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Manually compact during bootstrapping iteration #3040
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StephenButtolph
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consensus
This involves consensus
storage
This involves storage primitives
labels
May 22, 2024
marun
approved these changes
May 22, 2024
dhrubabasu
approved these changes
May 22, 2024
abi87
reviewed
May 22, 2024
@@ -206,8 +210,22 @@ func execute( | |||
return err | |||
} | |||
|
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lastProcessedKey := iterator.Key() |
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nit: update comment on lines 200/201 to mention that we don't just reduce memory pressure but we also compact?
abi87
approved these changes
May 22, 2024
Closing in favor of #3045 |
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Why this should be merged
When introducing the interval tree into bootstrapping, the database was designed to support iteration rather than random reads to improve querying performance. However, it appears that holding the the iterator prevents compaction from occurring in a timely manner. Over time (after executing > 1M blocks) the iteration starts to slow down significantly. By manually compacting the database periodically, we manage to avoid this slowdown.
How this works
Periodically calls
Compact
every 128 iterator releases.How this was tested
6h
. Running master executed9.1M
of the blocks (out of13.7M
) in30h 22m