread2.safeStop();
-    
-    indexThread.join();
-    indexThread2.join();
-    
-    super.distribTearDown();
   }
-  
-  // skip the randoms - they can deadlock...
-  @Override
-  protected void indexr(Object... fields) throws Exception {
-    SolrInputDocument doc = new SolrInputDocument();
-    addFields(doc, fields);
-    addFields(doc, "rnd_b", true);
-    indexDoc(doc);
+
+  private void assertShardConsistency(Slice shard, boolean expectDocs) throws Exception {
+    List<Replica> replicas = shard.getReplicas(r -> r.getState() == Replica.State.ACTIVE);
+    long[] numCounts = new long[replicas.size()];
+    int i = 0;
+    for (Replica replica : replicas) {
+      try (HttpSolrClient client = new HttpSolrClient.Builder(replica.getCoreUrl())
+          .withHttpClient(cluster.getSolrClient().getHttpClient()).build()) {
+        numCounts[i] = client.query(new SolrQuery("*:*").add("distrib", "false")).getResults().getNumFound();
+        i++;
+      }
+    }
+    for (int j = 1; j < replicas.size(); j++) {
+      if (numCounts[j] != numCounts[j - 1])
+        fail("Mismatch in counts between replicas");  // nocommit improve this!
+      if (numCounts[j] == 0 && expectDocs)
+        fail("Expected docs on shard " + shard.getName() + " but found none");
+    }
   }
+
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/ShardSplitTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/ShardSplitTest.java b/solr/core/src/test/org/apache/solr/cloud/ShardSplitTest.java
index 7388476..72f0694 100644
--- a/solr/core/src/test/org/apache/solr/cloud/ShardSplitTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/ShardSplitTest.java
@@ -93,7 +93,8 @@ public class ShardSplitTest extends BasicDistributedZkTest {
 
     if (usually()) {
       log.info("Using legacyCloud=false for cluster");
-      CollectionsAPIDistributedZkTest.setClusterProp(cloudClient, "legacyCloud", "false");
+      CollectionAdminRequest.setClusterProperty(ZkStateReader.LEGACY_CLOUD, "false")
+          .process(cloudClient);
     }
     incompleteOrOverlappingCustomRangeTest();
     splitByUniqueKeyTest();
@@ -516,7 +517,8 @@ public class ShardSplitTest extends BasicDistributedZkTest {
 
     if (usually()) {
       log.info("Using legacyCloud=false for cluster");
-      CollectionsAPIDistributedZkTest.setClusterProp(cloudClient, "legacyCloud", "false");
+      CollectionAdminRequest.setClusterProperty(ZkStateReader.LEGACY_CLOUD, "false")
+          .process(cloudClient);
     }
 
     log.info("Starting testSplitShardWithRule");

