refactor: make the command entry cleaner (#3981)

* refactor: move run() in App trait

* refactor: introduce AppBuilder trait

* chore: remove AppBuilder

* refactor: remove Options struct and make the start() clean

* refactor: init once for common_telemetry::init_global_logging

src/cmd/src/bin/greptime.rs

@@ -14,12 +14,10 @@
 
 #![doc = include_str!("../../../../README.md")]
 
-use std::fmt;
-
 use clap::{Parser, Subcommand};
 use cmd::error::Result;
-use cmd::options::{GlobalOptions, Options};
-use cmd::{cli, datanode, frontend, log_versions, metasrv, standalone, start_app, App};
+use cmd::options::GlobalOptions;
+use cmd::{cli, datanode, frontend, log_versions, metasrv, standalone, App};
 use common_version::{short_version, version};
 
 #[derive(Parser)]
@@ -56,58 +54,6 @@ enum SubCommand {
     Cli(cli::Command),
 }
 
-impl SubCommand {
-    async fn build(self, opts: Options) -> Result<Box<dyn App>> {
-        let app: Box<dyn App> = match (self, opts) {
-            (SubCommand::Datanode(cmd), Options::Datanode(dn_opts)) => {
-                let app = cmd.build(*dn_opts).await?;
-                Box::new(app) as _
-            }
-            (SubCommand::Frontend(cmd), Options::Frontend(fe_opts)) => {
-                let app = cmd.build(*fe_opts).await?;
-                Box::new(app) as _
-            }
-            (SubCommand::Metasrv(cmd), Options::Metasrv(meta_opts)) => {
-                let app = cmd.build(*meta_opts).await?;
-                Box::new(app) as _
-            }
-            (SubCommand::Standalone(cmd), Options::Standalone(opts)) => {
-                let app = cmd.build(*opts).await?;
-                Box::new(app) as _
-            }
-            (SubCommand::Cli(cmd), Options::Cli(_)) => {
-                let app = cmd.build().await?;
-                Box::new(app) as _
-            }
-
-            _ => unreachable!(),
-        };
-        Ok(app)
-    }
-
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
-        match self {
-            SubCommand::Datanode(cmd) => cmd.load_options(global_options),
-            SubCommand::Frontend(cmd) => cmd.load_options(global_options),
-            SubCommand::Metasrv(cmd) => cmd.load_options(global_options),
-            SubCommand::Standalone(cmd) => cmd.load_options(global_options),
-            SubCommand::Cli(cmd) => cmd.load_options(global_options),
-        }
-    }
-}
-
-impl fmt::Display for SubCommand {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            SubCommand::Datanode(..) => write!(f, "greptime-datanode"),
-            SubCommand::Frontend(..) => write!(f, "greptime-frontend"),
-            SubCommand::Metasrv(..) => write!(f, "greptime-metasrv"),
-            SubCommand::Standalone(..) => write!(f, "greptime-standalone"),
-            SubCommand::Cli(_) => write!(f, "greptime-cli"),
-        }
-    }
-}
-
 #[cfg(not(windows))]
 #[global_allocator]
 static ALLOC: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
@@ -115,28 +61,43 @@ static ALLOC: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 #[tokio::main]
 async fn main() -> Result<()> {
     setup_human_panic();
+    log_versions(version!(), short_version!());
     start(Command::parse()).await
 }
 
 async fn start(cli: Command) -> Result<()> {
-    let subcmd = cli.subcmd;
-
-    let app_name = subcmd.to_string();
-
-    let opts = subcmd.load_options(&cli.global_options)?;
-
-    let _guard = common_telemetry::init_global_logging(
-        &app_name,
-        opts.logging_options(),
-        &cli.global_options.tracing_options(),
-        opts.node_id(),
-    );
-
-    log_versions(version!(), short_version!());
-
-    let app = subcmd.build(opts).await?;
-
-    start_app(app).await
+    match cli.subcmd {
+        SubCommand::Datanode(cmd) => {
+            cmd.build(cmd.load_options(&cli.global_options)?)
+                .await?
+                .run()
+                .await
+        }
+        SubCommand::Frontend(cmd) => {
+            cmd.build(cmd.load_options(&cli.global_options)?)
+                .await?
+                .run()
+                .await
+        }
+        SubCommand::Metasrv(cmd) => {
+            cmd.build(cmd.load_options(&cli.global_options)?)
+                .await?
+                .run()
+                .await
+        }
+        SubCommand::Standalone(cmd) => {
+            cmd.build(cmd.load_options(&cli.global_options)?)
+                .await?
+                .run()
+                .await
+        }
+        SubCommand::Cli(cmd) => {
+            cmd.build(cmd.load_options(&cli.global_options)?)
+                .await?
+                .run()
+                .await
+        }
+    }
 }
 
 fn setup_human_panic() {

src/cmd/src/cli.rs

@@ -30,15 +30,17 @@ mod upgrade;
 use async_trait::async_trait;
 use bench::BenchTableMetadataCommand;
 use clap::Parser;
-use common_telemetry::logging::LoggingOptions;
+use common_telemetry::logging::{LoggingOptions, TracingOptions};
 // pub use repl::Repl;
 use upgrade::UpgradeCommand;
 
 use self::export::ExportCommand;
 use crate::error::Result;
-use crate::options::{GlobalOptions, Options};
+use crate::options::GlobalOptions;
 use crate::App;
 
