Add docs for target_region replicas field, make error message for it clearer
#668
| Job | Run time |
|---|---|
| 6s | |
| 12m 39s | |
| 12m 45s |
target_region replicas field, make error message for it clearer
#668
| Job | Run time |
|---|---|
| 6s | |
| 12m 39s | |
| 12m 45s |