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Cap DuckDB compaction memory at 2 GB (#758) #762

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Merged
erikdarlingdata merged 1 commit into from
Mar 30, 2026
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Cap DuckDB compaction memory at 2 GB (#758) #762

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8 changes: 8 additions & 0 deletions Lite/Services/ArchiveService.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,14 @@ private void CompactParquetFiles()
using var con = new DuckDBConnection("DataSource=:memory:");
con.Open();

/* Cap memory to avoid multi-GB spikes decompressing large parquet archives.
DuckDB will spill excess to its temp directory automatically. */
using (var pragma = con.CreateCommand())
{
pragma.CommandText = "SET memory_limit = '2GB'; SET preserve_insertion_order = false;";
pragma.ExecuteNonQuery();
}

var totalMerged = 0;
var totalRemoved = 0;

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