+pub const APP_NAME: &str = "greptime-cli";
+
 #[async_trait]
 pub trait Tool: Send + Sync {
     async fn do_work(&self) -> Result<()>;
@@ -57,7 +59,7 @@ impl Instance {
 #[async_trait]
 impl App for Instance {
     fn name(&self) -> &str {
-        "greptime-cli"
+        APP_NAME
     }
 
     async fn start(&mut self) -> Result<()> {
@@ -80,11 +82,18 @@ pub struct Command {
 }
 
 impl Command {
-    pub async fn build(self) -> Result<Instance> {
+    pub async fn build(&self, opts: LoggingOptions) -> Result<Instance> {
+        let _guard = common_telemetry::init_global_logging(
+            APP_NAME,
+            &opts,
+            &TracingOptions::default(),
+            None,
+        );
+
         self.cmd.build().await
     }
 
-    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<LoggingOptions> {
         let mut logging_opts = LoggingOptions::default();
 
         if let Some(dir) = &global_options.log_dir {
@@ -93,7 +102,7 @@ impl Command {
 
         logging_opts.level.clone_from(&global_options.log_level);
 
-        Ok(Options::Cli(Box::new(logging_opts)))
+        Ok(logging_opts)
     }
 }
 
@@ -106,7 +115,7 @@ enum SubCommand {
 }
 
 impl SubCommand {
-    async fn build(self) -> Result<Instance> {
+    async fn build(&self) -> Result<Instance> {
         match self {
             // SubCommand::Attach(cmd) => cmd.build().await,
             SubCommand::Upgrade(cmd) => cmd.build().await,

src/cmd/src/datanode.rs

@@ -32,9 +32,11 @@ use snafu::{OptionExt, ResultExt};
 use crate::error::{
     LoadLayeredConfigSnafu, MissingConfigSnafu, Result, ShutdownDatanodeSnafu, StartDatanodeSnafu,
 };
-use crate::options::{GlobalOptions, Options};
+use crate::options::GlobalOptions;
 use crate::App;
 
+pub const APP_NAME: &str = "greptime-datanode";
+
 pub struct Instance {
     datanode: Datanode,
 }
@@ -56,7 +58,7 @@ impl Instance {
 #[async_trait]
 impl App for Instance {
     fn name(&self) -> &str {
-        "greptime-datanode"
+        APP_NAME
     }
 
     async fn start(&mut self) -> Result<()> {
@@ -82,11 +84,11 @@ pub struct Command {
 }
 
 impl Command {
-    pub async fn build(self, opts: DatanodeOptions) -> Result<Instance> {
+    pub async fn build(&self, opts: DatanodeOptions) -> Result<Instance> {
         self.subcmd.build(opts).await
     }
 
-    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<DatanodeOptions> {
         self.subcmd.load_options(global_options)
     }
 }
@@ -97,13 +99,13 @@ enum SubCommand {
 }
 
 impl SubCommand {
-    async fn build(self, opts: DatanodeOptions) -> Result<Instance> {
+    async fn build(&self, opts: DatanodeOptions) -> Result<Instance> {
         match self {
             SubCommand::Start(cmd) => cmd.build(opts).await,
         }
     }
 
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<DatanodeOptions> {
         match self {
             SubCommand::Start(cmd) => cmd.load_options(global_options),
         }
@@ -135,17 +137,15 @@ struct StartCommand {
 }
 
 impl StartCommand {
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
-        Ok(Options::Datanode(Box::new(
-            self.merge_with_cli_options(
-                global_options,
-                DatanodeOptions::load_layered_options(
-                    self.config_file.as_deref(),
-                    self.env_prefix.as_ref(),
-                )
-                .context(LoadLayeredConfigSnafu)?,
-            )?,
-        )))
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<DatanodeOptions> {
+        self.merge_with_cli_options(
+            global_options,
+            DatanodeOptions::load_layered_options(
+                self.config_file.as_deref(),
+                self.env_prefix.as_ref(),
+            )
+            .context(LoadLayeredConfigSnafu)?,
+        )
     }
 
     // The precedence order is: cli > config file > environment variables > default values.
@@ -226,7 +226,14 @@ impl StartCommand {
         Ok(opts)
     }
 
-    async fn build(self, mut opts: DatanodeOptions) -> Result<Instance> {
+    async fn build(&self, mut opts: DatanodeOptions) -> Result<Instance> {
+        let _guard = common_telemetry::init_global_logging(
+            APP_NAME,
+            &opts.logging,
+            &opts.tracing,
+            opts.node_id.map(|x| x.to_string()),
+        );
+
         let plugins = plugins::setup_datanode_plugins(&mut opts)
             .await
             .context(StartDatanodeSnafu)?;
@@ -337,10 +344,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Datanode(options) = cmd.load_options(&GlobalOptions::default()).unwrap()
-        else {
-            unreachable!()
-        };
+        let options = cmd.load_options(&GlobalOptions::default()).unwrap();
 
         assert_eq!("127.0.0.1:3001".to_string(), options.rpc_addr);
         assert_eq!(Some(42), options.node_id);
@@ -399,23 +403,19 @@ mod tests {
 
     #[test]
     fn test_try_from_cmd() {
-        if let Options::Datanode(opt) = StartCommand::default()
+        let opt = StartCommand::default()
             .load_options(&GlobalOptions::default())
-            .unwrap()
-        {
-            assert_eq!(Mode::Standalone, opt.mode)
-        }
+            .unwrap();
+        assert_eq!(Mode::Standalone, opt.mode);
 
