Arseny Sher 478cc37a70 Propagate standby apply LSN to pageserver to hold off GC. ...

To avoid pageserver gc'ing data needed by standby, propagate standby apply LSN
through standby -> safekeeper -> broker -> pageserver flow and hold off GC for
it. Iteration of GC resets the value to remove the horizon when standby goes
away -- pushes are assumed to happen at least once between gc iterations. As a
safety guard max allowed lag compared to normal GC horizon is hardcoded as 10GB.
Add test for the feature.

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>

2024-05-21 16:21:29 +03:00

..

.gitignore

Add storage_broker binary.

2022-11-23 22:05:59 +04:00

broker.proto

Propagate standby apply LSN to pageserver to hold off GC.

2024-05-21 16:21:29 +03:00