private void waitTillNodesActive() throws Exception {
for (int i = 0; i < 60; i++) {
Thread.sleep(3000);
ZkStateReader zkStateReader = cloudClient.getZkStateReader();
ClusterState clusterState = zkStateReader.getClusterState();
DocCollection collection1 = clusterState.getCollection("collection1");
Slice slice = collection1.getSlice("shard1");
Collection<Replica> replicas = slice.getReplicas();
boolean allActive = true;
Collection<String> nodesDownNames =
nodesDown.stream().map(n -> n.coreNodeName).collect(Collectors.toList());
Collection<Replica> replicasToCheck =
replicas
.stream()
.filter(r -> !nodesDownNames.contains(r.getName()))
.collect(Collectors.toList());
for (Replica replica : replicasToCheck) {
if (!clusterState.liveNodesContain(replica.getNodeName())
|| replica.getState() != Replica.State.ACTIVE) {
allActive = false;
break;
}
}
if (allActive) {
return;
}
}
printLayout();
fail("timeout waiting to see all nodes active");
}
private String getRemotCoreUrl(String collectionName, String origCorename) {
ClusterState clusterState = cores.getZkController().getClusterState();
Collection<Slice> slices = clusterState.getActiveSlices(collectionName);
boolean byCoreName = false;
if (slices == null) {
slices = new ArrayList<>();
// look by core name
byCoreName = true;
getSlicesForCollections(clusterState, slices, true);
if (slices.isEmpty()) {
getSlicesForCollections(clusterState, slices, false);
}
}
if (slices.isEmpty()) {
return null;
}
if (collectionsList == null) collectionsList = new ArrayList<>();
collectionsList.add(collectionName);
String coreUrl =
getCoreUrl(collectionName, origCorename, clusterState, slices, byCoreName, true);
if (coreUrl == null) {
coreUrl = getCoreUrl(collectionName, origCorename, clusterState, slices, byCoreName, false);
}
return coreUrl;
}
private void collectStartTimes(String collectionName, Map<String, Long> urlToTime)
throws SolrServerException, IOException {
ClusterState clusterState = getCommonCloudSolrServer().getZkStateReader().getClusterState();
// Map<String,DocCollection> collections = clusterState.getCollectionStates();
if (clusterState.hasCollection(collectionName)) {
Map<String, Slice> slices = clusterState.getSlicesMap(collectionName);
Iterator<Entry<String, Slice>> it = slices.entrySet().iterator();
while (it.hasNext()) {
Entry<String, Slice> sliceEntry = it.next();
Map<String, Replica> sliceShards = sliceEntry.getValue().getReplicasMap();
Iterator<Entry<String, Replica>> shardIt = sliceShards.entrySet().iterator();
while (shardIt.hasNext()) {
Entry<String, Replica> shardEntry = shardIt.next();
ZkCoreNodeProps coreProps = new ZkCoreNodeProps(shardEntry.getValue());
HttpSolrServer server = new HttpSolrServer(coreProps.getBaseUrl());
CoreAdminResponse mcr;
try {
mcr = CoreAdminRequest.getStatus(coreProps.getCoreName(), server);
} finally {
server.shutdown();
}
long before = mcr.getStartTime(coreProps.getCoreName()).getTime();
urlToTime.put(coreProps.getCoreUrl(), before);
}
}
} else {
throw new IllegalArgumentException(
"Could not find collection in :" + clusterState.getCollections());
}
}
private List<Node> getCollectionUrls(
SolrQueryRequest req, String collection, String shardZkNodeName) {
ClusterState clusterState =
req.getCore().getCoreDescriptor().getCoreContainer().getZkController().getClusterState();
List<Node> urls = new ArrayList<Node>();
Map<String, Slice> slices = clusterState.getSlices(collection);
if (slices == null) {
throw new ZooKeeperException(
ErrorCode.BAD_REQUEST, "Could not find collection in zk: " + clusterState);
}
for (Map.Entry<String, Slice> sliceEntry : slices.entrySet()) {
Slice replicas = slices.get(sliceEntry.getKey());
Map<String, Replica> shardMap = replicas.getReplicasMap();
for (Entry<String, Replica> entry : shardMap.entrySet()) {
ZkCoreNodeProps nodeProps = new ZkCoreNodeProps(entry.getValue());
if (clusterState.liveNodesContain(nodeProps.getNodeName())
&& !entry.getKey().equals(shardZkNodeName)) {
urls.add(new StdNode(nodeProps));
}
}
}
if (urls.size() == 0) {
return null;
}
return urls;
}
private SolrCore getCoreByCollection(String collectionName) {
ZkStateReader zkStateReader = cores.getZkController().getZkStateReader();
ClusterState clusterState = zkStateReader.getClusterState();
DocCollection collection = clusterState.getCollectionOrNull(collectionName);
if (collection == null) {
return null;
}
Map<String, Slice> slices = collection.getActiveSlicesMap();
if (slices == null) {
return null;
}
Set<String> liveNodes = clusterState.getLiveNodes();
// look for a core on this node
Set<Map.Entry<String, Slice>> entries = slices.entrySet();
SolrCore core = null;
// Hitting the leaders is useful when it's an update request.
