rocksdb.bulk_load_unsorted fails

rocksdb.bulk_load_unsorted               w2 [ fail ]  timeout after 900 seconds

== /home/buildbot/maria-slave/power8-vlp06-bintar-debug/build/mysql-test/var/2/log/bulk_load_unsorted.log == 

test.t2	analyze	status	OK

test.t3	analyze	status	OK

SHOW TABLE STATUS WHERE name LIKE 't%';

Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment

t1	ROCKSDB	10	Fixed	5000000	#	#	#	#	0	NULL	NULL	NULL	NULL	latin1_swedish_ci	NULL		

t2	ROCKSDB	10	Fixed	5000000	#	#	#	#	0	NULL	NULL	NULL	NULL	latin1_swedish_ci	NULL		

t3	ROCKSDB	10	Fixed	5000000	#	#	#	#	0	NULL	NULL	NULL	NULL	latin1_swedish_ci	NULL	partitioned	

select count(a) from t1;

count(a)

5000000

select count(b) from t1;

count(b)

5000000

select count(a) from t2;

count(a)

5000000

select count(b) from t2;

count(b)

5000000

select count(a) from t3;