refine previous commit

servers/slapd/back-meta/conn.c

@@ -1192,12 +1192,13 @@ retry_lock2:;
 					Debug( LDAP_DEBUG_TRACE, "%s: meta_back_getconn[%d]\n",
 						op->o_log_prefix, i, 0 );
 
-				} else if ( lerr == LDAP_UNAVAILABLE ) {
+				} else if ( lerr == LDAP_UNAVAILABLE && !META_BACK_ONERR_STOP( mi ) ) {
 					META_CANDIDATE_SET( &candidates[ i ] );
 					candidates[ i ].sr_err = LDAP_UNAVAILABLE;
 
-					Debug( LDAP_DEBUG_TRACE, "%s: meta_back_getconn[%d] unavailable\n",
-						op->o_log_prefix, i, 0 );
+					Debug( LDAP_DEBUG_TRACE, "%s: meta_back_getconn[%d] %s\n",
+						op->o_log_prefix, i,
+						mt->mt_isquarantined != LDAP_BACK_FQ_NO ? "quarantined" : "unavailable" );
 
 				} else {