[docs] Use a remote path instead of local path for "data.remote.dir" in distributed cluster guide (#1484)

Author: leosanqing

website/docs/install-deploy/deploying-distributed-cluster.md

@@ -87,7 +87,10 @@ bind.listeners: FLUSS://192.168.10.100:9123
 zookeeper.address: 192.168.10.199:2181
 zookeeper.path.root: /fluss
 
-remote.data.dir: /tmp/fluss-remote-data
+# When running in distributed mode, be sure to point to a remote path—
+# e.g. oss://bucket/path for OSS or hdfs://namenode:port/path for HDFS.
+# Otherwise, queries will fail with a “No such file or directory” error.
+remote.data.dir: hdfs://namenode:port/tmp/fluss-remote-data
 ```
 
 **Node1**
@@ -100,7 +103,10 @@ tablet-server.id: 1
 zookeeper.address: 192.168.10.199:2181
 zookeeper.path.root: /fluss
 
-remote.data.dir: /tmp/fluss-remote-data
+# When running in distributed mode, be sure to point to a remote path—
+# e.g. oss://bucket/path for OSS or hdfs://namenode:port/path for HDFS.
+# Otherwise, queries will fail with a “No such file or directory” error.
+remote.data.dir: hdfs://namenode:port/tmp/fluss-remote-data
 ```
 
 **Node2**
@@ -113,7 +119,10 @@ tablet-server.id: 2
 zookeeper.address: 192.168.10.199:2181
 zookeeper.path.root: /fluss
 
-remote.data.dir: /tmp/fluss-remote-data
+# When running in distributed mode, be sure to point to a remote path—
+# e.g. oss://bucket/path for OSS or hdfs://namenode:port/path for HDFS.
+# Otherwise, queries will fail with a “No such file or directory” error.
+remote.data.dir: hdfs://namenode:port/tmp/fluss-remote-data
 ```
 
 **Node3**
@@ -125,7 +134,10 @@ tablet-server.id: 3
 zookeeper.address: 192.168.10.199:2181
 zookeeper.path.root: /fluss
 
-remote.data.dir: /tmp/fluss-remote-data
+# When running in distributed mode, be sure to point to a remote path—
+# e.g. oss://bucket/path for OSS or hdfs://namenode:port/path for HDFS.
+# Otherwise, queries will fail with a “No such file or directory” error.
+remote.data.dir: hdfs://namenode:port/tmp/fluss-remote-data
 ```
 
 :::note