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/TestClusterProperties.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/TestClusterProperties.java b/solr/core/src/test/org/apache/solr/cloud/TestClusterProperties.java
new file mode 100644
index 0000000..c5575af
--- /dev/null
+++ b/solr/core/src/test/org/apache/solr/cloud/TestClusterProperties.java
@@ -0,0 +1,45 @@
+/*
+ * 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.cloud;
+
+import org.apache.solr.client.solrj.request.CollectionAdminRequest;
+import org.apache.solr.common.cloud.ClusterProperties;
+import org.apache.solr.common.cloud.ZkStateReader;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class TestClusterProperties extends SolrCloudTestCase {
+
+  @BeforeClass
+  public static void setupCluster() throws Exception {
+    configureCluster(1).configure();
+  }
+
+  @Test
+  public void testClusterProperties() throws Exception {
+    ClusterProperties props = new ClusterProperties(zkClient());
+    assertEquals("false", props.getClusterProperty(ZkStateReader.LEGACY_CLOUD, "false"));
+
+    CollectionAdminRequest.setClusterProperty(ZkStateReader.LEGACY_CLOUD, "true").process(cluster.getSolrClient());
+    assertEquals("true", props.getClusterProperty(ZkStateReader.LEGACY_CLOUD, "false"));
+
+    CollectionAdminRequest.setClusterProperty(ZkStateReader.LEGACY_CLOUD, "false").process(cluster.getSolrClient());
+    assertEquals("false", props.getClusterProperty(ZkStateReader.LEGACY_CLOUD, "true"));
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/TestDeleteCollectionOnDownNodes.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/TestDeleteCollectionOnDownNodes.java b/solr/core/src/test/org/apache/solr/cloud/TestDeleteCollectionOnDownNodes.java
new file mode 100644
index 0000000..33820b3
--- /dev/null
+++ b/solr/core/src/test/org/apache/solr/cloud/TestDeleteCollectionOnDownNodes.java
@@ -0,0 +1,65 @@
+/*
+ * 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.cloud;
+
+import org.apache.solr.client.solrj.request.CollectionAdminRequest;
+import org.apache.solr.common.cloud.Slice;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class TestDeleteCollectionOnDownNodes extends SolrCloudTestCase {
+
+  @BeforeClass
+  public static void setupCluster() throws Exception {
+    configureCluster(4)
+        .addConfig("conf", configset("cloud-minimal"))
+        .addConfig("conf2", configset("cloud-minimal"))
+        .configure();
+  }
+
+  @Test
+  public void deleteCollectionWithDownNodes() throws Exception {
+
+    CollectionAdminRequest.createCollection("halfdeletedcollection2", "conf", 4, 2)
+        .setMaxShardsPerNode(3)
+        .process(cluster.getSolrClient());
+
+    // stop a couple nodes
+    cluster.stopJettySolrRunner(cluster.getRandomJetty(random()));
+    cluster.stopJettySolrRunner(cluster.getRandomJetty(random()));
+
+    // wait for leaders to settle out
+    waitForState("Timed out waiting for leader elections", "halfdeletedcollection2", (n, c) -> {
+      for (Slice slice : c) {
+        if (slice.getLeader() == null)
+          return false;
+        if (slice.getLeader().isActive(n) == false)
+          return false;
+      }
+      return true;
+    });
+
+    // delete the collection
+    CollectionAdminRequest.deleteCollection("halfdeletedcollection2").process(cluster.getSolrClient());
+    waitForState("Timed out waiting for collection to be deleted", "halfdeletedcollection2", (n, c) -> c == null);
+
+    assertFalse("Still found collection that should be gone",
+        cluster.getSolrClient().getZkStateReader().getClusterState().hasCollection("halfdeletedcollection2"));
+
+  }
+}

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsCollectionsAPIDistributedZkTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsCollectionsAPIDistributedZkTest.java b/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsCollectionsAPIDistributedZkTest.java
index 3b02477..55fb6cd 100644
--- a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsCollectionsAPIDistributedZkTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsCollectionsAPIDistributedZkTest.java
@@ -16,48 +16,41 @@
  */
 package org.apache.solr.cloud.hdfs;
 
