diff --git a/.github/actions/setup-greptimedb-cluster/with-minio-and-cache.yaml b/.github/actions/setup-greptimedb-cluster/with-minio-and-cache.yaml
index 8f99c242f4bf..864e59c4bc7b 100644
--- a/.github/actions/setup-greptimedb-cluster/with-minio-and-cache.yaml
+++ b/.github/actions/setup-greptimedb-cluster/with-minio-and-cache.yaml
@@ -5,7 +5,7 @@ meta:
 
     [datanode]
     [datanode.client]
-    timeout = "60s"
+    timeout = "120s"
 datanode:
   configData: |-
     [runtime]
@@ -21,7 +21,7 @@ frontend:
     global_rt_size = 4
 
     [meta_client]
-    ddl_timeout = "60s"
+    ddl_timeout = "120s"
 objectStorage:
   s3:
     bucket: default
diff --git a/.github/actions/setup-greptimedb-cluster/with-minio.yaml b/.github/actions/setup-greptimedb-cluster/with-minio.yaml
index b8121374ce03..2e6a7b930eb1 100644
--- a/.github/actions/setup-greptimedb-cluster/with-minio.yaml
+++ b/.github/actions/setup-greptimedb-cluster/with-minio.yaml
@@ -5,7 +5,7 @@ meta:
     
     [datanode]
     [datanode.client]
-    timeout = "60s"
+    timeout = "120s"
 datanode:
   configData: |-
     [runtime]
@@ -17,7 +17,7 @@ frontend:
     global_rt_size = 4
 
     [meta_client]
-    ddl_timeout = "60s"
+    ddl_timeout = "120s"
 objectStorage:
   s3:
     bucket: default
diff --git a/.github/actions/setup-greptimedb-cluster/with-remote-wal.yaml b/.github/actions/setup-greptimedb-cluster/with-remote-wal.yaml
index 043b9fe43f85..a97f921f8c26 100644
--- a/.github/actions/setup-greptimedb-cluster/with-remote-wal.yaml
+++ b/.github/actions/setup-greptimedb-cluster/with-remote-wal.yaml
@@ -11,7 +11,7 @@ meta:
         
     [datanode]
     [datanode.client]
-    timeout = "60s"
+    timeout = "120s"
 datanode:
   configData: |-
     [runtime]
@@ -28,7 +28,7 @@ frontend:
     global_rt_size = 4
 
     [meta_client]
-    ddl_timeout = "60s"
+    ddl_timeout = "120s"
 objectStorage:
   s3:
     bucket: default
diff --git a/tests-fuzz/src/utils.rs b/tests-fuzz/src/utils.rs
index 84222f6d5a58..8e5daef4eb1d 100644
--- a/tests-fuzz/src/utils.rs
+++ b/tests-fuzz/src/utils.rs
@@ -141,10 +141,10 @@ macro_rules! make_get_from_env_helper {
 }
 
 make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_ALTER_ACTIONS, 256);
-make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_INSERT_ACTIONS, 8);
+make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_INSERT_ACTIONS, 4);
 make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_ROWS, 512);
-make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_TABLES, 64);
-make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_COLUMNS, 32);
+make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_TABLES, 32);
+make_get_from_env_helper!(GT_FUZZ_INPUT_MAX_COLUMNS, 16);
 
 /// Retrieves a value from the environment variables
 /// or returns a default value if the environment variable is not set.