Update hooks.md

2022-01-14 02:49:16 +01:00 · 2022-01-14 02:49:16 +01:00 · 0dc9092d5c
parent e484824bbd
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--- a/doc/hooks.md
+++ b/doc/hooks.md
@ -68,6 +68,7 @@ The following variables are available on all hooks:
 - `GH_OST_INSPECTED_LAG` - lag in seconds (floating point) of inspected server
 - `GH_OST_HEARTBEAT_LAG` - lag in seconds (floating point) of heartbeat
 - `GH_OST_PROGRESS` - progress pct ([0..100], floating point) of migration
+- `GH_OST_ETA_SECONDS` - estimated duration until migration finishes in seconds
 - `GH_OST_MIGRATED_HOST`
 - `GH_OST_INSPECTED_HOST`
 - `GH_OST_EXECUTING_HOST`