wuchunfu commented on a change in pull request #1369:
URL: 
https://github.com/apache/incubator-seatunnel/pull/1369#discussion_r818785042



##########
File path: 
seatunnel-connectors/seatunnel-connector-spark-clickhouse/src/main/scala/org/apache/seatunnel/spark/sink/Clickhouse.scala
##########
@@ -131,12 +198,77 @@ class Clickhouse extends SparkBatchSink {
     schema
   }
 
+  private def getClusterShardList(conn: ClickHouseConnectionImpl, clusterName: 
String,
+                                  database: String, port: String): 
ListBuffer[Shard] = {
+    val rs = conn.createStatement().executeQuery(
+      s"select shard_num,shard_weight,replica_num,host_name,host_address," +
+        s"port from system.clusters where cluster = '$clusterName'")

Review comment:
       @BenJFan Is `system.clusters` a fixed value? Is this the only way to get 
it?




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