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Optimize RocksDB DB open options #3316

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Feb 13, 2025
Merged

Optimize RocksDB DB open options #3316

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9 changes: 9 additions & 0 deletions linera-views/src/backends/rocks_db.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ const MAX_VALUE_SIZE: usize = 3221225072;
// 8388608 and so for offset reason we decrease by 400
const MAX_KEY_SIZE: usize = 8388208;

const DB_CACHE_SIZE: usize = 8 * 1024 * 1024; // 8 MiB
const DB_MAX_WRITE_BUFFER_NUMBER: i32 = 16;

/// The RocksDB client that we use.
type DB = rocksdb::DBWithThreadMode<rocksdb::MultiThreaded>;

Expand Down Expand Up @@ -288,6 +291,12 @@ impl RocksDbStoreInternal {
}
let mut options = rocksdb::Options::default();
options.create_if_missing(true);
options.create_missing_column_families(true);
// Flush in-memory buffer to disk more often
options.set_write_buffer_size(DB_CACHE_SIZE);
options.set_max_write_buffer_number(DB_MAX_WRITE_BUFFER_NUMBER);
options.set_compression_type(rocksdb::DBCompressionType::Lz4);

let db = DB::open(&options, path_buf)?;
let executor = RocksDbStoreExecutor {
db: Arc::new(db),
Expand Down