diff --git a/src/share/parameter/ob_parameter_seed.ipp b/src/share/parameter/ob_parameter_seed.ipp
index 087dbe1401..7c479fbacf 100644
--- a/src/share/parameter/ob_parameter_seed.ipp
+++ b/src/share/parameter/ob_parameter_seed.ipp
@@ -72,7 +72,7 @@ DEF_INT(high_priority_net_thread_count, OB_CLUSTER_PARAMETER, "0", "[0,64]",
 DEF_INT(rdma_io_thread_count, OB_CLUSTER_PARAMETER, "0", "[0,8]",
         "the number of RDMA I/O threads for Libreasy. Range: [0, 8] in integer, 0 stands for RDMA being disabled.",
         ObParameterAttr(Section::OBSERVER, Source::DEFAULT, EditLevel::STATIC_EFFECTIVE));
-DEF_INT(tenant_task_queue_size, OB_CLUSTER_PARAMETER, "8192", "[1024,]",
+DEF_INT(tenant_task_queue_size, OB_CLUSTER_PARAMETER, "16384", "[1024,]",
         "the size of the task queue for each tenant. Range: [1024,+∞)",
         ObParameterAttr(Section::OBSERVER, Source::DEFAULT, EditLevel::DYNAMIC_EFFECTIVE));
 _DEF_PARAMETER_SCOPE_CHECKER_EASY(private, Capacity, memory_limit, OB_CLUSTER_PARAMETER, "0",