# CL 158950043 database/sql: add Drivers, returning list of registered drivers, Russ Cox <******@****.***>
pkg database/sql, func Drivers() []string

# CL 117280043 debug/dwarf: fix Reader panic on DW_TAG_unspecified_type, Derek Parker <******@****.***>
pkg debug/dwarf, method (*UnspecifiedType) Basic() *BasicType
pkg debug/dwarf, method (*UnspecifiedType) Common() *CommonType
pkg debug/dwarf, method (*UnspecifiedType) Size() int64

import (
	"context"
	"fmt"
	"strconv"
	"strings"
)

// markerTagVersion is the marker version.
// Should not need to be updated unless a fundamental change is made to the marker format.
const markerTagVersion = "v2"

// parseMarker will parse a marker possibly encoded with encodeMarker
func (o *listPathOptions) parseMarker() {
	s := o.Marker
	if !strings.Contains(s, "[minio_cache:"+markerTagVersion) {
		return
	}

It must be noted that if active-active replication is set up with delete marker replication, there is potential for duplicate delete markers to be created if both source and target concurrently set a Delete Marker or if one/both of the clusters went down at tandem before the replication event was synced.This is an unavoidable side-effect in active-active replication caused by allowing delete markers set on a object version with `REPLICA` status back to source.

![delete](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/versioning/versioning_DELETE_versionEnabled.png)

import org.apache.maven.api.annotations.Nonnull;

/**
 * Defines the contract for parsing Maven command-line arguments and creating an execution or invoker requests.
 *
 * @since 4.0.0
 */
@Experimental
public interface Parser {
    /**
     * Parses the given ParserRequest to create an {@link InvokerRequest}.
     * This method does interpret tool arguments.
     *

| `minio_cluster_usage_version_total`          | Total number of versions (includes delete marker) in a cluster |
| `minio_cluster_usage_deletemarker_total`     | Total number of delete markers in a cluster                    |
| `minio_cluster_bucket_total`                 | Total number of buckets in the cluster                         |

## Cluster Drive Metrics

	Expires              time.Time // Is only used in POST/PUT operations

	DeleteMarker            bool // Is only set in DELETE operations for delete marker replication
	CheckDMReplicationReady bool // Is delete marker ready to be replicated - set only during HEAD
	Tagging                 bool // Is only in GET/HEAD operations to return tagging metadata along with regular metadata and body.

}

func NewWalker(context *build.Context, root string) *Walker {
	w := &Walker{
		context:  context,
		root:     root,
		features: map[string]bool{},
		imported: map[string]*apiPackage{"unsafe": &apiPackage{Package: types.Unsafe}},
	}
	w.loadImports()
	return w
}

func (w *Walker) Features() (fs []string) {
	for f := range w.features {
		fs = append(fs, f)
	}

mkdir -p /tmp/data
for i in $(seq 1 10); do
	echo "T" >/tmp/data/file_${i}.txt
done

./mc mirror /tmp/data sitea/bucket/
./mc version enable sitea/bucket

./mc cp /tmp/data/file_1.txt sitea/bucket/marker
./mc rm sitea/bucket/marker

./mc mb siteb/bucket/
./mc version enable siteb/bucket/

echo "adding replication rule for site a -> site b"
./mc replicate add sitea/bucket/ \

        assertTrue(str.contains("Trans2QueryFSInformation["), "should start with class name");
        assertTrue(str.contains(",informationLevel=0x"), "should contain level field marker");
    }