Marc-André Bombeck e34741c077 fix(google-health): write a dense collection page by page during a backfill ...

A full-history backfill read every heart-rate point of an account into one
array, mapped it into a second, and wrote the lot in one call; the cycle's
deferred-rollup ledger then kept one entry per written reading. On a watch
that records a reading a minute that is over a million points, and the
backfill ran a 1 GB heap out of memory within seconds, restarting the
instance it shares with the app (#1023).

The metric walk now hands each page to its write before requesting the
next, and both the Google Health and Fitbit ledgers collapse to one key per
touched type-day as they record. The heart-rate walk's page ceiling rises
from 1000 to 10000: at one point a minute the old ceiling is under two
years, a longer history always ended truncated, and the backfill retried
the whole walk on every attempt and every boot without completing.

2026-09-27 20:42:54 +02:00

..

fixtures/v137

Let a checkup be skipped or pushed back, and remember every outcome

2026-08-14 09:23:58 +02:00

integration

fix(google-health): write a dense collection page by page during a backfill

2026-09-27 20:42:54 +02:00