From f5ae701c8d319e18978cfc0510bab3932b6ec08b Mon Sep 17 00:00:00 2001
From: Ning Sun <sunng@protonmail.com>
Date: Fri, 14 Jun 2024 22:20:46 -0700
Subject: [PATCH] chore: update sample config files and default settings

---
 config/datanode.example.toml      | 4 +++-
 config/frontend.example.toml      | 4 +++-
 config/metasrv.example.toml       | 4 +++-
 config/standalone.example.toml    | 4 +++-
 src/cmd/tests/load_config_test.rs | 8 ++++----
 src/common/runtime/src/global.rs  | 4 ++--
 6 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/config/datanode.example.toml b/config/datanode.example.toml
index 16ffbbb0a4..9454adff77 100644
--- a/config/datanode.example.toml
+++ b/config/datanode.example.toml
@@ -42,7 +42,9 @@ read_rt_size = 8
 ## The number of threads to execute the runtime for global write operations.
 write_rt_size = 8
 ## The number of threads to execute the runtime for global background operations.
-bg_rt_size = 8
+bg_rt_size = 4
+## The number of threads to execute the runtime for heartbeat operations.
+hb_rt_size = 2
 
 ## The heartbeat options.
 [heartbeat]
diff --git a/config/frontend.example.toml b/config/frontend.example.toml
index 4f4bd5bf3d..c2d460a613 100644
--- a/config/frontend.example.toml
+++ b/config/frontend.example.toml
@@ -12,7 +12,9 @@ read_rt_size = 8
 ## The number of threads to execute the runtime for global write operations.
 write_rt_size = 8
 ## The number of threads to execute the runtime for global background operations.
-bg_rt_size = 8
+bg_rt_size = 4
+## The number of threads to execute the runtime for heartbeat operations.
+hb_rt_size = 2
 
 ## The heartbeat options.
 [heartbeat]
diff --git a/config/metasrv.example.toml b/config/metasrv.example.toml
index 239533bd58..baac4b26f4 100644
--- a/config/metasrv.example.toml
+++ b/config/metasrv.example.toml
@@ -32,7 +32,9 @@ read_rt_size = 8
 ## The number of threads to execute the runtime for global write operations.
 write_rt_size = 8
 ## The number of threads to execute the runtime for global background operations.
-bg_rt_size = 8
+bg_rt_size = 4
+## The number of threads to execute the runtime for heartbeat operations.
+hb_rt_size = 2
 
 ## Procedure storage options.
 [procedure]
diff --git a/config/standalone.example.toml b/config/standalone.example.toml
index d6fcc3e894..8972b4a129 100644
--- a/config/standalone.example.toml
+++ b/config/standalone.example.toml
@@ -15,7 +15,9 @@ read_rt_size = 8
 ## The number of threads to execute the runtime for global write operations.
 write_rt_size = 8
 ## The number of threads to execute the runtime for global background operations.
-bg_rt_size = 8
+bg_rt_size = 4
+## The number of threads to execute the runtime for heartbeat operations.
+hb_rt_size = 2
 
 ## The HTTP server options.
 [http]
diff --git a/src/cmd/tests/load_config_test.rs b/src/cmd/tests/load_config_test.rs
index a25f1883c2..7128bf0edc 100644
--- a/src/cmd/tests/load_config_test.rs
+++ b/src/cmd/tests/load_config_test.rs
@@ -42,7 +42,7 @@ fn test_load_datanode_example_config() {
             read_rt_size: 8,
             write_rt_size: 8,
             bg_rt_size: 4,
-            hb_rt_size: 1,
+            hb_rt_size: 2,
         },
         component: DatanodeOptions {
             node_id: Some(42),
@@ -102,7 +102,7 @@ fn test_load_frontend_example_config() {
             read_rt_size: 8,
             write_rt_size: 8,
             bg_rt_size: 4,
-            hb_rt_size: 1,
+            hb_rt_size: 2,
         },
         component: FrontendOptions {
             default_timezone: Some("UTC".to_string()),
@@ -151,7 +151,7 @@ fn test_load_metasrv_example_config() {
             read_rt_size: 8,
             write_rt_size: 8,
             bg_rt_size: 4,
-            hb_rt_size: 1,
+            hb_rt_size: 2,
         },
         component: MetasrvOptions {
             selector: SelectorType::LeaseBased,
@@ -185,7 +185,7 @@ fn test_load_standalone_example_config() {
             read_rt_size: 8,
             write_rt_size: 8,
             bg_rt_size: 4,
-            hb_rt_size: 1,
+            hb_rt_size: 2,
         },
         component: StandaloneOptions {
             default_timezone: Some("UTC".to_string()),
diff --git a/src/common/runtime/src/global.rs b/src/common/runtime/src/global.rs
index 092ffc190b..984c6fc773 100644
--- a/src/common/runtime/src/global.rs
+++ b/src/common/runtime/src/global.rs
@@ -26,7 +26,7 @@ use crate::{Builder, JoinHandle, Runtime};
 const READ_WORKERS: usize = 8;
 const WRITE_WORKERS: usize = 8;
 const BG_WORKERS: usize = 4;
-const HB_WORKERS: usize = 1;
+const HB_WORKERS: usize = 2;
 
 /// The options for the global runtimes.
 #[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
@@ -49,7 +49,7 @@ impl Default for RuntimeOptions {
             read_rt_size: cpus,
             write_rt_size: cpus,
             bg_rt_size: usize::max(cpus / 2, 1),
-            hb_rt_size: 1,
+            hb_rt_size: HB_WORKERS,
         }
     }
 }