-import java.io.IOException;
-
+import com.carrotsearch.randomizedtesting.annotations.Nightly;
+import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.lucene.util.LuceneTestCase.Slow;
 import org.apache.solr.cloud.CollectionsAPIDistributedZkTest;
-import org.apache.solr.update.HdfsUpdateLog;
+import org.apache.solr.common.cloud.ZkConfigManager;
 import org.apache.solr.util.BadHdfsThreadsFilter;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 
-import com.carrotsearch.randomizedtesting.annotations.Nightly;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
-
 @Slow
 @Nightly
 @ThreadLeakFilters(defaultFilters = true, filters = {
     BadHdfsThreadsFilter.class // hdfs currently leaks thread(s)
 })
 public class HdfsCollectionsAPIDistributedZkTest extends CollectionsAPIDistributedZkTest {
+
   private static MiniDFSCluster dfsCluster;
-  private static long initialFailLogsCount;
-  
+
   @BeforeClass
   public static void setupClass() throws Exception {
     dfsCluster = HdfsTestUtil.setupClass(createTempDir().toFile().getAbsolutePath());
-    System.setProperty("solr.hdfs.blockcache.enabled", "false");
-    initialFailLogsCount = HdfsUpdateLog.INIT_FAILED_LOGS_COUNT.get();
+    System.setProperty("solr.hdfs.blockcache.blocksperbank", "2048");
+
+    ZkConfigManager configManager = new ZkConfigManager(zkClient());
+    configManager.uploadConfigDir(configset("cloud-hdfs"), "conf");
+
+    System.setProperty("solr.hdfs.home", HdfsTestUtil.getDataDir(dfsCluster, "data"));
   }
-  
+
   @AfterClass
   public static void teardownClass() throws Exception {
-    // there should be no new fails from this test
-    assertEquals(0, HdfsUpdateLog.INIT_FAILED_LOGS_COUNT.get() - initialFailLogsCount);
+    cluster.shutdown(); // need to close before the MiniDFSCluster
     HdfsTestUtil.teardownClass(dfsCluster);
-    System.clearProperty("solr.hdfs.blockcache.enabled");
     dfsCluster = null;
   }
 
-  
-  @Override
-  protected String getDataDir(String dataDir) throws IOException {
-    return HdfsTestUtil.getDataDir(dfsCluster, dataDir);
-  }
-
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsRecoveryZkTest.java
----------------------------------------------------------------------
diff --git a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsRecoveryZkTest.java b/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsRecoveryZkTest.java
index a8e6fb0..2dfc32b 100644
--- a/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsRecoveryZkTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/hdfs/HdfsRecoveryZkTest.java
@@ -16,42 +16,40 @@
  */
 package org.apache.solr.cloud.hdfs;
 
-import java.io.IOException;
-
+import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.lucene.util.LuceneTestCase.Slow;
 import org.apache.solr.cloud.RecoveryZkTest;
+import org.apache.solr.common.cloud.ZkConfigManager;
 import org.apache.solr.util.BadHdfsThreadsFilter;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 
-import com.carrotsearch.randomizedtesting.annotations.Nightly;
-import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
-
 @Slow
-@Nightly
+//@Nightly
 @ThreadLeakFilters(defaultFilters = true, filters = {
     BadHdfsThreadsFilter.class // hdfs currently leaks thread(s)
 })
 public class HdfsRecoveryZkTest extends RecoveryZkTest {
+
   private static MiniDFSCluster dfsCluster;
   
   @BeforeClass
   public static void setupClass() throws Exception {
     dfsCluster = HdfsTestUtil.setupClass(createTempDir().toFile().getAbsolutePath());
     System.setProperty("solr.hdfs.blockcache.blocksperbank", "2048");
+
+    ZkConfigManager configManager = new ZkConfigManager(zkClient());
+    configManager.uploadConfigDir(configset("cloud-hdfs"), "conf");
+
+    System.setProperty("solr.hdfs.home", HdfsTestUtil.getDataDir(dfsCluster, "data"));
   }
   
   @AfterClass
   public static void teardownClass() throws Exception {
+    cluster.shutdown(); // need to close before the MiniDFSCluster
     HdfsTestUtil.teardownClass(dfsCluster);
     dfsCluster = null;
   }
 
-  
-  @Override
-  protected String getDataDir(String dataDir) throws IOException {
-    return HdfsTestUtil.getDataDir(dfsCluster, dataDir);
-  }
-
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/solrj/src/java/org/apache/solr/client/solrj/request/CollectionAdminRequest.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/request/CollectionAdminRequest.java b/solr/solrj/src/java/org/apache/solr/client/solrj/request/CollectionAdminRequest.java
index 72406ef..92ea99b 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/request/CollectionAdminRequest.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/request/CollectionAdminRequest.java
@@ -191,6 +191,10 @@ public abstract class CollectionAdminRequest<T extends CollectionAdminResponse>
     @Deprecated
     public abstract AsyncCollectionSpecificAdminRequest setCollectionName(String collection);
 