// For queries it doesn't matter and hence we don't distinguish here.
for (Map.Entry<String, Slice> entry : entries) {
// first see if we have the leader
Replica leaderProps = collection.getLeader(entry.getKey());
if (leaderProps != null
&& liveNodes.contains(leaderProps.getNodeName())
&& leaderProps.getState() == Replica.State.ACTIVE) {
core = checkProps(leaderProps);
if (core != null) {
return core;
}
}
// check everyone then
Map<String, Replica> shards = entry.getValue().getReplicasMap();
Set<Map.Entry<String, Replica>> shardEntries = shards.entrySet();
for (Map.Entry<String, Replica> shardEntry : shardEntries) {
Replica zkProps = shardEntry.getValue();
if (liveNodes.contains(zkProps.getNodeName())
&& zkProps.getState() == Replica.State.ACTIVE) {
core = checkProps(zkProps);
if (core != null) {
return core;
}
}
}
}
return null;
}
private void getSlicesForCollections(
ClusterState clusterState, Collection<Slice> slices, boolean activeSlices) {
if (activeSlices) {
for (Map.Entry<String, DocCollection> entry : clusterState.getCollectionsMap().entrySet()) {
final Collection<Slice> activeCollectionSlices = entry.getValue().getActiveSlices();
if (activeCollectionSlices != null) {
slices.addAll(activeCollectionSlices);
}
}
} else {
for (Map.Entry<String, DocCollection> entry : clusterState.getCollectionsMap().entrySet()) {
final Collection<Slice> collectionSlices = entry.getValue().getSlices();
if (collectionSlices != null) {
slices.addAll(collectionSlices);
}
}
}
}
protected void constructStreams() throws IOException {
try {
Object pushStream = ((Expressible) tupleStream).toExpression(streamFactory);
ZkStateReader zkStateReader = cloudSolrClient.getZkStateReader();
ClusterState clusterState = zkStateReader.getClusterState();
Set<String> liveNodes = clusterState.getLiveNodes();
Collection<Slice> slices = clusterState.getActiveSlices(this.collection);
List<Replica> shuffler = new ArrayList();
for (Slice slice : slices) {
Collection<Replica> replicas = slice.getReplicas();
for (Replica replica : replicas) {
if (replica.getState() == Replica.State.ACTIVE
&& liveNodes.contains(replica.getNodeName())) shuffler.add(replica);
}
}
if (workers > shuffler.size()) {
throw new IOException("Number of workers exceeds nodes in the worker collection");
}
Collections.shuffle(shuffler, new Random());
for (int w = 0; w < workers; w++) {
HashMap params = new HashMap();
params.put("distrib", "false"); // We are the aggregator.
params.put("numWorkers", workers);
params.put("workerID", w);
params.put("expr", pushStream);
params.put("qt", "/stream");
Replica rep = shuffler.get(w);
ZkCoreNodeProps zkProps = new ZkCoreNodeProps(rep);
String url = zkProps.getCoreUrl();
SolrStream solrStream = new SolrStream(url, params);
solrStreams.add(solrStream);
}
assert (solrStreams.size() == workers);
} catch (Exception e) {
throw new IOException(e);
}
}
private void checkForMissingCollection(String collectionName) throws Exception {
// check for a collection - we poll the state
long timeoutAt = System.currentTimeMillis() + 45000;
boolean found = true;
while (System.currentTimeMillis() < timeoutAt) {
getCommonCloudSolrServer().getZkStateReader().updateClusterState(true);
ClusterState clusterState = getCommonCloudSolrServer().getZkStateReader().getClusterState();
// Map<String,DocCollection> collections = clusterState
// .getCollectionStates();
if (!clusterState.hasCollection(collectionName)) {
found = false;
break;
}
Thread.sleep(100);
}
if (found) {
fail("Found collection that should be gone " + collectionName);
}
}
protected List<String> buildShardList(CloudSolrClient cloudSolrServer) {
ZkStateReader zkStateReader = cloudSolrServer.getZkStateReader();
ClusterState clusterState = zkStateReader.getClusterState();
String[] collections = null;
if (clusterState.hasCollection(collection)) {
collections = new String[] {collection};
} else {
// might be a collection alias?
Aliases aliases = zkStateReader.getAliases();
String aliasedCollections = aliases.getCollectionAlias(collection);
if (aliasedCollections == null)
throw new IllegalArgumentException("Collection " + collection + " not found!");
collections = aliasedCollections.split(",");
}
Set<String> liveNodes = clusterState.getLiveNodes();
Random random = new Random(5150);
List<String> shards = new ArrayList<String>();
for (String coll : collections) {
for (Slice slice : clusterState.getSlices(coll)) {
List<String> replicas = new ArrayList<String>();
for (Replica r : slice.getReplicas()) {
ZkCoreNodeProps replicaCoreProps = new ZkCoreNodeProps(r);
if (liveNodes.contains(replicaCoreProps.getNodeName()))
replicas.add(replicaCoreProps.getCoreUrl());
}
int numReplicas = replicas.size();
if (numReplicas == 0)
throw new IllegalStateException(
"Shard " + slice.getName() + " does not have any active replicas!");
String replicaUrl =
(numReplicas == 1) ? replicas.get(0) : replicas.get(random.nextInt(replicas.size()));
shards.add(replicaUrl);
}
}
return shards;
}
/**
* Walks the NamedList response after performing an update request looking for the replication
* factor that was achieved in each shard involved in the request. For single doc updates, there
* will be only one shard in the return value.
