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Keep a running blocksize count
Used in batch size estimation, avoids rereading already processed blocks during import
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@ -486,6 +486,13 @@ uint64_t BlockchainLMDB::get_estimated_batch_size(uint64_t batch_num_blocks) con
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{
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LOG_PRINT_L1("No existing blocks to check for average block size");
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}
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else if (m_cum_count)
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{
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avg_block_size = m_cum_size / m_cum_count;
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LOG_PRINT_L1("average block size across recent " << m_cum_count << " blocks: " << avg_block_size);
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m_cum_size = 0;
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m_cum_count = 0;
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}
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else
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{
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for (uint64_t block_num = block_start; block_num <= block_stop; ++block_num)
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@ -573,6 +580,8 @@ void BlockchainLMDB::add_block(const block& blk, const size_t& block_size, const
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if (result)
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throw0(DB_ERROR(std::string("Failed to add block hash to db transaction: ").append(mdb_strerror(result)).c_str()));
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m_cum_size += block_size;
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m_cum_count++;
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}
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void BlockchainLMDB::remove_block()
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@ -948,6 +957,8 @@ BlockchainLMDB::BlockchainLMDB(bool batch_transactions)
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m_write_batch_txn = nullptr;
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m_batch_active = false;
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m_height = 0;
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m_cum_size = 0;
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m_cum_count = 0;
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m_hardfork = nullptr;
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}
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@ -1211,6 +1222,8 @@ void BlockchainLMDB::reset()
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txn.commit();
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m_height = 0;
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m_num_outputs = 0;
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m_cum_size = 0;
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m_cum_count = 0;
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}
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std::vector<std::string> BlockchainLMDB::get_filenames() const
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@ -306,6 +306,8 @@ private:
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uint64_t m_height;
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uint64_t m_num_outputs;
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mutable uint64_t m_cum_size; // used in batch size estimation
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mutable int m_cum_count;
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std::string m_folder;
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mdb_txn_safe* m_write_txn; // may point to either a short-lived txn or a batch txn
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mdb_txn_safe* m_write_batch_txn; // persist batch txn outside of BlockchainLMDB
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