[GitHub] [iotdb] wangchao316 commented on a diff in pull request #6552: [IOTDB-3529] Rename Region to RegionGroup and optimize the SetTTL process

[GitBox <gi...@apache.org>]

wangchao316 commented on code in PR #6552:
URL: https://github.com/apache/iotdb/pull/6552#discussion_r911683528


##########
confignode/src/main/java/org/apache/iotdb/confignode/client/AsyncDataNodeClientPool.java:
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@@ -283,6 +286,23 @@ public void flush(TEndPoint endPoint, TFlushReq flushReq, FlushHandler handler)
     }
   }
 
+  /**
+   * Set TTL on specific DataNode
+   *
+   * @param endPoint The specific DataNode
+   */
+  public void setTTL(TEndPoint endPoint, TSetTTLReq setTTLReq, SetTTLHandler handler) {
+    for (int retry = 0; retry < 3; retry++) {
+      try {
+        clientManager.borrowClient(endPoint).setTTL(setTTLReq, handler);
+      } catch (IOException e) {
+        LOGGER.error("Can't connect to DataNode {}", endPoint, e);
+      } catch (TException e) {
+        LOGGER.error("Set TTL on DataNode {} failed", endPoint, e);

Review Comment:
   sleep...



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