-        if let Options::Datanode(opt) = (StartCommand {
+        let opt = (StartCommand {
             node_id: Some(42),
             metasrv_addrs: Some(vec!["127.0.0.1:3002".to_string()]),
             ..Default::default()
         })
         .load_options(&GlobalOptions::default())
-        .unwrap()
-        {
-            assert_eq!(Mode::Distributed, opt.mode)
-        }
+        .unwrap();
+        assert_eq!(Mode::Distributed, opt.mode);
 
         assert!((StartCommand {
             metasrv_addrs: Some(vec!["127.0.0.1:3002".to_string()]),
@@ -447,7 +447,7 @@ mod tests {
             })
             .unwrap();
 
-        let logging_opt = options.logging_options();
+        let logging_opt = options.logging;
         assert_eq!("/tmp/greptimedb/test/logs", logging_opt.dir);
         assert_eq!("debug", logging_opt.level.as_ref().unwrap());
     }
@@ -527,11 +527,7 @@ mod tests {
                     ..Default::default()
                 };
 
-                let Options::Datanode(opts) =
-                    command.load_options(&GlobalOptions::default()).unwrap()
-                else {
-                    unreachable!()
-                };
+                let opts = command.load_options(&GlobalOptions::default()).unwrap();
 
                 // Should be read from env, env > default values.
                 let DatanodeWalConfig::RaftEngine(raft_engine_config) = opts.wal else {

src/cmd/src/frontend.rs

@@ -45,13 +45,15 @@ use snafu::{OptionExt, ResultExt};
 use crate::error::{
     self, InitTimezoneSnafu, LoadLayeredConfigSnafu, MissingConfigSnafu, Result, StartFrontendSnafu,
 };
-use crate::options::{GlobalOptions, Options};
+use crate::options::GlobalOptions;
 use crate::App;
 
 pub struct Instance {
     frontend: FeInstance,
 }
 
+pub const APP_NAME: &str = "greptime-frontend";
+
 impl Instance {
     pub fn new(frontend: FeInstance) -> Self {
         Self { frontend }
@@ -69,7 +71,7 @@ impl Instance {
 #[async_trait]
 impl App for Instance {
     fn name(&self) -> &str {
-        "greptime-frontend"
+        APP_NAME
     }
 
     async fn start(&mut self) -> Result<()> {
@@ -95,11 +97,11 @@ pub struct Command {
 }
 
 impl Command {
-    pub async fn build(self, opts: FrontendOptions) -> Result<Instance> {
+    pub async fn build(&self, opts: FrontendOptions) -> Result<Instance> {
         self.subcmd.build(opts).await
     }
 
-    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<FrontendOptions> {
         self.subcmd.load_options(global_options)
     }
 }
@@ -110,13 +112,13 @@ enum SubCommand {
 }
 
 impl SubCommand {
-    async fn build(self, opts: FrontendOptions) -> Result<Instance> {
+    async fn build(&self, opts: FrontendOptions) -> Result<Instance> {
         match self {
             SubCommand::Start(cmd) => cmd.build(opts).await,
         }
     }
 
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<FrontendOptions> {
         match self {
             SubCommand::Start(cmd) => cmd.load_options(global_options),
         }
@@ -156,17 +158,15 @@ pub struct StartCommand {
 }
 
 impl StartCommand {
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
-        Ok(Options::Frontend(Box::new(
-            self.merge_with_cli_options(
-                global_options,
-                FrontendOptions::load_layered_options(
-                    self.config_file.as_deref(),
-                    self.env_prefix.as_ref(),
-                )
-                .context(LoadLayeredConfigSnafu)?,
-            )?,
-        )))
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<FrontendOptions> {
+        self.merge_with_cli_options(
+            global_options,
+            FrontendOptions::load_layered_options(
+                self.config_file.as_deref(),
+                self.env_prefix.as_ref(),
+            )
+            .context(LoadLayeredConfigSnafu)?,
+        )
     }
 
     // The precedence order is: cli > config file > environment variables > default values.
@@ -239,7 +239,14 @@ impl StartCommand {
         Ok(opts)
     }
 
-    async fn build(self, mut opts: FrontendOptions) -> Result<Instance> {
+    async fn build(&self, mut opts: FrontendOptions) -> Result<Instance> {
+        let _guard = common_telemetry::init_global_logging(
+            APP_NAME,
+            &opts.logging,
+            &opts.tracing,
+            opts.node_id.clone(),
+        );
+
         #[allow(clippy::unnecessary_mut_passed)]
         let plugins = plugins::setup_frontend_plugins(&mut opts)
             .await
@@ -379,10 +386,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Frontend(opts) = command.load_options(&GlobalOptions::default()).unwrap()
-        else {
-            unreachable!()
-        };
+        let opts = command.load_options(&GlobalOptions::default()).unwrap();
 
         assert_eq!(opts.http.addr, "127.0.0.1:1234");
         assert_eq!(ReadableSize::mb(64), opts.http.body_limit);
@@ -430,10 +434,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Frontend(fe_opts) = command.load_options(&GlobalOptions::default()).unwrap()
-        else {
-            unreachable!()
-        };
+        let fe_opts = command.load_options(&GlobalOptions::default()).unwrap();
         assert_eq!(Mode::Distributed, fe_opts.mode);
         assert_eq!("127.0.0.1:4000".to_string(), fe_opts.http.addr);
         assert_eq!(Duration::from_secs(30), fe_opts.http.timeout);
@@ -486,7 +487,7 @@ mod tests {
             })
             .unwrap();
 
