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The blockchain prunes seven eighths of prunable tx data. This saves about two thirds of the blockchain size, while keeping the node useful as a sync source for an eighth of the blockchain. No other data is currently pruned. There are three ways to prune a blockchain: - run monerod with --prune-blockchain - run "prune_blockchain" in the monerod console - run the monero-blockchain-prune utility The first two will prune in place. Due to how LMDB works, this will not reduce the blockchain size on disk. Instead, it will mark parts of the file as free, so that future data will use that free space, causing the file to not grow until free space grows scarce. The third way will create a second database, a pruned copy of the original one. Since this is a new file, this one will be smaller than the original one. Once the database is pruned, it will stay pruned as it syncs. That is, there is no need to use --prune-blockchain again, etc.
112 lines
6.6 KiB
C++
112 lines
6.6 KiB
C++
// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <boost/program_options/variables_map.hpp>
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#include "cryptonote_basic/cryptonote_basic_impl.h"
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#include "cryptonote_basic/verification_context.h"
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#include <unordered_map>
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namespace tests
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{
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struct block_index {
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size_t height;
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crypto::hash id;
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crypto::hash longhash;
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cryptonote::block blk;
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cryptonote::blobdata blob;
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std::list<cryptonote::transaction> txes;
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block_index() : height(0), id(crypto::null_hash), longhash(crypto::null_hash) { }
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block_index(size_t _height, const crypto::hash &_id, const crypto::hash &_longhash, const cryptonote::block &_blk, const cryptonote::blobdata &_blob, const std::list<cryptonote::transaction> &_txes)
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: height(_height), id(_id), longhash(_longhash), blk(_blk), blob(_blob), txes(_txes) { }
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};
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class proxy_core
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{
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cryptonote::block m_genesis;
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std::list<crypto::hash> m_known_block_list;
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std::unordered_map<crypto::hash, block_index> m_hash2blkidx;
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crypto::hash m_lastblk;
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std::list<cryptonote::transaction> txes;
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bool add_block(const crypto::hash &_id, const crypto::hash &_longhash, const cryptonote::block &_blk, const cryptonote::blobdata &_blob);
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void build_short_history(std::list<crypto::hash> &m_history, const crypto::hash &m_start);
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public:
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void on_synchronized(){}
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void safesyncmode(const bool){}
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uint64_t get_current_blockchain_height(){return 1;}
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void set_target_blockchain_height(uint64_t) {}
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bool init(const boost::program_options::variables_map& vm);
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bool deinit(){return true;}
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bool get_short_chain_history(std::list<crypto::hash>& ids);
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bool get_stat_info(cryptonote::core_stat_info& st_inf){return true;}
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bool have_block(const crypto::hash& id);
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void get_blockchain_top(uint64_t& height, crypto::hash& top_id);
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bool handle_incoming_tx(const cryptonote::blobdata& tx_blob, cryptonote::tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay);
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bool handle_incoming_txs(const std::vector<cryptonote::blobdata>& tx_blobs, std::vector<cryptonote::tx_verification_context>& tvc, bool keeped_by_block, bool relayed, bool do_not_relay);
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bool handle_incoming_block(const cryptonote::blobdata& block_blob, cryptonote::block_verification_context& bvc, bool update_miner_blocktemplate = true);
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void pause_mine(){}
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void resume_mine(){}
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bool on_idle(){return true;}
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bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, cryptonote::NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp){return true;}
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bool handle_get_objects(cryptonote::NOTIFY_REQUEST_GET_OBJECTS::request& arg, cryptonote::NOTIFY_RESPONSE_GET_OBJECTS::request& rsp, cryptonote::cryptonote_connection_context& context){return true;}
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cryptonote::Blockchain &get_blockchain_storage() { throw std::runtime_error("Called invalid member function: please never call get_blockchain_storage on the TESTING class proxy_core."); }
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bool get_test_drop_download() {return true;}
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bool get_test_drop_download_height() {return true;}
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bool prepare_handle_incoming_blocks(const std::vector<cryptonote::block_complete_entry> &blocks) { return true; }
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bool cleanup_handle_incoming_blocks(bool force_sync = false) { return true; }
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uint64_t get_target_blockchain_height() const { return 1; }
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size_t get_block_sync_size(uint64_t height) const { return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT; }
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virtual void on_transaction_relayed(const cryptonote::blobdata& tx) {}
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cryptonote::network_type get_nettype() const { return cryptonote::MAINNET; }
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bool get_pool_transaction(const crypto::hash& id, cryptonote::blobdata& tx_blob) const { return false; }
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bool pool_has_tx(const crypto::hash &txid) const { return false; }
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bool get_blocks(uint64_t start_offset, size_t count, std::vector<std::pair<cryptonote::blobdata, cryptonote::block>>& blocks, std::vector<cryptonote::blobdata>& txs) const { return false; }
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bool get_transactions(const std::vector<crypto::hash>& txs_ids, std::vector<cryptonote::transaction>& txs, std::vector<crypto::hash>& missed_txs) const { return false; }
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bool get_block_by_hash(const crypto::hash &h, cryptonote::block &blk, bool *orphan = NULL) const { return false; }
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uint8_t get_ideal_hard_fork_version() const { return 0; }
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uint8_t get_ideal_hard_fork_version(uint64_t height) const { return 0; }
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uint8_t get_hard_fork_version(uint64_t height) const { return 0; }
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uint64_t get_earliest_ideal_height_for_version(uint8_t version) const { return 0; }
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cryptonote::difficulty_type get_block_cumulative_difficulty(uint64_t height) const { return 0; }
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bool fluffy_blocks_enabled() const { return false; }
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uint64_t prevalidate_block_hashes(uint64_t height, const std::vector<crypto::hash> &hashes) { return 0; }
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bool pad_transactions() const { return false; }
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uint32_t get_blockchain_pruning_seed() const { return 0; }
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bool prune_blockchain(uint32_t pruning_seed) const { return true; }
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};
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}
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