I have a question about this connector. If my Spark cluster and my Cassandra cluster are not on the same cluster, how does the READ work? Does Spark bring the entire Cassandra table into its own cluster and rearrange it into Spark partition?
我对这个连接器有疑问。如果我的Spark群集和我的Cassandra群集不在同一个群集上,那么READ如何工作? Spark是否将整个Cassandra表引入其自己的集群并将其重新排列为Spark分区?
1 个解决方案
#1
0
push down operations are available between spark and cassandraas long as you filter early, cassandra will conduct all filters so that you ship over network already filtered data, have a read: tips cassandra-spark
火花和cassandraas之间的下推操作,只要你提前过滤,cassandra将执行所有过滤器,以便您通过网络已经过滤的数据,阅读:提示cassandra-spark
#1
0
push down operations are available between spark and cassandraas long as you filter early, cassandra will conduct all filters so that you ship over network already filtered data, have a read: tips cassandra-spark
火花和cassandraas之间的下推操作,只要你提前过滤,cassandra将执行所有过滤器,以便您通过网络已经过滤的数据,阅读:提示cassandra-spark