-        let logging_opt = options.logging_options();
+        let logging_opt = options.logging;
         assert_eq!("/tmp/greptimedb/test/logs", logging_opt.dir);
         assert_eq!("debug", logging_opt.level.as_ref().unwrap());
     }
@@ -562,11 +563,7 @@ mod tests {
                     ..Default::default()
                 };
 
-                let Options::Frontend(fe_opts) =
-                    command.load_options(&GlobalOptions::default()).unwrap()
-                else {
-                    unreachable!()
-                };
+                let fe_opts = command.load_options(&GlobalOptions::default()).unwrap();
 
                 // Should be read from env, env > default values.
                 assert_eq!(fe_opts.mysql.runtime_size, 11);

src/cmd/src/lib.rs

@@ -17,6 +17,8 @@
 use async_trait::async_trait;
 use common_telemetry::{error, info};
 
+use crate::error::Result;
+
 pub mod cli;
 pub mod datanode;
 pub mod error;
@@ -35,39 +37,39 @@ pub trait App: Send {
     fn name(&self) -> &str;
 
     /// A hook for implementor to make something happened before actual startup. Defaults to no-op.
-    async fn pre_start(&mut self) -> error::Result<()> {
+    async fn pre_start(&mut self) -> Result<()> {
         Ok(())
     }
 
-    async fn start(&mut self) -> error::Result<()>;
+    async fn start(&mut self) -> Result<()>;
 
     /// Waits the quit signal by default.
     fn wait_signal(&self) -> bool {
         true
     }
 
-    async fn stop(&self) -> error::Result<()>;
-}
+    async fn stop(&self) -> Result<()>;
 
-pub async fn start_app(mut app: Box<dyn App>) -> error::Result<()> {
-    info!("Starting app: {}", app.name());
+    async fn run(&mut self) -> Result<()> {
+        info!("Starting app: {}", self.name());
 
-    app.pre_start().await?;
+        self.pre_start().await?;
 
-    app.start().await?;
+        self.start().await?;
 
-    if app.wait_signal() {
-        if let Err(e) = tokio::signal::ctrl_c().await {
-            error!("Failed to listen for ctrl-c signal: {}", e);
-            // It's unusual to fail to listen for ctrl-c signal, maybe there's something unexpected in
-            // the underlying system. So we stop the app instead of running nonetheless to let people
-            // investigate the issue.
+        if self.wait_signal() {
+            if let Err(e) = tokio::signal::ctrl_c().await {
+                error!("Failed to listen for ctrl-c signal: {}", e);
+                // It's unusual to fail to listen for ctrl-c signal, maybe there's something unexpected in
+                // the underlying system. So we stop the app instead of running nonetheless to let people
+                // investigate the issue.
+            }
         }
-    }
 
-    app.stop().await?;
-    info!("Goodbye!");
-    Ok(())
+        self.stop().await?;
+        info!("Goodbye!");
+        Ok(())
+    }
 }
 
 /// Log the versions of the application, and the arguments passed to the cli.

src/cmd/src/metasrv.rs

@@ -24,9 +24,11 @@ use meta_srv::metasrv::MetasrvOptions;
 use snafu::ResultExt;
 
 use crate::error::{self, LoadLayeredConfigSnafu, Result, StartMetaServerSnafu};
-use crate::options::{GlobalOptions, Options};
+use crate::options::GlobalOptions;
 use crate::App;
 
+pub const APP_NAME: &str = "greptime-metasrv";
+
 pub struct Instance {
     instance: MetasrvInstance,
 }
@@ -40,7 +42,7 @@ impl Instance {
 #[async_trait]
 impl App for Instance {
     fn name(&self) -> &str {
-        "greptime-metasrv"
+        APP_NAME
     }
 
     async fn start(&mut self) -> Result<()> {
@@ -66,11 +68,11 @@ pub struct Command {
 }
 
 impl Command {
-    pub async fn build(self, opts: MetasrvOptions) -> Result<Instance> {
+    pub async fn build(&self, opts: MetasrvOptions) -> Result<Instance> {
         self.subcmd.build(opts).await
     }
 
-    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<MetasrvOptions> {
         self.subcmd.load_options(global_options)
     }
 }
@@ -81,13 +83,13 @@ enum SubCommand {
 }
 
 impl SubCommand {
-    async fn build(self, opts: MetasrvOptions) -> Result<Instance> {
+    async fn build(&self, opts: MetasrvOptions) -> Result<Instance> {
         match self {
             SubCommand::Start(cmd) => cmd.build(opts).await,
         }
     }
 
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<MetasrvOptions> {
         match self {
             SubCommand::Start(cmd) => cmd.load_options(global_options),
         }
@@ -128,17 +130,15 @@ struct StartCommand {
 }
 
 impl StartCommand {
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
-        Ok(Options::Metasrv(Box::new(
-            self.merge_with_cli_options(
-                global_options,
-                MetasrvOptions::load_layered_options(
-                    self.config_file.as_deref(),
-                    self.env_prefix.as_ref(),
-                )
-                .context(LoadLayeredConfigSnafu)?,
-            )?,
-        )))
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<MetasrvOptions> {
+        self.merge_with_cli_options(
+            global_options,
+            MetasrvOptions::load_layered_options(
+                self.config_file.as_deref(),
+                self.env_prefix.as_ref(),
+            )
+            .context(LoadLayeredConfigSnafu)?,
+        )
     }
 
     // The precedence order is: cli > config file > environment variables > default values.
@@ -212,7 +212,10 @@ impl StartCommand {
         Ok(opts)
     }
 
