diff --git a/include/dsn/dist/block_service.h b/include/dsn/dist/block_service.h
index 7e96b9c35f..2066dd4469 100644
--- a/include/dsn/dist/block_service.h
+++ b/include/dsn/dist/block_service.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <dsn/tool-api/task_code.h>
 #include <dsn/tool-api/task_tracker.h>
 #include <dsn/dist/replication.h>
 #include <functional>
@@ -9,6 +10,8 @@ namespace dsn {
 namespace dist {
 namespace block_service {
 
+DEFINE_THREAD_POOL_CODE(THREAD_POOL_BLOCK_SERVICE)
+
 class block_file;
 typedef dsn::ref_ptr<block_file> block_file_ptr;
 
diff --git a/src/block_service/fds/fds_service.cpp b/src/block_service/fds/fds_service.cpp
index cf271c982c..e031c68262 100644
--- a/src/block_service/fds/fds_service.cpp
+++ b/src/block_service/fds/fds_service.cpp
@@ -112,8 +112,7 @@ std::string utils::path_from_fds(const std::string &input, bool /*is_dir*/)
     return result;
 }
 
-DEFINE_THREAD_POOL_CODE(THREAD_POOL_FDS_SERVICE)
-DEFINE_TASK_CODE(LPC_FDS_CALL, TASK_PRIORITY_COMMON, THREAD_POOL_FDS_SERVICE)
+DEFINE_TASK_CODE(LPC_FDS_CALL, TASK_PRIORITY_COMMON, THREAD_POOL_BLOCK_SERVICE)
 
 const std::string fds_service::FILE_LENGTH_CUSTOM_KEY = "x-xiaomi-meta-content-length";
 const std::string fds_service::FILE_MD5_KEY = "content-md5";
diff --git a/src/block_service/hdfs/hdfs_service.cpp b/src/block_service/hdfs/hdfs_service.cpp
index 86354297e9..08fee5ff2e 100644
--- a/src/block_service/hdfs/hdfs_service.cpp
+++ b/src/block_service/hdfs/hdfs_service.cpp
@@ -34,7 +34,6 @@ namespace dsn {
 namespace dist {
 namespace block_service {
 
-DEFINE_THREAD_POOL_CODE(THREAD_POOL_BLOCK_SERVICE)
 DEFINE_TASK_CODE(LPC_HDFS_SERVICE_CALL, TASK_PRIORITY_COMMON, THREAD_POOL_BLOCK_SERVICE)
 
 DSN_DEFINE_uint64("replication",
diff --git a/src/block_service/local/local_service.cpp b/src/block_service/local/local_service.cpp
index 9120e033fd..003b08e0fd 100644
--- a/src/block_service/local/local_service.cpp
+++ b/src/block_service/local/local_service.cpp
@@ -17,8 +17,7 @@ namespace dsn {
 namespace dist {
 namespace block_service {
 
-DEFINE_THREAD_POOL_CODE(THREAD_POOL_LOCAL_SERVICE)
-DEFINE_TASK_CODE(LPC_LOCAL_SERVICE_CALL, TASK_PRIORITY_COMMON, THREAD_POOL_LOCAL_SERVICE)
+DEFINE_TASK_CODE(LPC_LOCAL_SERVICE_CALL, TASK_PRIORITY_COMMON, THREAD_POOL_BLOCK_SERVICE)
 
 struct file_metadata
 {
diff --git a/src/block_service/test/config-test.ini b/src/block_service/test/config-test.ini
index db9622b7a2..a16f7187ef 100644
--- a/src/block_service/test/config-test.ini
+++ b/src/block_service/test/config-test.ini
@@ -7,7 +7,7 @@ type = replica
 run = true
 count = 1
 ports = 54321
-pools = THREAD_POOL_DEFAULT,THREAD_POOL_LOCAL_SERVICE,THREAD_POOL_FDS_SERVICE,THREAD_POOL_BLOCK_SERVICE
+pools = THREAD_POOL_DEFAULT,THREAD_POOL_BLOCK_SERVICE
 
 [core]
 tool = nativerun
@@ -20,9 +20,6 @@ fast_flush = true
 short_header = false
 stderr_start_level = LOG_LEVEL_WARNING
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
-worker_count = 8
-
 [fds_concurrent_test]
 total_files = 64
 min_size = 100
diff --git a/src/failure_detector/test/config-test.ini b/src/failure_detector/test/config-test.ini
index 40cef5a490..e0ba2472ae 100644
--- a/src/failure_detector/test/config-test.ini
+++ b/src/failure_detector/test/config-test.ini
@@ -12,7 +12,7 @@ run = true
 ports =
 count = 1
 delay_seconds = 1
-pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_FDS_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
+pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_BLOCK_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
 
 [apps.server]
 type = test
@@ -93,7 +93,7 @@ worker_priority = THREAD_xPRIORITY_NORMAL
 [threadpool.THREAD_POOL_TEST_SERVER]
 partitioned = false
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
 worker_count = 8
 
