[iotdb] branch master updated: [IOTDB-4726]show cluster return with msg: 500 null (#7952)

[caogaofei]

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caogaofei pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new a5d6e97259 [IOTDB-4726]show cluster return with msg: 500 null (#7952)
a5d6e97259 is described below

commit a5d6e972592e462e5921a3ec749a78a43cd0f6ea
Author: ljn55966005 <32378956+ljn55966...@users.noreply.github.com>
AuthorDate: Thu Nov 10 08:49:40 2022 +0800

    [IOTDB-4726]show cluster return with msg: 500 null (#7952)
---
 .../execution/config/executor/ClusterConfigTaskExecutor.java   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/executor/ClusterConfigTaskExecutor.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/executor/ClusterConfigTaskExecutor.java
index 406202398c..d909f82a1b 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/executor/ClusterConfigTaskExecutor.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/execution/config/executor/ClusterConfigTaskExecutor.java
@@ -165,6 +165,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+import static 
org.apache.iotdb.db.client.ConfigNodeClient.MSG_RECONNECTION_FAIL;
+
 public class ClusterConfigTaskExecutor implements IConfigTaskExecutor {
 
   private static final Logger LOGGER = 
LoggerFactory.getLogger(ClusterConfigTaskExecutor.class);
@@ -731,7 +733,12 @@ public class ClusterConfigTaskExecutor implements 
IConfigTaskExecutor {
         
CONFIG_NODE_CLIENT_MANAGER.borrowClient(ConfigNodeInfo.partitionRegionId)) {
       showClusterResp = client.showCluster();
     } catch (TException | IOException e) {
-      future.setException(e);
+      if (showClusterResp.getConfigNodeList() == null) {
+        future.setException(new TException(MSG_RECONNECTION_FAIL));
+      } else {
+        future.setException(e);
+      }
+      return future;
     }
     // build TSBlock
     if (showClusterStatement.isDetails()) {
@@ -739,6 +746,7 @@ public class ClusterConfigTaskExecutor implements 
IConfigTaskExecutor {
     } else {
       ShowClusterTask.buildTSBlock(showClusterResp, future);
     }
+
     return future;
   }