diff --git a/benchmarks/config/sst.toml b/benchmarks/config/sst.toml
index 7f710ba862..566fd3646f 100644
--- a/benchmarks/config/sst.toml
+++ b/benchmarks/config/sst.toml
@@ -1,4 +1,4 @@
-// Copyright 2022 CeresDB Project Authors. Licensed under Apache-2.0.
+# Copyright 2022 CeresDB Project Authors. Licensed under Apache-2.0.
 
 runtime_thread_num = 4
 
diff --git a/src/docs/config.toml b/src/docs/config.toml
deleted file mode 100644
index 3713da9272..0000000000
--- a/src/docs/config.toml
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2022 CeresDB Project Authors. Licensed under Apache-2.0.
-
-bind_addr = "0.0.0.0"
-http_port = 5000
-grpc_port = 8831
-mysql_port = 3307
-log_level = "debug"
-
-[analytic]
-data_path = "/tmp/ceresdb/"
-
-[analytic.table_opts]
-arena_block_size = 128
-
-[[meta_client.cluster_view.shards]]
-shard_id = 0
-[[meta_client.cluster_view.shards.nodes]]
-addr = '127.0.0.1'
-port = 38082
-
-[[meta_client.cluster_view.shards]]
-shard_id = 1
-[[meta_client.cluster_view.shards.nodes]]
-addr = '127.0.0.1'
-port = 48082
-[[meta_client.cluster_view.shards.nodes]]
-addr = '127.0.0.1'
-port = 58082