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;
}
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);
}
}
/**
* 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;
}
