JanusGraph avec Solr

Question

Je rencontre des problèmes avec la connexion à JanusGraph Solr: Je donne les résultats suivants:

application.java 
    public static void main(String args[]) { 
     JanusGraph g = JanusGraphFactory.open("/path/to/file/janusgraph-solr.properties"); 
     GraphOfTheGodsFactory.load(g); 
     g.close(); 
    } 

janushgraph-solr.properties

# Change to the directory where JanusGraph was extracted. Later commands 
# use relative paths to the Solr config files shipped with the JanusGraph 
# distribution. 
cd $JANUSGRAPH_HOME 

# The name must be URL safe and should contain one dot/full-stop 
# character. The part of the name after the dot must not conflict with 
# any of JanusGraph's internal CF names. Starting the part after the dot 
# "solr" will avoid a conflict with JanusGraph's internal CF names. 
CORE_NAME=testt 
# Where to upload collection configuration and send CoreAdmin requests. 
SOLR_HOST=localhost:8983 

# The value of index.[X].solr.http-urls in JanusGraph's config file 
# should match $SOLR_HOST and $CORE_NAME. For example, given the 
# $CORE_NAME and $SOLR_HOST values above, JanusGraph's config file would 
# contain (assuming "search" is the desired index alias): 
# 
index.search.solr.http-urls=http://localhost:8983/solr/testt 
# 
# The stock JanusGraph config file conf/janusgraph-cassandra-solr.properties 
# ships with this http-urls value. 

storage.backend=cassandrathrift 

de fichiers GraphOfTheGods: https://github.com/JanusGraph/janusgraph/blob/master/janusgraph-core/src/main/java/org/janusgraph/example/GraphOfTheGodsFactory.java

Je reçois l'erreur suivante:

Exception in thread "main" java.lang.IllegalArgumentException: Could not instantiate implementation: org.janusgraph.diskstorage.cassandra.thrift.CassandraThriftStoreManager 

Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend 

Caused by: java.net.ConnectException: Connection refused (Connection refused) 

Comment se débarrasser de storage.backend = cassandrathrift et utiliser solr comme backend? en remplaçant "cassandrathrift" par solr comme le document suggère échoue pour moi. Ceci a pour résultat que la classe solr n'est pas trouvée. Toute aide serait appréciée

Answer 1

Activer le serveur Thrift sur cassandra

nodetool enablethrift 

Answer 2

Changement storage.backend=cql de storage.backend=cassandrathrift.