From 7f1ee5e9e11bf4790f5c57546d71c315e3089e4d Mon Sep 17 00:00:00 2001
From: Marat S <dungeon666master@protonmail.com>
Date: Fri, 28 Feb 2025 23:57:45 +0000
Subject: [PATCH] 2 level index and filter for state ttl >= 30 days

---
 tddb/td/db/RocksDb.cpp  | 6 ++++++
 tddb/td/db/RocksDb.h    | 1 +
 validator/db/celldb.cpp | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/tddb/td/db/RocksDb.cpp b/tddb/td/db/RocksDb.cpp
index 993da2db..803e18c4 100644
--- a/tddb/td/db/RocksDb.cpp
+++ b/tddb/td/db/RocksDb.cpp
@@ -78,6 +78,12 @@ Result<RocksDb> RocksDb::open(std::string path, RocksDbOptions options) {
     }
     if (options.enable_bloom_filter) {
       table_options.filter_policy.reset(rocksdb::NewBloomFilterPolicy(10, false));
+      if (options.two_level_index_and_filter) {
+        table_options.index_type = rocksdb::BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
+        table_options.partition_filters = true;
+        table_options.cache_index_and_filter_blocks = true;
+        table_options.pin_l0_filter_and_index_blocks_in_cache = true;
+      }
     }
     db_options.table_factory.reset(rocksdb::NewBlockBasedTableFactory(table_options));
 
diff --git a/tddb/td/db/RocksDb.h b/tddb/td/db/RocksDb.h
index 26f733a3..b0ae0659 100644
--- a/tddb/td/db/RocksDb.h
+++ b/tddb/td/db/RocksDb.h
@@ -64,6 +64,7 @@ struct RocksDbOptions {
   bool use_direct_reads = false;
   bool no_block_cache = false;
   bool enable_bloom_filter = false;
+  bool two_level_index_and_filter = false;
 };
 
 class RocksDb : public KeyValue {
diff --git a/validator/db/celldb.cpp b/validator/db/celldb.cpp
index 8a619a53..a68d8056 100644
--- a/validator/db/celldb.cpp
+++ b/validator/db/celldb.cpp
@@ -102,6 +102,8 @@ void CellDbIn::start_up() {
   }
   db_options.use_direct_reads = opts_->get_celldb_direct_io();
   db_options.enable_bloom_filter = !opts_->get_celldb_disable_bloom_filter();
+  db_options.two_level_index_and_filter = db_options.enable_bloom_filter 
+                                && opts_->state_ttl() >= 60 * 60 * 24 * 30; // 30 days
 
   if (opts_->get_celldb_in_memory()) {
     td::RocksDbOptions read_db_options;