Fixes

src/lib.rs

@@ -7,6 +7,8 @@ pub mod rebuild;
 
 use std::sync::Arc;
 
+const DEFAULT_BODY_LIMIT: usize = 256 * 1024 * 1024; // 256 MB
+
 pub struct Args {
     pub db_path: String,
     pub volumes: Vec<String>,
@@ -14,6 +16,15 @@ pub struct Args {
 }
 
 pub fn build_app(args: &Args) -> axum::Router {
+    if args.replicas > args.volumes.len() {
+        eprintln!(
+            "Error: replication factor ({}) exceeds number of volumes ({})",
+            args.replicas,
+            args.volumes.len()
+        );
+        std::process::exit(1);
+    }
+
     if let Some(parent) = std::path::Path::new(&args.db_path).parent() {
         std::fs::create_dir_all(parent).unwrap_or_else(|e| {
             eprintln!("Failed to create database directory: {e}");
@@ -37,5 +48,6 @@ pub fn build_app(args: &Args) -> axum::Router {
                 .delete(server::delete_key)
                 .head(server::head_key),
         )
+        .layer(axum::extract::DefaultBodyLimit::max(DEFAULT_BODY_LIMIT))
         .with_state(state)
 }