diff --git a/lib/default.etcd/member/wal/0000000000000000-0000000000000000.wal b/lib/default.etcd/member/wal/0000000000000000-0000000000000000.wal
new file mode 100644
index 000000000..c38962cad
Binary files /dev/null and b/lib/default.etcd/member/wal/0000000000000000-0000000000000000.wal differ
diff --git a/src/main.cpp b/src/main.cpp
index 010d1e10f..be541ab03 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -103,7 +103,7 @@ static volatile int load_;
 
 __thread l_sfp *__thr_sfp=NULL;
 
-const char *malloc_conf = "xmalloc:true,lg_tcache_max:17";
+const char *malloc_conf = "xmalloc:true,lg_tcache_max:15";
 
 int listen_fd;
 int socket_fd;