*/
@SuppressWarnings("rawtypes")
public Map<String, Integer> getShardReplicationFactor(String collection, NamedList resp) {
connect();
Map<String, Integer> results = new HashMap<String, Integer>();
if (resp instanceof CloudSolrServer.RouteResponse) {
NamedList routes = ((CloudSolrServer.RouteResponse) resp).getRouteResponses();
ClusterState clusterState = zkStateReader.getClusterState();
Map<String, String> leaders = new HashMap<String, String>();
for (Slice slice : clusterState.getActiveSlices(collection)) {
Replica leader = slice.getLeader();
if (leader != null) {
ZkCoreNodeProps zkProps = new ZkCoreNodeProps(leader);
String leaderUrl = zkProps.getBaseUrl() + "/" + zkProps.getCoreName();
leaders.put(leaderUrl, slice.getName());
String altLeaderUrl = zkProps.getBaseUrl() + "/" + collection;
leaders.put(altLeaderUrl, slice.getName());
}
}
Iterator<Map.Entry<String, Object>> routeIter = routes.iterator();
while (routeIter.hasNext()) {
Map.Entry<String, Object> next = routeIter.next();
String host = next.getKey();
NamedList hostResp = (NamedList) next.getValue();
Integer rf =
(Integer) ((NamedList) hostResp.get("responseHeader")).get(UpdateRequest.REPFACT);
if (rf != null) {
String shard = leaders.get(host);
if (shard == null) {
if (host.endsWith("/")) shard = leaders.get(host.substring(0, host.length() - 1));
if (shard == null) {
shard = host;
}
}
results.put(shard, rf);
}
}
}
return results;
}
@BeforeClass
public static void setupCluster() throws Exception {
final Path configDir = Paths.get(TEST_HOME(), "collection1", "conf");
String configName = "solrCloudCollectionConfig";
int nodeCount = 5;
configureCluster(nodeCount).addConfig(configName, configDir).configure();
Map<String, String> collectionProperties = new HashMap<>();
collectionProperties.put("config", "solrconfig-tlog.xml");
collectionProperties.put("schema", "schema.xml");
// create a collection holding data for the "to" side of the JOIN
int shards = 2;
int replicas = 2;
CollectionAdminRequest.createCollection(toColl, configName, shards, replicas)
.setProperties(collectionProperties)
.process(cluster.getSolrClient());
// get the set of nodes where replicas for the "to" collection exist
Set<String> nodeSet = new HashSet<>();
ZkStateReader zkStateReader = cluster.getSolrClient().getZkStateReader();
ClusterState cs = zkStateReader.getClusterState();
for (Slice slice : cs.getCollection(toColl).getActiveSlices())
for (Replica replica : slice.getReplicas()) nodeSet.add(replica.getNodeName());
assertTrue(nodeSet.size() > 0);
// deploy the "from" collection to all nodes where the "to" collection exists
CollectionAdminRequest.createCollection(fromColl, configName, 1, 4)
.setCreateNodeSet(StringUtils.join(nodeSet, ","))
.setProperties(collectionProperties)
.process(cluster.getSolrClient());
toDocId = indexDoc(toColl, 1001, "a", null, "b");
indexDoc(fromColl, 2001, "a", "c", null);
Thread.sleep(1000); // so the commits fire
}
protected DocCollection getDocCollection(ClusterState clusterState, String collection)
throws SolrException {
ExpiringCachedDocCollection cachedState =
collectionStateCache != null ? collectionStateCache.get(collection) : null;
if (cachedState != null && cachedState.cached != null) {
return cachedState.cached;
}
DocCollection col = clusterState.getCollectionOrNull(collection);
if (col == null) return null;
if (col.getStateFormat() > 1)
collectionStateCache.put(collection, new ExpiringCachedDocCollection(col));
return col;
}
private String getUrlFromZk(String collection) {
ClusterState clusterState = getCommonCloudSolrServer().getZkStateReader().getClusterState();
Map<String, Slice> slices = clusterState.getSlicesMap(collection);
if (slices == null) {
throw new SolrException(ErrorCode.BAD_REQUEST, "Could not find collection:" + collection);
}
for (Map.Entry<String, Slice> entry : slices.entrySet()) {
Slice slice = entry.getValue();
Map<String, Replica> shards = slice.getReplicasMap();
Set<Map.Entry<String, Replica>> shardEntries = shards.entrySet();
for (Map.Entry<String, Replica> shardEntry : shardEntries) {
final ZkNodeProps node = shardEntry.getValue();
if (clusterState.liveNodesContain(node.getStr(ZkStateReader.NODE_NAME_PROP))) {
return ZkCoreNodeProps.getCoreUrl(
node.getStr(ZkStateReader.BASE_URL_PROP),
collection); // new ZkCoreNodeProps(node).getCoreUrl();
}
}
}
