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Handle LogPoller edge case involving backfill followed by an error #11298

Merged
merged 1 commit into from
Dec 12, 2023
Merged

Handle LogPoller edge case involving backfill followed by an error #11298

merged 1 commit into from
Dec 12, 2023

Commits on Dec 12, 2023

  1. Handle edge case involving blocks not being found in the db 

    If there is a backfill followed by an error, logs get written to the
db but no blocks. This will make the logpoller (or backup log poller)
rely on the chain next time instead of the db to determine
lastFinalizedBlock, which could result in a gap in logs processed.
Fixing this by writing the last block in the backfil to the db along
with the logs. Its lastFinalizedBlock field will be set to its own
block number + 1, so if the db crashes it should start by pulling
the logs from that one.
    @reductionista
    reductionista committed Dec 12, 2023
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