rocksdb.bulk_load_rev_cf failed in buildbot, result length mismatch

rocksdb.bulk_load_rev_cf                 w2 [ fail ]

        Test ended at 2017-08-20 08:56:48

CURRENT_TEST: rocksdb.bulk_load_rev_cf

--- /mnt/buildbot/build/mariadb-10.2.9/storage/rocksdb/mysql-test/rocksdb/r/bulk_load_rev_cf.result	2017-08-18 14:51:55.000000000 -0400

+++ /mnt/buildbot/build/mariadb-10.2.9/storage/rocksdb/mysql-test/rocksdb/r/bulk_load_rev_cf.reject	2017-08-20 08:56:46.605816060 -0400

@@ -21,6 +21,7 @@

 PRIMARY KEY(pk) COMMENT "rev:cf1",

 KEY(a)

 ) COLLATE 'latin1_bin' PARTITION BY KEY() PARTITIONS 4;

+connect  other,localhost,root,,;

 set session transaction isolation level repeatable read;

 select * from information_schema.rocksdb_dbstats where stat_type='DB_NUM_SNAPSHOTS';

 STAT_TYPE	VALUE

@@ -29,6 +30,7 @@

 select * from information_schema.rocksdb_dbstats where stat_type='DB_NUM_SNAPSHOTS';

 STAT_TYPE	VALUE

 DB_NUM_SNAPSHOTS	1

+connection default;

 set rocksdb_bulk_load=1;

 set rocksdb_bulk_load_size=100000;

 LOAD DATA INFILE <input_file> INTO TABLE t1;

@@ -79,4 +81,5 @@

 5000000

 longfilenamethatvalidatesthatthiswillgetdeleted.bulk_load.tmp

 test.bulk_load.tmp

+disconnect other;

 DROP TABLE t1, t2, t3;

mysqltest: Result length mismatch