diff --git a/plugins/inputs/mysql/v2/convert.go b/plugins/inputs/mysql/v2/convert.go
index 78f978fa0..d5b73ec7f 100644
--- a/plugins/inputs/mysql/v2/convert.go
+++ b/plugins/inputs/mysql/v2/convert.go
@@ -21,6 +21,10 @@ func ParseInt(value sql.RawBytes) (interface{}, error) {
 	return v, err
 }
 
+func ParseUint(value sql.RawBytes) (interface{}, error) {
+	return strconv.ParseUint(string(value), 10, 64)
+}
+
 func ParseBoolAsInteger(value sql.RawBytes) (interface{}, error) {
 	if bytes.EqualFold(value, []byte("YES")) || bytes.EqualFold(value, []byte("ON")) {
 		return int64(1), nil
@@ -29,6 +33,10 @@ func ParseBoolAsInteger(value sql.RawBytes) (interface{}, error) {
 	return int64(0), nil
 }
 
+func ParseString(value sql.RawBytes) (interface{}, error) {
+	return string(value), nil
+}
+
 func ParseGTIDMode(value sql.RawBytes) (interface{}, error) {
 	// https://dev.mysql.com/doc/refman/8.0/en/replication-mode-change-online-concepts.html
 	v := string(value)
@@ -58,6 +66,9 @@ func ParseValue(value sql.RawBytes) (interface{}, error) {
 	if val, err := strconv.ParseInt(string(value), 10, 64); err == nil {
 		return val, nil
 	}
+	if val, err := strconv.ParseUint(string(value), 10, 64); err == nil {
+		return val, nil
+	}
 	if val, err := strconv.ParseFloat(string(value), 64); err == nil {
 		return val, nil
 	}
@@ -70,12 +81,29 @@ func ParseValue(value sql.RawBytes) (interface{}, error) {
 }
 
 var GlobalStatusConversions = map[string]ConversionFunc{
-	"ssl_ctx_verify_depth": ParseInt,
-	"ssl_verify_depth":     ParseInt,
+	"innodb_available_undo_logs":    ParseUint,
+	"innodb_buffer_pool_pages_misc": ParseUint,
+	"innodb_data_pending_fsyncs":    ParseUint,
+	"ssl_ctx_verify_depth":          ParseUint,
+	"ssl_verify_depth":              ParseUint,
 }
 
+// see https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
+// see https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html
 var GlobalVariableConversions = map[string]ConversionFunc{
-	"gtid_mode": ParseGTIDMode,
+	"delay_key_write":                  ParseString, // ON, OFF, ALL
+	"enforce_gtid_consistency":         ParseString, // ON, OFF, WARN
+	"event_scheduler":                  ParseString, // YES, NO, DISABLED
+	"gtid_mode":                        ParseGTIDMode,
+	"have_openssl":                     ParseBoolAsInteger, // alias for have_ssl
+	"have_ssl":                         ParseBoolAsInteger, // YES, DISABLED
+	"have_symlink":                     ParseBoolAsInteger, // YES, NO, DISABLED
+	"session_track_gtids":              ParseString,
+	"session_track_transaction_info":   ParseString,
+	"slave_skip_errors":                ParseString,
+	"ssl_fips_mode":                    ParseString,
+	"transaction_write_set_extraction": ParseString,
+	"use_secondary_engine":             ParseString,
 }
 
 func ConvertGlobalStatus(key string, value sql.RawBytes) (interface{}, error) {
diff --git a/plugins/inputs/mysql/v2/convert_test.go b/plugins/inputs/mysql/v2/convert_test.go
index 47189c18d..43133eeb3 100644
--- a/plugins/inputs/mysql/v2/convert_test.go
+++ b/plugins/inputs/mysql/v2/convert_test.go
@@ -19,14 +19,14 @@ func TestConvertGlobalStatus(t *testing.T) {
 			name:        "default",
 			key:         "ssl_ctx_verify_depth",
 			value:       []byte("0"),
-			expected:    int64(0),
+			expected:    uint64(0),
 			expectedErr: nil,
 		},
 		{
 			name:        "overflow int64",
 			key:         "ssl_ctx_verify_depth",
 			value:       []byte("18446744073709551615"),
-			expected:    int64(9223372036854775807),
+			expected:    uint64(18446744073709551615),
 			expectedErr: nil,
 		},
 		{