+    public String getCollectionName() {
+      return collection;
+    }
+
     @Override
     public SolrParams getParams() {
       ModifiableSolrParams params = new ModifiableSolrParams(super.getParams());
@@ -1601,6 +1605,13 @@ public abstract class CollectionAdminRequest<T extends CollectionAdminResponse>
       return this;
     }
 
+    public AddReplica withProperty(String key, String value) {
+      if (this.properties == null)
+        this.properties = new Properties();
+      this.properties.setProperty(key, value);
+      return this;
+    }
+
     public String getNode() {
       return node;
     }
@@ -2178,8 +2189,9 @@ public abstract class CollectionAdminRequest<T extends CollectionAdminResponse>
   /**
    * Returns a SolrRequest to get a list of collections in the cluster
    */
-  public static List listCollections() {
-    return new List();
+  public static java.util.List<String> listCollections(SolrClient client) throws IOException, SolrServerException {
+    CollectionAdminResponse resp = new List().process(client);
+    return (java.util.List<String>) resp.getResponse().get("collections");
   }
 
   // LIST request

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/solrj/src/java/org/apache/solr/client/solrj/request/UpdateRequest.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/request/UpdateRequest.java b/solr/solrj/src/java/org/apache/solr/client/solrj/request/UpdateRequest.java
index aec6e22..e7ca0fa 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/request/UpdateRequest.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/request/UpdateRequest.java
@@ -218,6 +218,13 @@ public class UpdateRequest extends AbstractUpdateRequest {
     return this;
   }
 
+  public UpdateRequest withRoute(String route) {
+    if (params == null)
+      params = new ModifiableSolrParams();
+    params.set(ROUTE, route);
+    return this;
+  }
+
   public UpdateResponse commit(SolrClient client, String collection) throws IOException, SolrServerException {
     if (params == null)
       params = new ModifiableSolrParams();
@@ -524,4 +531,5 @@ public class UpdateRequest extends AbstractUpdateRequest {
   public void lastDocInBatch() {
     isLastDocInBatch = true;
   }
+
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/solrj/src/java/org/apache/solr/common/cloud/Slice.java
----------------------------------------------------------------------
diff --git a/solr/solrj/src/java/org/apache/solr/common/cloud/Slice.java b/solr/solrj/src/java/org/apache/solr/common/cloud/Slice.java
index e4be009..bd3bafd 100644
--- a/solr/solrj/src/java/org/apache/solr/common/cloud/Slice.java
+++ b/solr/solrj/src/java/org/apache/solr/common/cloud/Slice.java
@@ -21,8 +21,11 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
 
 import org.noggit.JSONUtil;
 import org.noggit.JSONWriter;
@@ -219,6 +222,13 @@ public class Slice extends ZkNodeProps implements Iterable<Replica> {
   }
 
   /**
+   * Gets all replicas that match a predicate
+   */
+  public List<Replica> getReplicas(Predicate<Replica> pred) {
+    return replicas.values().stream().filter(pred).collect(Collectors.toList());
+  }
+
+  /**
    * Get the map of coreNodeName to replicas for this slice.
    */
   public Map<String, Replica> getReplicasMap() {

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/test-framework/src/java/org/apache/solr/cloud/MiniSolrCloudCluster.java
----------------------------------------------------------------------
diff --git a/solr/test-framework/src/java/org/apache/solr/cloud/MiniSolrCloudCluster.java b/solr/test-framework/src/java/org/apache/solr/cloud/MiniSolrCloudCluster.java
index 3c5aa16..2c1ae3b 100644
--- a/solr/test-framework/src/java/org/apache/solr/cloud/MiniSolrCloudCluster.java
+++ b/solr/test-framework/src/java/org/apache/solr/cloud/MiniSolrCloudCluster.java
@@ -88,7 +88,7 @@ public class MiniSolrCloudCluster {
       "  \n" +
       "</solr>\n";
 