-    async fn build(self, mut opts: MetasrvOptions) -> Result<Instance> {
+    async fn build(&self, mut opts: MetasrvOptions) -> Result<Instance> {
+        let _guard =
+            common_telemetry::init_global_logging(APP_NAME, &opts.logging, &opts.tracing, None);
+
         let plugins = plugins::setup_metasrv_plugins(&mut opts)
             .await
             .context(StartMetaServerSnafu)?;
@@ -254,9 +257,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Metasrv(options) = cmd.load_options(&GlobalOptions::default()).unwrap() else {
-            unreachable!()
-        };
+        let options = cmd.load_options(&GlobalOptions::default()).unwrap();
         assert_eq!("127.0.0.1:3002".to_string(), options.bind_addr);
         assert_eq!(vec!["127.0.0.1:2380".to_string()], options.store_addrs);
         assert_eq!(SelectorType::LoadBased, options.selector);
@@ -289,9 +290,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Metasrv(options) = cmd.load_options(&GlobalOptions::default()).unwrap() else {
-            unreachable!()
-        };
+        let options = cmd.load_options(&GlobalOptions::default()).unwrap();
         assert_eq!("127.0.0.1:3002".to_string(), options.bind_addr);
         assert_eq!("127.0.0.1:3002".to_string(), options.server_addr);
         assert_eq!(vec!["127.0.0.1:2379".to_string()], options.store_addrs);
@@ -343,7 +342,7 @@ mod tests {
             })
             .unwrap();
 
-        let logging_opt = options.logging_options();
+        let logging_opt = options.logging;
         assert_eq!("/tmp/greptimedb/test/logs", logging_opt.dir);
         assert_eq!("debug", logging_opt.level.as_ref().unwrap());
     }
@@ -398,11 +397,7 @@ mod tests {
                     ..Default::default()
                 };
 
-                let Options::Metasrv(opts) =
-                    command.load_options(&GlobalOptions::default()).unwrap()
-                else {
-                    unreachable!()
-                };
+                let opts = command.load_options(&GlobalOptions::default()).unwrap();
 
                 // Should be read from env, env > default values.
                 assert_eq!(opts.bind_addr, "127.0.0.1:14002");

src/cmd/src/options.rs

@@ -13,20 +13,6 @@
 // limitations under the License.
 
 use clap::Parser;
-use common_telemetry::logging::{LoggingOptions, TracingOptions};
-use datanode::config::DatanodeOptions;
-use frontend::frontend::FrontendOptions;
-use meta_srv::metasrv::MetasrvOptions;
-
-use crate::standalone::StandaloneOptions;
-
-pub enum Options {
-    Datanode(Box<DatanodeOptions>),
-    Frontend(Box<FrontendOptions>),
-    Metasrv(Box<MetasrvOptions>),
-    Standalone(Box<StandaloneOptions>),
-    Cli(Box<LoggingOptions>),
-}
 
 #[derive(Parser, Default, Debug, Clone)]
 pub struct GlobalOptions {
@@ -43,32 +29,3 @@ pub struct GlobalOptions {
     #[arg(global = true)]
     pub tokio_console_addr: Option<String>,
 }
-
-impl GlobalOptions {
-    pub fn tracing_options(&self) -> TracingOptions {
-        TracingOptions {
-            #[cfg(feature = "tokio-console")]
-            tokio_console_addr: self.tokio_console_addr.clone(),
-        }
-    }
-}
-
-impl Options {
-    pub fn logging_options(&self) -> &LoggingOptions {
-        match self {
-            Options::Datanode(opts) => &opts.logging,
-            Options::Frontend(opts) => &opts.logging,
-            Options::Metasrv(opts) => &opts.logging,
-            Options::Standalone(opts) => &opts.logging,
-            Options::Cli(opts) => opts,
-        }
-    }
-
-    pub fn node_id(&self) -> Option<String> {
-        match self {
-            Options::Metasrv(_) | Options::Cli(_) | Options::Standalone(_) => None,
-            Options::Datanode(opt) => opt.node_id.map(|x| x.to_string()),
-            Options::Frontend(opt) => opt.node_id.clone(),
-        }
-    }
-}

src/cmd/src/standalone.rs

@@ -68,9 +68,11 @@ use crate::error::{
     ShutdownDatanodeSnafu, ShutdownFrontendSnafu, StartDatanodeSnafu, StartFrontendSnafu,
     StartProcedureManagerSnafu, StartWalOptionsAllocatorSnafu, StopProcedureManagerSnafu,
 };
-use crate::options::{GlobalOptions, Options};
+use crate::options::GlobalOptions;
 use crate::App;
 
+pub const APP_NAME: &str = "greptime-standalone";
+
 #[derive(Parser)]
 pub struct Command {
     #[clap(subcommand)]
@@ -78,11 +80,11 @@ pub struct Command {
 }
 
 impl Command {
-    pub async fn build(self, opts: StandaloneOptions) -> Result<Instance> {
+    pub async fn build(&self, opts: StandaloneOptions) -> Result<Instance> {
         self.subcmd.build(opts).await
     }
 
-    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    pub fn load_options(&self, global_options: &GlobalOptions) -> Result<StandaloneOptions> {
         self.subcmd.load_options(global_options)
     }
 }
@@ -93,13 +95,13 @@ enum SubCommand {
 }
 
 impl SubCommand {
-    async fn build(self, opts: StandaloneOptions) -> Result<Instance> {
+    async fn build(&self, opts: StandaloneOptions) -> Result<Instance> {
         match self {
             SubCommand::Start(cmd) => cmd.build(opts).await,
         }
     }
 
