fix upload

cmd/zfs-server/main.go

@@ -42,11 +42,13 @@ func main() {
 	srv.RegisterRoutes(mux)
 
 	// Create HTTP server with timeouts for security and reliability
+	// Note: ReadTimeout is set high to allow streaming uploads where data
+	// may come in bursts (zfs send can pause between chunks)
 	httpServer := &http.Server{
 		Addr:         ":" + cfg.Port,
 		Handler:      mux,
-		ReadTimeout:  30 * time.Second,  // Prevent slowloris attacks
+		ReadTimeout:  30 * time.Minute,  // Allow streaming uploads with pauses
-		WriteTimeout: 30 * time.Minute,  // Allow large file uploads
+		WriteTimeout: 30 * time.Minute,  // Allow large file downloads
 		IdleTimeout:  120 * time.Second, // Close idle connections
 	}
 

internal/server/storage.go

@@ -5,7 +5,9 @@ import (
 	"fmt"
 	"io"
 	"log"
+	"net/http"
 	"os/exec"
+	"time"
 
 	"github.com/minio/minio-go/v7"
 	"github.com/minio/minio-go/v7/pkg/credentials"
@@ -29,9 +31,23 @@ type S3Backend struct {
 
 // NewS3Backend creates a new S3 storage backend
 func NewS3Backend(endpoint, accessKey, secretKey, bucketName string, useSSL bool) (*S3Backend, error) {
+	// Create custom HTTP transport with extended timeouts for large file uploads
+	transport := &http.Transport{
+		Proxy: http.ProxyFromEnvironment,
+		// Extended timeouts for streaming large ZFS snapshots
+		ResponseHeaderTimeout: 5 * time.Minute,
+		ExpectContinueTimeout: 30 * time.Second,
+		IdleConnTimeout:       90 * time.Second,
+		// Connection pooling
+		MaxIdleConns:        10,
+		MaxIdleConnsPerHost: 10,
+		DisableCompression:  false,
+	}
+
 	client, err := minio.New(endpoint, &minio.Options{
 		Creds:     credentials.NewStaticV4(accessKey, secretKey, ""),
 		Secure:    useSSL,
+		Transport: transport,
 	})
 	if err != nil {
 		return nil, fmt.Errorf("failed to create S3 client: %v", err)