我尝试使用跟踪箱实现一些集中式日志记录。我可以使用跟踪附加程序箱写入滚动文件,或使用以下代码写入 Graylog 应用程序:
let mut guards = Vec::new();
if let Some(log) = config.logs {
if let Some(file) = log.file {
let file_appender = tracing_appender::rolling::hourly(file.directory, file.filename);
let (non_blocking, guard) = tracing_appender::non_blocking(file_appender);
guards.push(guard);
let file_logger = tracing_subscriber::fmt()
.with_writer(non_blocking)
.init();
}
if let Some(graylog) = log.graylog {
let address: SocketAddr = graylog.host.parse().expect("Unable to parse graylog host address");
let bg_task = Logger::builder()
.additional_field("module_id", graylog.module_id)
.init_tcp(address)
.unwrap();
tokio::spawn(bg_task);
}
}
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如果日志配置仅包含.file或.graylog定义之一,则它可以工作,但如果我同时定义这两个应用程序,则应用程序会在启动时崩溃。
我认为存在冲突,因为两者都试图设置默认收集器。有什么方法可以定义两者来接受每个跨度和事件?
您可以Option<Layer>在with组合图层时使用:
let mut guards = Vec::new();
if let Some(log) = config.logs {
let file_log = if let Some(file) = log.file {
let file_appender = tracing_appender::rolling::hourly(file.directory, file.filename);
let (non_blocking, guard) = tracing_appender::non_blocking(file_appender);
guards.push(guard);
Some(fmt::Layer::new().with_writer(non_blocking))
} else {
None
};
let grey_log = if let Some(graylog) = log.graylog {
let address: SocketAddr = graylog
.host
.parse()
.expect("Unable to parse graylog host address");
let (layer, task) = tracing_gelf::Logger::builder().connect_tcp(address)?;
tokio::spawn(task);
Some(layer)
} else {
None
};
let mut subscriber = tracing_subscriber::registry()
.with(EnvFilter::...)
.with(file_log)
.with(grey_log);
}
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