diff options
Diffstat (limited to 'src/backend/commands')
| -rw-r--r-- | src/backend/commands/vacuum.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c index ea1d8960f4c..7fc5c19e379 100644 --- a/src/backend/commands/vacuum.c +++ b/src/backend/commands/vacuum.c @@ -73,6 +73,21 @@ int vacuum_failsafe_age; int vacuum_multixact_failsafe_age; /* + * VacuumFailsafeActive is a defined as a global so that we can determine + * whether or not to re-enable cost-based vacuum delay when vacuuming a table. + * If failsafe mode has been engaged, we will not re-enable cost-based delay + * for the table until after vacuuming has completed, regardless of other + * settings. + * + * Only VACUUM code should inspect this variable and only table access methods + * should set it to true. In Table AM-agnostic VACUUM code, this variable is + * inspected to determine whether or not to allow cost-based delays. Table AMs + * are free to set it if they desire this behavior, but it is false by default + * and reset to false in between vacuuming each relation. + */ +bool VacuumFailsafeActive = false; + +/* * Variables for cost-based parallel vacuum. See comments atop * compute_parallel_delay to understand how it works. */ |