galera.galera_as_master_large, galera.galera_applier_ftwrl_table_alter failed in buildbot with WSREP has not yet prepared node

galera.galera_as_master_large 'innodb_plugin' w1 [ fail ]

        Test ended at 2017-11-10 16:02:07

CURRENT_TEST: galera.galera_as_master_large

Could not execute 'check-testcase' before testcase 'galera.galera_as_master_large' (res: 1):

mysqltest: Logging to '/dev/shm/var/1/tmp/check-mysqld_2.log'.

mysqltest: Results saved in '/dev/shm/var/1/tmp/check-mysqld_2.result'.

mysqltest: Connecting to server localhost:16021 (socket /dev/shm/var/tmp/1/mysqld.2.sock) as 'root', connection 'default', attempt 0 ...

mysqltest: ... Connected.

mysqltest: Start processing test commands from './include/check-testcase.test' ...

mysqltest: At line 78: query 'call mtr.check_testcase()' failed: 1047: WSREP has not yet prepared node for application use

not ok

mysqltest failed but provided no output

galera.galera_applier_ftwrl_table_alter 'xtradb' w2 [ fail ]

        Test ended at 2017-11-10 17:11:42

CURRENT_TEST: galera.galera_applier_ftwrl_table_alter

Could not execute 'check-testcase' before testcase 'galera.galera_applier_ftwrl_table_alter' (res: 1):

mysqltest: Logging to '/run/shm/var/2/tmp/check-mysqld_2.log'.

mysqltest: Results saved in '/run/shm/var/2/tmp/check-mysqld_2.result'.

mysqltest: Connecting to server localhost:16041 (socket /run/shm/var/tmp/2/mysqld.2.sock) as 'root', connection 'default', attempt 0 ...

mysqltest: ... Connected.

mysqltest: Start processing test commands from './include/check-testcase.test' ...

mysqltest: At line 78: query 'call mtr.check_testcase()' failed: 1047: WSREP has not yet prepared node for application use

not ok

mysqltest failed but provided no output