throw new RuntimeException("Could not find a live node for collection:" + collection);
}
private String getCoreUrl(
String collectionName,
String origCorename,
ClusterState clusterState,
Collection<Slice> slices,
boolean byCoreName,
boolean activeReplicas) {
String coreUrl;
Set<String> liveNodes = clusterState.getLiveNodes();
List<Slice> randomizedSlices = new ArrayList<>(slices.size());
randomizedSlices.addAll(slices);
Collections.shuffle(randomizedSlices, random);
for (Slice slice : randomizedSlices) {
List<Replica> randomizedReplicas = new ArrayList<>();
randomizedReplicas.addAll(slice.getReplicas());
Collections.shuffle(randomizedReplicas, random);
for (Replica replica : randomizedReplicas) {
if (!activeReplicas
|| (liveNodes.contains(replica.getNodeName())
&& replica.getState() == Replica.State.ACTIVE)) {
if (byCoreName && !collectionName.equals(replica.getStr(CORE_NAME_PROP))) {
// if it's by core name, make sure they match
continue;
}
if (replica.getStr(BASE_URL_PROP).equals(cores.getZkController().getBaseUrl())) {
// don't count a local core
continue;
}
if (origCorename != null) {
coreUrl = replica.getStr(BASE_URL_PROP) + "/" + origCorename;
} else {
coreUrl = replica.getCoreUrl();
if (coreUrl.endsWith("/")) {
coreUrl = coreUrl.substring(0, coreUrl.length() - 1);
}
}
return coreUrl;
}
}
}
return null;
}
public static String assignNode(String collection, ClusterState state) {
Map<String, Slice> sliceMap = state.getSlicesMap(collection);
if (sliceMap == null) {
return "core_node1";
}
int max = 0;
for (Slice slice : sliceMap.values()) {
for (Replica replica : slice.getReplicas()) {
Matcher m = COUNT.matcher(replica.getName());
if (m.matches()) {
max = Math.max(max, Integer.parseInt(m.group(1)));
}
}
}
return "core_node" + (max + 1);
}
/**
* Assign a new unique id up to slices count - then add replicas evenly.
*
* @return the assigned shard id
*/
public static String assignShard(String collection, ClusterState state, Integer numShards) {
if (numShards == null) {
numShards = 1;
}
String returnShardId = null;
Map<String, Slice> sliceMap = state.getActiveSlicesMap(collection);
// TODO: now that we create shards ahead of time, is this code needed? Esp since hash ranges
// aren't assigned when creating via this method?
if (sliceMap == null) {
return "shard1";
}
List<String> shardIdNames = new ArrayList<String>(sliceMap.keySet());
if (shardIdNames.size() < numShards) {
return "shard" + (shardIdNames.size() + 1);
}
// TODO: don't need to sort to find shard with fewest replicas!
// else figure out which shard needs more replicas
final Map<String, Integer> map = new HashMap<String, Integer>();
for (String shardId : shardIdNames) {
int cnt = sliceMap.get(shardId).getReplicasMap().size();
map.put(shardId, cnt);
}
Collections.sort(
shardIdNames,
new Comparator<String>() {
@Override
public int compare(String o1, String o2) {
Integer one = map.get(o1);
Integer two = map.get(o2);
return one.compareTo(two);
}
});
returnShardId = shardIdNames.get(0);
return returnShardId;
}
private Set<String> getCollectionList(ClusterState clusterState, String collection) {
// Extract each comma separated collection name and store in a List.
List<String> rawCollectionsList = StrUtils.splitSmart(collection, ",", true);
Set<String> collectionsList = new HashSet<>();
// validate collections
for (String collectionName : rawCollectionsList) {
if (!clusterState.getCollections().contains(collectionName)) {
Aliases aliases = zkStateReader.getAliases();
String alias = aliases.getCollectionAlias(collectionName);
if (alias != null) {
List<String> aliasList = StrUtils.splitSmart(alias, ",", true);
collectionsList.addAll(aliasList);
continue;
}
throw new SolrException(ErrorCode.BAD_REQUEST, "Collection not found: " + collectionName);
}
collectionsList.add(collectionName);
}
return collectionsList;
}
public int createSubRequests(ResponseBuilder rb) throws IOException {
SolrParams params = rb.req.getParams();
String id1[] = params.getParams("id");
String ids[] = params.getParams("ids");
if (id1 == null && ids == null) {
return ResponseBuilder.STAGE_DONE;
}
List<String> allIds = new ArrayList<String>();
if (id1 != null) {
for (String s : id1) {
allIds.add(s);
}
}
if (ids != null) {
for (String s : ids) {
allIds.addAll(StrUtils.splitSmart(s, ",", true));
}
}
// TODO: handle collection=...?
