feat: gossip protocol

Cargo.toml

@@ -16,6 +16,7 @@
 members = [
   "api/client",
   "cmd/percas",
+  "crates/cluster",
   "crates/core",
   "crates/metrics",
   "crates/server",
@@ -37,6 +38,7 @@ version = "0.0.2"
 # Workspace members
 percas = { version = "0.0.2", path = "cmd/percas" }
 percas-client = { version = "0.0.2", path = "api/client" }
+percas-cluster = { version = "0.0.2", path = "crates/cluster" }
 percas-core = { version = "0.0.2", path = "crates/core" }
 percas-metrics = { version = "0.0.2", path = "crates/metrics" }
 percas-server = { version = "0.0.2", path = "crates/server" }
@@ -46,6 +48,7 @@ tests-toolkit = { version = "0.0.2", path = "tests/toolkit" }
 
 # Crates.io dependencies
 anstyle = { version = "1.0.10" }
+backon = { version = "1.5.0" }
 build-data = { version = "0.2.3" }
 clap = { version = "4.5.35", features = ["derive"] }
 const_format = { version = "0.2.34" }
@@ -90,17 +93,19 @@ poem = { version = "3.1.7" }
 pretty-hex = { version = "0.4.1" }
 pretty_assertions = { version = "1.4.1" }
 regex = { version = "1.11.1" }
-reqwest = { version = "0.12.15" }
+reqwest = { version = "0.12.15", features = ["json"] }
 scopeguard = { version = "1.2.0" }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0" }
+sha2 = { version = "0.10.8" }
 shadow-rs = { version = "1.0.0", default-features = false }
 tempfile = { version = "3.19.1" }
 test-harness = { version = "0.3.0" }
 thiserror = { version = "2.0" }
 tokio = { version = "1.44.2" }
 toml = { version = "0.8.20" }
 unindent = { version = "0.2.4" }
+uuid = { version = "1.16.0", features = ["v4", "serde"] }
 
 [workspace.lints.rust]
 unknown_lints = "deny"

cmd/percas/Cargo.toml

@@ -31,7 +31,6 @@ release = false
 clap = { workspace = true }
 ctrlc = { workspace = true }
 error-stack = { workspace = true }
-fastimer = { workspace = true }
 log = { workspace = true }
 percas-core = { workspace = true }
 percas-server = { workspace = true }

cmd/percas/src/start.rs

@@ -20,10 +20,10 @@ use error_stack::Result;
 use error_stack::ResultExt;
 use percas_core::Config;
 use percas_core::FoyerEngine;
+use percas_core::Runtime;
+use percas_core::make_runtime;
 use percas_core::num_cpus;
 use percas_server::PercasContext;
-use percas_server::runtime::Runtime;
-use percas_server::runtime::make_runtime;
 use percas_server::telemetry;
 
 use crate::Error;

crates/cluster/Cargo.toml

@@ -0,0 +1,48 @@
+# Copyright 2025 ScopeDB <contact@scopedb.io>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[package]
+name = "percas-cluster"
+publish = false
+
+description = "The cluster service for Percas."
+
+edition.workspace = true
+license.workspace = true
+readme.workspace = true
+repository.workspace = true
+version.workspace = true
+
+[package.metadata.release]
+release = false
+
+[dependencies]
+backon = { workspace = true }
+error-stack = { workspace = true }
+fastimer = { workspace = true }
+jiff = { workspace = true }
+log = { workspace = true }
+percas-core = { workspace = true }
+poem = { workspace = true }
+reqwest = { workspace = true }
+serde = { workspace = true }
+sha2 = { workspace = true }
+thiserror = { workspace = true }
+uuid = { workspace = true }
+
+[dev-dependencies]
+insta = { workspace = true }
+
+[lints]
+workspace = true