diff --git a/client/src/main/java/com/vesoft/nebula/client/graph/net/NebulaPool.java b/client/src/main/java/com/vesoft/nebula/client/graph/net/NebulaPool.java
index 0ffc6a523..262458622 100644
--- a/client/src/main/java/com/vesoft/nebula/client/graph/net/NebulaPool.java
+++ b/client/src/main/java/com/vesoft/nebula/client/graph/net/NebulaPool.java
@@ -112,6 +112,8 @@ public boolean init(List<HostAddress> addresses, NebulaPoolConfig config)
         objConfig.setMaxTotal(config.getMaxConnSize());
         objConfig.setTestOnBorrow(true);
         objConfig.setTestOnReturn(true);
+        objConfig.setTestOnCreate(true);
+        objConfig.setTestWhileIdle(true);
         objConfig.setTimeBetweenEvictionRunsMillis(config.getIntervalIdle() <= 0
             ? BaseObjectPoolConfig.DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS
             : config.getIntervalIdle());