ZkController zkController =
rb.req.getCore().getCoreDescriptor().getCoreContainer().getZkController();
// if shards=... then use that
if (zkController != null && params.get("shards") == null) {
CloudDescriptor cloudDescriptor = rb.req.getCore().getCoreDescriptor().getCloudDescriptor();
String collection = cloudDescriptor.getCollectionName();
ClusterState clusterState = zkController.getClusterState();
DocCollection coll = clusterState.getCollection(collection);
Map<String, List<String>> sliceToId = new HashMap<String, List<String>>();
for (String id : allIds) {
Slice slice = coll.getRouter().getTargetSlice(id, null, params, coll);
List<String> idsForShard = sliceToId.get(slice.getName());
if (idsForShard == null) {
idsForShard = new ArrayList<String>(2);
sliceToId.put(slice.getName(), idsForShard);
}
idsForShard.add(id);
}
for (Map.Entry<String, List<String>> entry : sliceToId.entrySet()) {
String shard = entry.getKey();
String shardIdList = StrUtils.join(entry.getValue(), ',');
ShardRequest sreq = new ShardRequest();
sreq.purpose = 1;
// sreq.shards = new String[]{shard}; // TODO: would be nice if this would work...
sreq.shards = sliceToShards(rb, collection, shard);
sreq.actualShards = sreq.shards;
sreq.params = new ModifiableSolrParams();
sreq.params.set(
ShardParams.SHARDS_QT,
"/get"); // TODO: how to avoid hardcoding this and hit the same handler?
sreq.params.set("distrib", false);
sreq.params.set("ids", shardIdList);
rb.addRequest(this, sreq);
}
} else {
String shardIdList = StrUtils.join(allIds, ',');
ShardRequest sreq = new ShardRequest();
sreq.purpose = 1;
sreq.shards = null; // ALL
sreq.actualShards = sreq.shards;
sreq.params = new ModifiableSolrParams();
sreq.params.set(
ShardParams.SHARDS_QT,
"/get"); // TODO: how to avoid hardcoding this and hit the same handler?
sreq.params.set("distrib", false);
sreq.params.set("ids", shardIdList);
rb.addRequest(this, sreq);
}
return ResponseBuilder.STAGE_DONE;
}
public static ArrayList<Node> getNodesForNewShard(
ClusterState clusterState,
String collectionName,
int numSlices,
int maxShardsPerNode,
int repFactor,
String createNodeSetStr) {
List<String> createNodeList =
createNodeSetStr == null ? null : StrUtils.splitSmart(createNodeSetStr, ",", true);
Set<String> nodes = clusterState.getLiveNodes();
List<String> nodeList = new ArrayList<String>(nodes.size());
nodeList.addAll(nodes);
if (createNodeList != null) nodeList.retainAll(createNodeList);
HashMap<String, Node> nodeNameVsShardCount = new HashMap<String, Node>();
for (String s : nodeList) nodeNameVsShardCount.put(s, new Node(s));
for (String s : clusterState.getCollections()) {
DocCollection c = clusterState.getCollection(s);
// identify suitable nodes by checking the no:of cores in each of them
for (Slice slice : c.getSlices()) {
Collection<Replica> replicas = slice.getReplicas();
for (Replica replica : replicas) {
Node count = nodeNameVsShardCount.get(replica.getNodeName());
if (count != null) {
count.totalNodes++;
if (s.equals(collectionName)) {
count.thisCollectionNodes++;
if (count.thisCollectionNodes >= maxShardsPerNode)
nodeNameVsShardCount.remove(replica.getNodeName());
}
}
}
}
}
if (nodeNameVsShardCount.size() <= 0) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Cannot create collection "
+ collectionName
+ ". No live Solr-instances"
+ ((createNodeList != null)
? " among Solr-instances specified in " + CREATE_NODE_SET + ":" + createNodeSetStr
: ""));
}
if (repFactor > nodeNameVsShardCount.size()) {
log.warn(
"Specified "
+ REPLICATION_FACTOR
+ " of "
+ repFactor
+ " on collection "
+ collectionName
+ " is higher than or equal to the number of Solr instances currently live or part of your "
+ CREATE_NODE_SET
+ "("
+ nodeList.size()
+ "). Its unusual to run two replica of the same slice on the same Solr-instance.");
}
int maxCoresAllowedToCreate = maxShardsPerNode * nodeList.size();
int requestedCoresToCreate = numSlices * repFactor;
int minCoresToCreate = requestedCoresToCreate;
if (maxCoresAllowedToCreate < minCoresToCreate) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Cannot create shards "
+ collectionName
+ ". Value of "
+ MAX_SHARDS_PER_NODE
+ " is "
+ maxShardsPerNode
+ ", and the number of live nodes is "
+ nodeList.size()
+ ". This allows a maximum of "
+ maxCoresAllowedToCreate
+ " to be created. Value of "
+ NUM_SLICES
+ " is "
+ numSlices
+ " and value of "
+ REPLICATION_FACTOR
+ " is "
+ repFactor
+ ". This requires "
+ requestedCoresToCreate
+ " shards to be created (higher than the allowed number)");
}
