+----+-------------+-----------------+------+---------+------+-------------------------------------------+-----------------------------+
| Id | User        | Host            | db   | Command | Time | State                                     | Info                        |
+----+-------------+-----------------+------+---------+------+-------------------------------------------+-----------------------------+
| 1  | system user |                 |      | Daemon  | 0    | Waiting for event from ndbcluster         |                             |
| 10 | root        | localhost:58525 | db_a | Query   | 1898 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 11 | root        | localhost:58526 | db_a | Query   | 1898 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 12 | root        | localhost:58527 | db_a | Query   | 1898 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 13 | root        | localhost:58528 | db_a | Query   | 1898 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 17 | root        | localhost:58532 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 18 | root        | localhost:58533 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 19 | root        | localhost:58534 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 20 | root        | localhost:58535 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 21 | root        | localhost:58536 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 22 | root        | localhost:58537 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 23 | root        | localhost:58538 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 24 | root        | localhost:58539 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 25 | root        | localhost:58540 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 26 | root        | localhost:58541 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 28 | root        | localhost:58543 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 29 | root        | localhost:58544 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 30 | root        | localhost:58546 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 31 | root        | localhost:58545 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 32 | root        | localhost:58547 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 33 | root        | localhost:58548 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 34 | root        | localhost:58549 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 35 | root        | localhost:58550 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 36 | root        | localhost:58551 | db_b | Query   | 1829 | copy to tmp table                         | alter table ... engine=ndb  |
| 37 | root        | localhost:58552 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 39 | root        | localhost:58554 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 41 | root        | localhost:58556 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 42 | root        | localhost:58557 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 44 | root        | localhost:58559 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 45 | root        | localhost:58560 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 46 | root        | localhost:58561 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 47 | root        | localhost:58562 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 48 | root        | localhost:58563 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 49 | root        | localhost:58564 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 50 | root        | localhost:58565 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 52 | root        | localhost:58567 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 53 | root        | localhost:58568 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 54 | root        | localhost:58569 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 55 | root        | localhost:58570 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 56 | root        | localhost:58571 | db_b | Query   | 1829 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 57 | root        | localhost:58572 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 58 | root        | localhost:58573 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 59 | root        | localhost:58574 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 60 | root        | localhost:58575 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 61 | root        | localhost:58576 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 62 | root        | localhost:58577 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 64 | root        | localhost:58579 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 65 | root        | localhost:58580 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 66 | root        | localhost:58581 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 67 | root        | localhost:58582 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 68 | root        | localhost:58583 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 69 | root        | localhost:58584 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 70 | root        | localhost:58585 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 72 | root        | localhost:58587 | db_b | Query   | 1828 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 74 | root        | localhost:58589 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 75 | root        | localhost:58590 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 76 | root        | localhost:58591 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 79 | root        | localhost:58594 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 80 | root        | localhost:58595 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 81 | root        | localhost:58596 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 82 | root        | localhost:58597 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 83 | root        | localhost:58598 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 84 | root        | localhost:58599 | db_b | Query   | 1827 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 85 | root        | localhost:58600 | db_b | Query   | 1826 | Waiting for ndbcluster global schema lock | alter table ... engine=ndb  |
| 89 | root        | localhost:58604 |      | Query   | 0    |                                           | show processlist            |
+----+-------------+-----------------+------+---------+------+-------------------------------------------+-------------+---------------+