shell: add s3.clean.uploads to clean up stale multipart uploads

fix https://github.com/chrislusf/seaweedfs/issues/1855

weed/shell/command_s3_clean_uploads.go

@@ -0,0 +1,91 @@
+package shell
+
+import (
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"io"
+	"math"
+	"time"
+
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func init() {
+	Commands = append(Commands, &commandS3CleanUploads{})
+}
+
+type commandS3CleanUploads struct {
+}
+
+func (c *commandS3CleanUploads) Name() string {
+	return "s3.clean.uploads"
+}
+
+func (c *commandS3CleanUploads) Help() string {
+	return `clean up stale multipart uploads
+
+	Example:
+		s3.clean.uploads -replication 001
+
+`
+}
+
+func (c *commandS3CleanUploads) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	bucketCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	uploadedTimeAgo := bucketCommand.Duration("timeAgo", 24*time.Hour, "created time before now. \"1.5h\" or \"2h45m\". Valid time units are \"m\", \"h\"")
+	if err = bucketCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	var filerBucketsPath string
+	filerBucketsPath, err = readFilerBucketsPath(commandEnv)
+	if err != nil {
+		return fmt.Errorf("read buckets: %v", err)
+	}
+
+	var buckets []string
+	err = filer_pb.List(commandEnv, filerBucketsPath, "", func(entry *filer_pb.Entry, isLast bool) error {
+		buckets = append(buckets, entry.Name)
+		return nil
+	}, "", false, math.MaxUint32)
+	if err != nil {
+		return fmt.Errorf("list buckets under %v: %v", filerBucketsPath, err)
+	}
+
+	for _, bucket:= range buckets {
+		c.cleanupUploads(commandEnv, writer, filerBucketsPath, bucket, *uploadedTimeAgo)
+	}
+
+	return err
+
+}
+
+func (c *commandS3CleanUploads) cleanupUploads(commandEnv *CommandEnv, writer io.Writer, filerBucketsPath string, bucket string, timeAgo time.Duration) error {
+	uploadsDir := filerBucketsPath+"/"+bucket+"/.uploads"
+	var staleUploads []string
+	now := time.Now()
+	err := filer_pb.List(commandEnv, uploadsDir, "", func(entry *filer_pb.Entry, isLast bool) error {
+		ctime := time.Unix(entry.Attributes.Crtime, 0)
+		if ctime.Add(timeAgo).Before(now) {
+			staleUploads = append(staleUploads, entry.Name)
+		}
+		return nil
+	}, "", false, math.MaxUint32)
+	if err != nil {
+		return fmt.Errorf("list uploads under %v: %v", uploadsDir, err)
+	}
+
+	for _, staleUpload:= range staleUploads {
+		fmt.Fprintf(writer, "purge %s/%s\n", uploadsDir, staleUpload)
+
+		err = util.Delete(fmt.Sprintf("http://%s:%d%s/%s?recursive=true&ignoreRecursiveError=true",commandEnv.option.FilerHost, commandEnv.option.FilerHost,uploadsDir, staleUpload), "")
+		if err != nil {
+			return fmt.Errorf("purge %s/%s: %v", uploadsDir, staleUpload, err)
+		}
+	}
+
+	return nil
+
+}