ArrayList<Node> sortedNodeList = new ArrayList<>(nodeNameVsShardCount.values());
Collections.sort(
sortedNodeList,
new Comparator<Node>() {
@Override
public int compare(Node x, Node y) {
return (x.weight() < y.weight()) ? -1 : ((x.weight() == y.weight()) ? 0 : 1);
}
});
return sortedNodeList;
}
protected NamedList<Object> sendRequest(SolrRequest request)
throws SolrServerException, IOException {
connect();
ClusterState clusterState = zkStateReader.getClusterState();
boolean sendToLeaders = false;
List<String> replicas = null;
if (request instanceof IsUpdateRequest) {
if (request instanceof UpdateRequest) {
NamedList<Object> response = directUpdate((AbstractUpdateRequest) request, clusterState);
if (response != null) {
return response;
}
}
sendToLeaders = true;
replicas = new ArrayList<>();
}
SolrParams reqParams = request.getParams();
if (reqParams == null) {
reqParams = new ModifiableSolrParams();
}
List<String> theUrlList = new ArrayList<>();
if (request.getPath().equals("/admin/collections")
|| request.getPath().equals("/admin/cores")) {
Set<String> liveNodes = clusterState.getLiveNodes();
for (String liveNode : liveNodes) {
theUrlList.add(zkStateReader.getBaseUrlForNodeName(liveNode));
}
} else {
String collection = reqParams.get(UpdateParams.COLLECTION, defaultCollection);
if (collection == null) {
throw new SolrServerException(
"No collection param specified on request and no default collection has been set.");
}
Set<String> collectionsList = getCollectionList(clusterState, collection);
if (collectionsList.size() == 0) {
throw new SolrException(ErrorCode.BAD_REQUEST, "Could not find collection: " + collection);
}
String shardKeys = reqParams.get(ShardParams._ROUTE_);
if (shardKeys == null) {
shardKeys = reqParams.get(ShardParams.SHARD_KEYS); // deprecated
}
// TODO: not a big deal because of the caching, but we could avoid looking
// at every shard
// when getting leaders if we tweaked some things
// Retrieve slices from the cloud state and, for each collection
// specified,
// add it to the Map of slices.
Map<String, Slice> slices = new HashMap<>();
for (String collectionName : collectionsList) {
DocCollection col = getDocCollection(clusterState, collectionName);
Collection<Slice> routeSlices = col.getRouter().getSearchSlices(shardKeys, reqParams, col);
ClientUtils.addSlices(slices, collectionName, routeSlices, true);
}
Set<String> liveNodes = clusterState.getLiveNodes();
List<String> leaderUrlList = null;
List<String> urlList = null;
List<String> replicasList = null;
// build a map of unique nodes
// TODO: allow filtering by group, role, etc
Map<String, ZkNodeProps> nodes = new HashMap<>();
List<String> urlList2 = new ArrayList<>();
for (Slice slice : slices.values()) {
for (ZkNodeProps nodeProps : slice.getReplicasMap().values()) {
ZkCoreNodeProps coreNodeProps = new ZkCoreNodeProps(nodeProps);
String node = coreNodeProps.getNodeName();
if (!liveNodes.contains(coreNodeProps.getNodeName())
|| !coreNodeProps.getState().equals(ZkStateReader.ACTIVE)) continue;
if (nodes.put(node, nodeProps) == null) {
if (!sendToLeaders || (sendToLeaders && coreNodeProps.isLeader())) {
String url;
if (reqParams.get(UpdateParams.COLLECTION) == null) {
url =
ZkCoreNodeProps.getCoreUrl(
nodeProps.getStr(ZkStateReader.BASE_URL_PROP), defaultCollection);
} else {
url = coreNodeProps.getCoreUrl();
}
urlList2.add(url);
} else if (sendToLeaders) {
String url;
if (reqParams.get(UpdateParams.COLLECTION) == null) {
url =
ZkCoreNodeProps.getCoreUrl(
nodeProps.getStr(ZkStateReader.BASE_URL_PROP), defaultCollection);
} else {
url = coreNodeProps.getCoreUrl();
}
replicas.add(url);
}
}
}
}
if (sendToLeaders) {
leaderUrlList = urlList2;
replicasList = replicas;
} else {
urlList = urlList2;
}
if (sendToLeaders) {
theUrlList = new ArrayList<>(leaderUrlList.size());
theUrlList.addAll(leaderUrlList);
} else {
theUrlList = new ArrayList<>(urlList.size());
theUrlList.addAll(urlList);
}
if (theUrlList.isEmpty()) {
throw new SolrException(
SolrException.ErrorCode.INVALID_STATE, "Not enough nodes to handle the request");
}
Collections.shuffle(theUrlList, rand);
if (sendToLeaders) {
ArrayList<String> theReplicas = new ArrayList<>(replicasList.size());
theReplicas.addAll(replicasList);
Collections.shuffle(theReplicas, rand);
theUrlList.addAll(theReplicas);
}
}
LBHttpSolrServer.Req req = new LBHttpSolrServer.Req(request, theUrlList);
LBHttpSolrServer.Rsp rsp = lbServer.request(req);
return rsp.getResponse();
}
@Test
public void testStoreAndRead() throws Exception {
Map<String, DocCollection> collectionStates = new HashMap<>();