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<StandaloneOptions> {
         match self {
             SubCommand::Start(cmd) => cmd.load_options(global_options),
         }
@@ -212,7 +214,7 @@ pub struct Instance {
 #[async_trait]
 impl App for Instance {
     fn name(&self) -> &str {
-        "greptime-standalone"
+        APP_NAME
     }
 
     async fn start(&mut self) -> Result<()> {
@@ -287,17 +289,15 @@ pub struct StartCommand {
 }
 
 impl StartCommand {
-    fn load_options(&self, global_options: &GlobalOptions) -> Result<Options> {
-        Ok(Options::Standalone(Box::new(
-            self.merge_with_cli_options(
-                global_options,
-                StandaloneOptions::load_layered_options(
-                    self.config_file.as_deref(),
-                    self.env_prefix.as_ref(),
-                )
-                .context(LoadLayeredConfigSnafu)?,
-            )?,
-        )))
+    fn load_options(&self, global_options: &GlobalOptions) -> Result<StandaloneOptions> {
+        self.merge_with_cli_options(
+            global_options,
+            StandaloneOptions::load_layered_options(
+                self.config_file.as_deref(),
+                self.env_prefix.as_ref(),
+            )
+            .context(LoadLayeredConfigSnafu)?,
+        )
     }
 
     // The precedence order is: cli > config file > environment variables > default values.
@@ -373,7 +373,10 @@ impl StartCommand {
     #[allow(unreachable_code)]
     #[allow(unused_variables)]
     #[allow(clippy::diverging_sub_expression)]
-    async fn build(self, opts: StandaloneOptions) -> Result<Instance> {
+    async fn build(&self, opts: StandaloneOptions) -> Result<Instance> {
+        let _guard =
+            common_telemetry::init_global_logging(APP_NAME, &opts.logging, &opts.tracing, None);
+
         info!("Standalone start command: {:#?}", self);
         info!("Building standalone instance with {opts:#?}");
 
@@ -665,10 +668,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Standalone(options) = cmd.load_options(&GlobalOptions::default()).unwrap()
-        else {
-            unreachable!()
-        };
+        let options = cmd.load_options(&GlobalOptions::default()).unwrap();
         let fe_opts = options.frontend_options();
         let dn_opts = options.datanode_options();
         let logging_opts = options.logging;
@@ -721,7 +721,7 @@ mod tests {
             ..Default::default()
         };
 
-        let Options::Standalone(opts) = cmd
+        let opts = cmd
             .load_options(&GlobalOptions {
                 log_dir: Some("/tmp/greptimedb/test/logs".to_string()),
                 log_level: Some("debug".to_string()),
@@ -729,10 +729,7 @@ mod tests {
                 #[cfg(feature = "tokio-console")]
                 tokio_console_addr: None,
             })
-            .unwrap()
-        else {
-            unreachable!()
-        };
+            .unwrap();
 
         assert_eq!("/tmp/greptimedb/test/logs", opts.logging.dir);
         assert_eq!("debug", opts.logging.level.unwrap());
@@ -794,11 +791,7 @@ mod tests {
                     ..Default::default()
                 };
 
-                let Options::Standalone(opts) =
-                    command.load_options(&GlobalOptions::default()).unwrap()
-                else {
-                    unreachable!()
-                };
+                let opts = command.load_options(&GlobalOptions::default()).unwrap();
 
                 // Should be read from env, env > default values.
                 assert_eq!(opts.logging.dir, "/other/log/dir");

src/common/telemetry/src/logging.rs

@@ -124,139 +124,144 @@ pub fn init_global_logging(
     tracing_opts: &TracingOptions,
     node_id: Option<String>,
 ) -> Vec<WorkerGuard> {
+    static START: Once = Once::new();
     let mut guards = vec![];
-    let dir = &opts.dir;
-    let level = &opts.level;
-    let enable_otlp_tracing = opts.enable_otlp_tracing;
 
-    // Enable log compatible layer to convert log record to tracing span.
-    LogTracer::init().expect("log tracer must be valid");
+    START.call_once(|| {
+        let dir = &opts.dir;
+        let level = &opts.level;
+        let enable_otlp_tracing = opts.enable_otlp_tracing;
 
-    // stdout log layer.
-    let stdout_logging_layer = if opts.append_stdout {
-        let (stdout_writer, stdout_guard) = tracing_appender::non_blocking(std::io::stdout());
-        guards.push(stdout_guard);
+        // Enable log compatible layer to convert log record to tracing span.
+        LogTracer::init().expect("log tracer must be valid");
 
