Coming from: T272523#6794131
We need to clean up those old entries and just leave the concrete shard for that instance.
```
root@clouddb1013.eqiad.wmnet[heartbeat]> select * from heartbeat;
+----------------------------+-----------+-------------------+------------+-----------------------+-------------------
| ts | server_id | file | position | relay_master_log_file | exec_master_log_po
+----------------------------+-----------+-------------------+------------+-----------------------+-------------------
| 2012-08-22T23:48:33.001080 | 10645 | db35-bin.000112 | 489937000 | NULL | NUL
| 2013-04-16T19:58:27.000830 | 10655 | db45-bin.000563 | 587023799 | db1039-bin.000567 | 56809380
| 2013-04-17T19:16:14.000660 | 101628 | db1039-bin.000572 | 650180541 | NULL | NUL
| 2016-04-19T14:36:37.000700 | 103228 | db1058-bin.004408 | 510114119 | db2023-bin.002385 | 26314121
| 2018-07-18T06:01:44.001480 | 171970637 | db1052-bin.005945 | 479413784 | NULL | NUL
| 2021-02-02T10:21:32.001480 | 171970661 | db1083-bin.006268 | 351669379 | NULL | NUL
| 2017-04-26T09:51:46.001190 | 171970704 | db1049-bin.004713 | 788123851 | db2023-bin.004329 | 88114806
| 2019-11-14T06:01:21.000750 | 171974720 | db1067-bin.003024 | 445994072 | NULL | NUL
| 2017-11-16T17:15:23.000810 | 171974884 | db1063-bin.001382 | 234441239 | NULL | NUL
| 2017-04-28T19:30:15.000990 | 171978768 | db1063-bin.000042 | 1002606543 | db2023-bin.004338 | 78476004
| 2018-03-19T08:11:36.000620 | 171978777 | db1070-bin.001815 | 432216346 | NULL | NUL
| 2018-10-22T07:53:05.002070 | 180355171 | db2048-bin.004286 | 172403944 | db1067-bin.001687 | 37167004
| 2017-05-09T11:45:28.001080 | 180359179 | db2023-bin.004393 | 358980382 | db1063-bin.000097 | 89978013
| 2020-10-29T08:02:21.000720 | 180363268 | db2112-bin.002375 | 568497678 | db1083-bin.005621 | 3405317
+----------------------------+-----------+-------------------+------------+-----------------------+-------------------
14 rows in set (0.001 sec)
root@clouddb1013.eqiad.wmnet[heartbeat]> use heartbeat_p
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
root@clouddb1013.eqiad.wmnet[heartbeat_p]> select * from heartbeat;
+-------+----------------------------+----------------+
| shard | last_updated | lag |
+-------+----------------------------+----------------+
| NULL | 2013-04-17T19:16:14.000660 | 246035142.9993 |
| s1 | 2021-02-02T10:21:57.001170 | 0.0000 |
| s5 | 2018-03-19T08:11:36.000620 | 90814220.9994 |
+-------+----------------------------+----------------+
3 rows in set (0.001 sec)
```
Hosts to clean:
[] clouddb1013:3311
[] clouddb1013:3313
[] clouddb1014:3312
[] clouddb1014:3317
[] clouddb1015:3314
[] clouddb1015:3316
[] clouddb1016:3315
[] clouddb1016:3318
[] clouddb1017:3311
[] clouddb1017:3313
[] clouddb1018:3312
[] clouddb1018:3317
[] clouddb1019:3314
[] clouddb1019:3316
[] clouddb1020:3315
[] clouddb1020:3318