Set<String> liveNodes = new HashSet<>();
liveNodes.add("node1");
liveNodes.add("node2");
Map<String, Slice> slices = new HashMap<>();
Map<String, Replica> sliceToProps = new HashMap<>();
Map<String, Object> props = new HashMap<>();
props.put("prop1", "value");
props.put("prop2", "value2");
Replica replica = new Replica("node1", props);
sliceToProps.put("node1", replica);
Slice slice = new Slice("shard1", sliceToProps, null);
slices.put("shard1", slice);
Slice slice2 = new Slice("shard2", sliceToProps, null);
slices.put("shard2", slice2);
collectionStates.put(
"collection1", new DocCollection("collection1", slices, null, DocRouter.DEFAULT));
collectionStates.put(
"collection2", new DocCollection("collection2", slices, null, DocRouter.DEFAULT));
ZkStateReader zkStateReaderMock = getMockZkStateReader(collectionStates.keySet());
ClusterState clusterState = new ClusterState(-1, liveNodes, collectionStates);
byte[] bytes = Utils.toJSON(clusterState);
// System.out.println("#################### " + new String(bytes));
ClusterState loadedClusterState = ClusterState.load(-1, bytes, liveNodes);
assertEquals(
"Provided liveNodes not used properly", 2, loadedClusterState.getLiveNodes().size());
assertEquals("No collections found", 2, loadedClusterState.getCollectionsMap().size());
assertEquals(
"Properties not copied properly",
replica.getStr("prop1"),
loadedClusterState
.getSlice("collection1", "shard1")
.getReplicasMap()
.get("node1")
.getStr("prop1"));
assertEquals(
"Properties not copied properly",
replica.getStr("prop2"),
loadedClusterState
.getSlice("collection1", "shard1")
.getReplicasMap()
.get("node1")
.getStr("prop2"));
loadedClusterState = ClusterState.load(-1, new byte[0], liveNodes);
assertEquals(
"Provided liveNodes not used properly", 2, loadedClusterState.getLiveNodes().size());
assertEquals("Should not have collections", 0, loadedClusterState.getCollectionsMap().size());
loadedClusterState = ClusterState.load(-1, (byte[]) null, liveNodes);
assertEquals(
"Provided liveNodes not used properly", 2, loadedClusterState.getLiveNodes().size());
assertEquals("Should not have collections", 0, loadedClusterState.getCollectionsMap().size());
}
protected Set<String> commonMocks(int liveNodesCount) throws Exception {
shardHandlerFactoryMock.getShardHandler();
expectLastCall()
.andAnswer(
new IAnswer<ShardHandler>() {
@Override
public ShardHandler answer() throws Throwable {
log.info("SHARDHANDLER");
return shardHandlerMock;
}
})
.anyTimes();
workQueueMock.peekTopN(EasyMock.anyInt(), anyObject(Set.class), EasyMock.anyLong());
expectLastCall()
.andAnswer(
new IAnswer<List>() {
@Override
public List answer() throws Throwable {
Object result;
int count = 0;
while ((result = queue.peek()) == null) {
Thread.sleep(1000);
count++;
if (count > 1) return null;
}
return Arrays.asList(result);
}
})
.anyTimes();
workQueueMock.getTailId();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
Object result = null;
Iterator iter = queue.iterator();
while (iter.hasNext()) {
result = iter.next();
}
return result == null ? null : ((QueueEvent) result).getId();
}
})
.anyTimes();
workQueueMock.peek(true);
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
Object result;
while ((result = queue.peek()) == null) {
Thread.sleep(1000);
}
return result;
}
})
.anyTimes();
workQueueMock.remove(anyObject(QueueEvent.class));
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
queue.remove((QueueEvent) getCurrentArguments()[0]);
return null;
}
})
.anyTimes();
workQueueMock.poll();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return queue.poll();
}
})
.anyTimes();
zkStateReaderMock.getClusterState();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return clusterStateMock;
}
})
.anyTimes();
zkStateReaderMock.getZkClient();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return solrZkClientMock;
}
})
.anyTimes();
zkStateReaderMock.updateClusterState(anyBoolean());
clusterStateMock.getCollections();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return collectionsSet;
}
})
.anyTimes();
final Set<String> liveNodes = new HashSet<>();
for (int i = 0; i < liveNodesCount; i++) {
final String address = "localhost:" + (8963 + i) + "_solr";
liveNodes.add(address);
zkStateReaderMock.getBaseUrlForNodeName(address);
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
// This works as long as this test does not use a
// webapp context with an underscore in it
return address.replaceAll("_", "/");
}
})
.anyTimes();
}
zkStateReaderMock.getClusterProps();
expectLastCall()