 [threadpool.THREAD_POOL_DLOCK]
diff --git a/src/failure_detector/test/config-whitelist-test-failed.ini b/src/failure_detector/test/config-whitelist-test-failed.ini
index b0a53edbb6..eb3c6f7b4c 100644
--- a/src/failure_detector/test/config-whitelist-test-failed.ini
+++ b/src/failure_detector/test/config-whitelist-test-failed.ini
@@ -12,7 +12,7 @@ run = true
 ports =
 count = 1
 delay_seconds = 1
-pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_FDS_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
+pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_BLOCK_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
 
 [apps.server]
 type = test
@@ -94,7 +94,7 @@ worker_priority = THREAD_xPRIORITY_NORMAL
 [threadpool.THREAD_POOL_TEST_SERVER]
 partitioned = false
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
 worker_count = 8
 
 [threadpool.THREAD_POOL_DLOCK]
diff --git a/src/failure_detector/test/config-whitelist-test.ini b/src/failure_detector/test/config-whitelist-test.ini
index 838db107c4..82e55e3555 100644
--- a/src/failure_detector/test/config-whitelist-test.ini
+++ b/src/failure_detector/test/config-whitelist-test.ini
@@ -12,7 +12,7 @@ run = true
 ports =
 count = 1
 delay_seconds = 1
-pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_FDS_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
+pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_BLOCK_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
 
 [apps.server]
 type = test
@@ -94,7 +94,7 @@ worker_priority = THREAD_xPRIORITY_NORMAL
 [threadpool.THREAD_POOL_TEST_SERVER]
 partitioned = false
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
 worker_count = 8
 
 [threadpool.THREAD_POOL_DLOCK]
diff --git a/src/meta/test/config-test.ini b/src/meta/test/config-test.ini
index b2215bec42..fcf2cf3342 100644
--- a/src/meta/test/config-test.ini
+++ b/src/meta/test/config-test.ini
@@ -10,7 +10,7 @@ type = test_meta
 run = true
 count = 1
 ports = 54321
-pools = THREAD_POOL_DEFAULT,THREAD_POOL_META_SERVER,THREAD_POOL_DLOCK,THREAD_POOL_META_STATE,THREAD_POOL_LOCAL_SERVICE,THREAD_POOL_META_TEST
+pools = THREAD_POOL_DEFAULT,THREAD_POOL_META_SERVER,THREAD_POOL_DLOCK,THREAD_POOL_META_STATE,THREAD_POOL_BLOCK_SERVICE,THREAD_POOL_META_TEST
 
 [core]
 ;tool = simulator
diff --git a/src/meta/test/meta_state/config-test.ini b/src/meta/test/meta_state/config-test.ini
index b692830588..ece38dde87 100644
--- a/src/meta/test/meta_state/config-test.ini
+++ b/src/meta/test/meta_state/config-test.ini
@@ -12,7 +12,7 @@ run = true
 ports =
 count = 1
 delay_seconds = 1
-pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_FDS_SERVICE
+pools = THREAD_POOL_DEFAULT, THREAD_POOL_DLOCK, THREAD_POOL_REPLICATION, THREAD_POOL_REPLICATION_LONG, THREAD_POOL_BLOCK_SERVICE
 
 [apps.server]
 type = test
@@ -77,7 +77,7 @@ worker_priority = THREAD_xPRIORITY_NORMAL
 [threadpool.THREAD_POOL_TEST_SERVER]
 partitioned = false
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
 worker_count = 8
 
 [threadpool.THREAD_POOL_DLOCK]
diff --git a/src/replica/bulk_load/test/config-test.ini b/src/replica/bulk_load/test/config-test.ini
index c0566d14c4..d23dcbadff 100644
--- a/src/replica/bulk_load/test/config-test.ini
+++ b/src/replica/bulk_load/test/config-test.ini
@@ -10,7 +10,7 @@ type = replica
 run = true
 count = 1
 ports = 54321
-pools = THREAD_POOL_DEFAULT,THREAD_POOL_REPLICATION_LONG,THREAD_POOL_REPLICATION,THREAD_POOL_LOCAL_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
+pools = THREAD_POOL_DEFAULT,THREAD_POOL_REPLICATION_LONG,THREAD_POOL_REPLICATION,THREAD_POOL_BLOCK_SERVICE,THREAD_POOL_SLOG,THREAD_POOL_PLOG
 
 [core]
 ;tool = simulator
@@ -58,8 +58,8 @@ worker_count = 3
 [threadpool.THREAD_POOL_REPLICATION_LONG]
 name = replica_long
 
-[threadpool.THREAD_POOL_LOCAL_SERVICE]
-name = local_service
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
+name = block_service
 worker_count = 1
 
 [task..default]
diff --git a/src/zookeeper/test/config-test.ini b/src/zookeeper/test/config-test.ini
index 38ede0c257..f51dd74cd7 100644
--- a/src/zookeeper/test/config-test.ini
+++ b/src/zookeeper/test/config-test.ini
@@ -85,7 +85,7 @@ worker_priority = THREAD_xPRIORITY_NORMAL
 [threadpool.THREAD_POOL_TEST_SERVER]
 partitioned = false
 
-[threadpool.THREAD_POOL_FDS_SERVICE]
+[threadpool.THREAD_POOL_BLOCK_SERVICE]
 worker_count = 8
 
 [threadpool.THREAD_POOL_DLOCK]