-        Some(
-            Layer::new()
-                .with_writer(stdout_writer)
-                .with_ansi(atty::is(atty::Stream::Stdout)),
-        )
-    } else {
-        None
-    };
-
-    // file log layer.
-    let rolling_appender = RollingFileAppender::new(Rotation::HOURLY, dir, app_name);
-    let (rolling_writer, rolling_writer_guard) = tracing_appender::non_blocking(rolling_appender);
-    let file_logging_layer = Layer::new().with_writer(rolling_writer).with_ansi(false);
-    guards.push(rolling_writer_guard);
-
-    // error file log layer.
-    let err_rolling_appender =
-        RollingFileAppender::new(Rotation::HOURLY, dir, format!("{}-{}", app_name, "err"));
-    let (err_rolling_writer, err_rolling_writer_guard) =
-        tracing_appender::non_blocking(err_rolling_appender);
-    let err_file_logging_layer = Layer::new()
-        .with_writer(err_rolling_writer)
-        .with_ansi(false);
-    guards.push(err_rolling_writer_guard);
-
-    // resolve log level settings from:
-    // - options from command line or config files
-    // - environment variable: RUST_LOG
-    // - default settings
-    let rust_log_env = std::env::var(EnvFilter::DEFAULT_ENV).ok();
-    let targets_string = level
-        .as_deref()
-        .or(rust_log_env.as_deref())
-        .unwrap_or(DEFAULT_LOG_TARGETS);
-    let filter = targets_string
-        .parse::<filter::Targets>()
-        .expect("error parsing log level string");
-    let sampler = opts
-        .tracing_sample_ratio
-        .as_ref()
-        .map(create_sampler)
-        .map(Sampler::ParentBased)
-        .unwrap_or(Sampler::ParentBased(Box::new(Sampler::AlwaysOn)));
-    // Must enable 'tokio_unstable' cfg to use this feature.
-    // For example: `RUSTFLAGS="--cfg tokio_unstable" cargo run -F common-telemetry/console -- standalone start`
-    #[cfg(feature = "tokio-console")]
-    let subscriber = {
-        let tokio_console_layer = if let Some(tokio_console_addr) = &tracing_opts.tokio_console_addr
-        {
-            let addr: std::net::SocketAddr = tokio_console_addr.parse().unwrap_or_else(|e| {
-                panic!("Invalid binding address '{tokio_console_addr}' for tokio-console: {e}");
-            });
-            println!("tokio-console listening on {addr}");
+        // stdout log layer.
+        let stdout_logging_layer = if opts.append_stdout {
+            let (stdout_writer, stdout_guard) = tracing_appender::non_blocking(std::io::stdout());
+            guards.push(stdout_guard);
 
             Some(
-                console_subscriber::ConsoleLayer::builder()
-                    .server_addr(addr)
-                    .spawn(),
+                Layer::new()
+                    .with_writer(stdout_writer)
+                    .with_ansi(atty::is(atty::Stream::Stdout)),
             )
         } else {
             None
         };
 
-        let stdout_logging_layer = stdout_logging_layer.map(|x| x.with_filter(filter.clone()));
+        // file log layer.
+        let rolling_appender = RollingFileAppender::new(Rotation::HOURLY, dir, app_name);
+        let (rolling_writer, rolling_writer_guard) =
+            tracing_appender::non_blocking(rolling_appender);
+        let file_logging_layer = Layer::new().with_writer(rolling_writer).with_ansi(false);
+        guards.push(rolling_writer_guard);
 
-        let file_logging_layer = file_logging_layer.with_filter(filter);
+        // error file log layer.
+        let err_rolling_appender =
+            RollingFileAppender::new(Rotation::HOURLY, dir, format!("{}-{}", app_name, "err"));
+        let (err_rolling_writer, err_rolling_writer_guard) =
+            tracing_appender::non_blocking(err_rolling_appender);
+        let err_file_logging_layer = Layer::new()
+            .with_writer(err_rolling_writer)
+            .with_ansi(false);
+        guards.push(err_rolling_writer_guard);
 
-        Registry::default()
-            .with(tokio_console_layer)
+        // resolve log level settings from:
+        // - options from command line or config files
+        // - environment variable: RUST_LOG
+        // - default settings
+        let rust_log_env = std::env::var(EnvFilter::DEFAULT_ENV).ok();
+        let targets_string = level
+            .as_deref()
+            .or(rust_log_env.as_deref())
+            .unwrap_or(DEFAULT_LOG_TARGETS);
+        let filter = targets_string
+            .parse::<filter::Targets>()
+            .expect("error parsing log level string");
+        let sampler = opts
+            .tracing_sample_ratio
+            .as_ref()
+            .map(create_sampler)
+            .map(Sampler::ParentBased)
+            .unwrap_or(Sampler::ParentBased(Box::new(Sampler::AlwaysOn)));
+        // Must enable 'tokio_unstable' cfg to use this feature.
+        // For example: `RUSTFLAGS="--cfg tokio_unstable" cargo run -F common-telemetry/console -- standalone start`
+        #[cfg(feature = "tokio-console")]
+        let subscriber = {
+            let tokio_console_layer =
+                if let Some(tokio_console_addr) = &tracing_opts.tokio_console_addr {
+                    let addr: std::net::SocketAddr = tokio_console_addr.parse().unwrap_or_else(|e| {
+                    panic!("Invalid binding address '{tokio_console_addr}' for tokio-console: {e}");
+                });
+                    println!("tokio-console listening on {addr}");
+
+                    Some(
+                        console_subscriber::ConsoleLayer::builder()
+                            .server_addr(addr)
+                            .spawn(),
+                    )
+                } else {
+                    None
+                };
+
+            let stdout_logging_layer = stdout_logging_layer.map(|x| x.with_filter(filter.clone()));
+
+            let file_logging_layer = file_logging_layer.with_filter(filter);
+
+            Registry::default()
+                .with(tokio_console_layer)
+                .with(stdout_logging_layer)
+                .with(file_logging_layer)
+                .with(err_file_logging_layer.with_filter(filter::LevelFilter::ERROR))
+        };
+
+        // consume the `tracing_opts`, to avoid "unused" warnings
+        let _ = tracing_opts;
+
+        #[cfg(not(feature = "tokio-console"))]
+        let subscriber = Registry::default()
+            .with(filter)
             .with(stdout_logging_layer)
             .with(file_logging_layer)
-            .with(err_file_logging_layer.with_filter(filter::LevelFilter::ERROR))
-    };
+            .with(err_file_logging_layer.with_filter(filter::LevelFilter::ERROR));
 