.andAnswer(
new IAnswer<Map>() {
@Override
public Map answer() throws Throwable {
return new HashMap();
}
});
solrZkClientMock.getZkClientTimeout();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return 30000;
}
})
.anyTimes();
clusterStateMock.hasCollection(anyObject(String.class));
expectLastCall()
.andAnswer(
new IAnswer<Boolean>() {
@Override
public Boolean answer() throws Throwable {
String key = (String) getCurrentArguments()[0];
return collectionsSet.contains(key);
}
})
.anyTimes();
clusterStateMock.getLiveNodes();
expectLastCall()
.andAnswer(
new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
return liveNodes;
}
})
.anyTimes();
solrZkClientMock.create(
anyObject(String.class),
anyObject(byte[].class),
anyObject(CreateMode.class),
anyBoolean());
expectLastCall()
.andAnswer(
new IAnswer<String>() {
@Override
public String answer() throws Throwable {
String key = (String) getCurrentArguments()[0];
zkMap.put(key, null);
handleCreateCollMessage((byte[]) getCurrentArguments()[1]);
return key;
}
})
.anyTimes();
solrZkClientMock.makePath(anyObject(String.class), anyObject(byte[].class), anyBoolean());
expectLastCall()
.andAnswer(
new IAnswer<String>() {
@Override
public String answer() throws Throwable {
String key = (String) getCurrentArguments()[0];
return key;
}
})
.anyTimes();
solrZkClientMock.makePath(
anyObject(String.class),
anyObject(byte[].class),
anyObject(CreateMode.class),
anyBoolean());
expectLastCall()
.andAnswer(
new IAnswer<String>() {
@Override
public String answer() throws Throwable {
String key = (String) getCurrentArguments()[0];
return key;
}
})
.anyTimes();
solrZkClientMock.exists(anyObject(String.class), anyBoolean());
expectLastCall()
.andAnswer(
new IAnswer<Boolean>() {
@Override
public Boolean answer() throws Throwable {
String key = (String) getCurrentArguments()[0];
return zkMap.containsKey(key);
}
})
.anyTimes();
zkMap.put("/configs/myconfig", null);
return liveNodes;
}
protected void testTemplate(
Integer numberOfNodes,
Integer numberOfNodesToCreateOn,
CreateNodeListOptions createNodeListOption,
Integer replicationFactor,
Integer numberOfSlices,
Integer maxShardsPerNode,
boolean collectionExceptedToBeCreated)
throws Exception {
assertTrue(
"Wrong usage of testTemplate. numberOfNodesToCreateOn "
+ numberOfNodesToCreateOn
+ " is not allowed to be higher than numberOfNodes "
+ numberOfNodes,
numberOfNodes.intValue() >= numberOfNodesToCreateOn.intValue());
assertTrue(
"Wrong usage of testTemplage. createNodeListOption has to be "
+ CreateNodeListOptions.SEND
+ " when numberOfNodes and numberOfNodesToCreateOn are unequal",
((createNodeListOption == CreateNodeListOptions.SEND)
|| (numberOfNodes.intValue() == numberOfNodesToCreateOn.intValue())));
Set<String> liveNodes = commonMocks(numberOfNodes);
List<String> createNodeList = new ArrayList<>();
int i = 0;
for (String node : liveNodes) {
if (i++ < numberOfNodesToCreateOn) {
createNodeList.add(node);
}
}
if (random().nextBoolean())
Collections.shuffle(createNodeList, OverseerCollectionProcessor.RANDOM);
List<SubmitCapture> submitCaptures = null;
if (collectionExceptedToBeCreated) {
submitCaptures = mockShardHandlerForCreateJob(numberOfSlices, replicationFactor);
}
replay(workQueueMock);
replay(solrZkClientMock);
replay(zkStateReaderMock);
replay(clusterStateMock);
replay(shardHandlerFactoryMock);
replay(shardHandlerMock);
log.info("clusterstate " + clusterStateMock.hashCode());
startComponentUnderTest();
final List<String> createNodeListToSend =
((createNodeListOption != CreateNodeListOptions.SEND_NULL) ? createNodeList : null);
final boolean sendCreateNodeList = (createNodeListOption != CreateNodeListOptions.DONT_SEND);
final boolean dontShuffleCreateNodeSet =
(createNodeListToSend != null) && sendCreateNodeList && random().nextBoolean();
issueCreateJob(
numberOfSlices,
replicationFactor,
maxShardsPerNode,
createNodeListToSend,
sendCreateNodeList,
!dontShuffleCreateNodeSet);
waitForEmptyQueue(10000);
if (collectionExceptedToBeCreated) {
assertNotNull(lastProcessMessageResult.getResponse().toString(), lastProcessMessageResult);
}
verify(shardHandlerFactoryMock);
verify(shardHandlerMock);
if (collectionExceptedToBeCreated) {
verifySubmitCaptures(
submitCaptures,
numberOfSlices,
replicationFactor,
createNodeList,
dontShuffleCreateNodeSet);
}
}
private String getShard(int hash, String collection, ClusterState clusterState) {
// ranges should be part of the cloud state and eventually gotten from zk
// get the shard names
return clusterState.getShard(hash, collection);
}
