Merge pull request #406 from eshujiushiwo/master

Fix the filer connection of cassandra

weed/filer/cassandra_store/cassandra_store.go

@@ -2,7 +2,7 @@ package cassandra_store
 
 import (
 	"fmt"
-
+	"strings"
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 
@@ -30,9 +30,15 @@ type CassandraStore struct {
 	session *gocql.Session
 }
 
-func NewCassandraStore(keyspace string, hosts ...string) (c *CassandraStore, err error) {
+func NewCassandraStore(keyspace string, hosts string) (c *CassandraStore, err error) {
 	c = &CassandraStore{}
-	c.cluster = gocql.NewCluster(hosts...)
+	        s := strings.Split(hosts, ",")
+        if len(s) == 1 {
+		glog.V(2).Info("Only one  cassandra node to connect!A Cluster is Proposed!Now using:", string(hosts))
+                c.cluster = gocql.NewCluster(hosts)
+        } else if len(s) > 1 {
+                c.cluster = gocql.NewCluster(s...)
+        }
 	c.cluster.Keyspace = keyspace
 	c.cluster.Consistency = gocql.Quorum
 	c.session, err = c.cluster.CreateSession()