-    // consume the `tracing_opts`, to avoid "unused" warnings
-    let _ = tracing_opts;
-
-    #[cfg(not(feature = "tokio-console"))]
-    let subscriber = Registry::default()
-        .with(filter)
-        .with(stdout_logging_layer)
-        .with(file_logging_layer)
-        .with(err_file_logging_layer.with_filter(filter::LevelFilter::ERROR));
-
-    if enable_otlp_tracing {
-        global::set_text_map_propagator(TraceContextPropagator::new());
-        // otlp exporter
-        let tracer = opentelemetry_otlp::new_pipeline()
-            .tracing()
-            .with_exporter(
-                opentelemetry_otlp::new_exporter().tonic().with_endpoint(
-                    opts.otlp_endpoint
-                        .as_ref()
-                        .map(|e| format!("http://{}", e))
-                        .unwrap_or(DEFAULT_OTLP_ENDPOINT.to_string()),
-                ),
-            )
-            .with_trace_config(
-                opentelemetry_sdk::trace::config()
-                    .with_sampler(sampler)
-                    .with_resource(opentelemetry_sdk::Resource::new(vec![
-                        KeyValue::new(resource::SERVICE_NAME, app_name.to_string()),
-                        KeyValue::new(
-                            resource::SERVICE_INSTANCE_ID,
-                            node_id.unwrap_or("none".to_string()),
-                        ),
-                        KeyValue::new(resource::SERVICE_VERSION, env!("CARGO_PKG_VERSION")),
-                        KeyValue::new(resource::PROCESS_PID, std::process::id().to_string()),
-                    ])),
-            )
-            .install_batch(opentelemetry_sdk::runtime::Tokio)
-            .expect("otlp tracer install failed");
-        let tracing_layer = Some(tracing_opentelemetry::layer().with_tracer(tracer));
-        let subscriber = subscriber.with(tracing_layer);
-        tracing::subscriber::set_global_default(subscriber)
-            .expect("error setting global tracing subscriber");
-    } else {
-        tracing::subscriber::set_global_default(subscriber)
-            .expect("error setting global tracing subscriber");
-    }
+        if enable_otlp_tracing {
+            global::set_text_map_propagator(TraceContextPropagator::new());
+            // otlp exporter
+            let tracer = opentelemetry_otlp::new_pipeline()
+                .tracing()
+                .with_exporter(
+                    opentelemetry_otlp::new_exporter().tonic().with_endpoint(
+                        opts.otlp_endpoint
+                            .as_ref()
+                            .map(|e| format!("http://{}", e))
+                            .unwrap_or(DEFAULT_OTLP_ENDPOINT.to_string()),
+                    ),
+                )
+                .with_trace_config(
+                    opentelemetry_sdk::trace::config()
+                        .with_sampler(sampler)
+                        .with_resource(opentelemetry_sdk::Resource::new(vec![
+                            KeyValue::new(resource::SERVICE_NAME, app_name.to_string()),
+                            KeyValue::new(
+                                resource::SERVICE_INSTANCE_ID,
+                                node_id.unwrap_or("none".to_string()),
+                            ),
+                            KeyValue::new(resource::SERVICE_VERSION, env!("CARGO_PKG_VERSION")),
+                            KeyValue::new(resource::PROCESS_PID, std::process::id().to_string()),
+                        ])),
+                )
+                .install_batch(opentelemetry_sdk::runtime::Tokio)
+                .expect("otlp tracer install failed");
+            let tracing_layer = Some(tracing_opentelemetry::layer().with_tracer(tracer));
+            let subscriber = subscriber.with(tracing_layer);
+            tracing::subscriber::set_global_default(subscriber)
+                .expect("error setting global tracing subscriber");
+        } else {
+            tracing::subscriber::set_global_default(subscriber)
+                .expect("error setting global tracing subscriber");
+        }
+    });
 
     guards
 }

tests-integration/src/database.rs

@@ -274,9 +274,10 @@ mod tests {
     use clap::Parser;
     use client::Client;
     use cmd::error::Result as CmdResult;
-    use cmd::options::{GlobalOptions, Options};
+    use cmd::options::GlobalOptions;
     use cmd::{cli, standalone, App};
     use common_catalog::consts::{DEFAULT_CATALOG_NAME, DEFAULT_SCHEMA_NAME};
+    use common_telemetry::logging::LoggingOptions;
 
     use super::{Database, FlightContext};
 
@@ -312,12 +313,9 @@ mod tests {
             "--data-home",
             &*output_dir.path().to_string_lossy(),
         ]);
-        let Options::Standalone(standalone_opts) =
-            standalone.load_options(&GlobalOptions::default())?
-        else {
-            unreachable!()
-        };
-        let mut instance = standalone.build(*standalone_opts).await?;
+
+        let standalone_opts = standalone.load_options(&GlobalOptions::default()).unwrap();
+        let mut instance = standalone.build(standalone_opts).await?;
         instance.start().await?;
 
         let client = Client::with_urls(["127.0.0.1:4001"]);
@@ -348,7 +346,7 @@ mod tests {
             "--target",
             "create-table",
         ]);
-        let mut cli_app = cli.build().await?;
+        let mut cli_app = cli.build(LoggingOptions::default()).await?;
         cli_app.start().await?;
 
         instance.stop().await?;