-  private final ZkTestServer zkServer;
+  private ZkTestServer zkServer; // non-final due to injectChaos()
   private final boolean externalZkServer;
   private final List<JettySolrRunner> jettys = new CopyOnWriteArrayList<>();
   private final Path baseDir;
@@ -328,6 +328,10 @@ public class MiniSolrCloudCluster {
         .build());
   }
 
+  public JettySolrRunner getJettySolrRunner(int index) {
+    return jettys.get(index);
+  }
+
   /**
    * Start a new Solr instance on a particular servlet context
    *
@@ -440,6 +444,10 @@ public class MiniSolrCloudCluster {
   public CloudSolrClient getSolrClient() {
     return solrClient;
   }
+
+  public SolrZkClient getZkClient() {
+    return solrClient.getZkStateReader().getZkClient();
+  }
   
   protected CloudSolrClient buildSolrClient() {
     return new Builder()
@@ -497,4 +505,29 @@ public class MiniSolrCloudCluster {
       log.info("Expired zookeeper session {} from node {}", sessionId, jetty.getBaseUrl());
     }
   }
+
+  public void injectChaos(Random random) throws Exception {
+
+    // sometimes we restart one of the jetty nodes
+    if (random.nextBoolean()) {
+      JettySolrRunner jetty = jettys.get(random.nextInt(jettys.size()));
+      ChaosMonkey.stop(jetty);
+      log.info("============ Restarting jetty");
+      ChaosMonkey.start(jetty);
+    }
+
+    // sometimes we restart zookeeper
+    if (random.nextBoolean()) {
+      zkServer.shutdown();
+      log.info("============ Restarting zookeeper");
+      zkServer = new ZkTestServer(zkServer.getZkDir(), zkServer.getPort());
+      zkServer.run();
+    }
+
+    // sometimes we cause a connection loss - sometimes it will hit the overseer
+    if (random.nextBoolean()) {
+      JettySolrRunner jetty = jettys.get(random.nextInt(jettys.size()));
+      ChaosMonkey.causeConnectionLoss(jetty);
+    }
+  }
 }

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/f56d111a/solr/test-framework/src/java/org/apache/solr/cloud/SolrCloudTestCase.java
----------------------------------------------------------------------
diff --git a/solr/test-framework/src/java/org/apache/solr/cloud/SolrCloudTestCase.java b/solr/test-framework/src/java/org/apache/solr/cloud/SolrCloudTestCase.java
index b64b1ce..77a527e 100644
--- a/solr/test-framework/src/java/org/apache/solr/cloud/SolrCloudTestCase.java
+++ b/solr/test-framework/src/java/org/apache/solr/cloud/SolrCloudTestCase.java
@@ -44,6 +44,7 @@ import org.apache.solr.common.cloud.DocCollection;
 import org.apache.solr.common.cloud.Replica;
 import org.apache.solr.common.cloud.Slice;
 import org.apache.solr.common.cloud.SolrZkClient;
+import org.apache.solr.common.cloud.ZkStateReader;
 import org.junit.AfterClass;
 import org.junit.Before;
 
@@ -174,7 +175,10 @@ public class SolrCloudTestCase extends SolrTestCaseJ4 {
   /** The cluster */
   protected static MiniSolrCloudCluster cluster;
 
-  protected SolrZkClient zkClient() {
+  protected static SolrZkClient zkClient() {
+    ZkStateReader reader = cluster.getSolrClient().getZkStateReader();
+    if (reader == null)
+      cluster.getSolrClient().connect();
     return cluster.getSolrClient().getZkStateReader().getZkClient();
   }