mysql, postgres, cassandra: change kv key to base64 encoding

The exisitng key-value operation for stores using mysql, postgres, and maybe cassandra are already broken.

The kv is used to store hardlink, filer store signature and replication progress.

So users using hardlink and also uses mysql, postgres, or cassandra will have broken hard links.

Users using filer.sync will need to re-sync the files.

2 files changed, 6 insertions, 4 deletions

diff --git a/weed/filer/abstract_sql/abstract_sql_store_kv.go b/weed/filer/abstract_sql/abstract_sql_store_kv.go
index b5a662c6b..c368059df 100644
--- a/weed/filer/abstract_sql/abstract_sql_store_kv.go
+++ b/weed/filer/abstract_sql/abstract_sql_store_kv.go
@@ -3,6 +3,7 @@ package abstract_sql
 import (
 	"context"
 	"database/sql"
+	"encoding/base64"
 	"fmt"
 	"strings"
 
@@ -80,8 +81,8 @@ func genDirAndName(key []byte) (dirStr string, dirHash int64, name string) {
 	}
 
 	dirHash = int64(util.BytesToUint64(key[:8]))
-	dirStr = string(key[:8])
-	name = string(key[8:])
+	dirStr = base64.StdEncoding.EncodeToString(key[:8])
+	name = base64.StdEncoding.EncodeToString(key[8:])
 
 	return
 }
diff --git a/weed/filer/cassandra/cassandra_store_kv.go b/weed/filer/cassandra/cassandra_store_kv.go
index b6238cf0e..dafa9bb15 100644
--- a/weed/filer/cassandra/cassandra_store_kv.go
+++ b/weed/filer/cassandra/cassandra_store_kv.go
@@ -2,6 +2,7 @@ package cassandra
 
 import (
 	"context"
+	"encoding/base64"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/gocql/gocql"
@@ -54,8 +55,8 @@ func genDirAndName(key []byte) (dir string, name string) {
 		key = append(key, 0)
 	}
 
-	dir = string(key[:8])
-	name = string(key[8:])
+	dir = base64.StdEncoding.EncodeToString(key[:8])
+	name = base64.StdEncoding.EncodeToString(key[8:])
 
 	return
 }