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be6a045b8c
9e1cb1adf1800efe429e348650931f2669b0d2c0 [trivial/doc] Fix comment type (Amiti Uttarwar)
8f30260a67166a6ab7c0f33f7ec1990d3c31761e [doc] Update unbroadcast description in RPC results (Amiti Uttarwar)
750456d6f29c63d57af05bfbdd6035bb9c965de2 [trivial] Remove misleading 'const' (Amiti Uttarwar)
fa32e676e5833a5c5fc735ef00c0a80f5fab7a2c [test] Manage node connections better in mempool persist test (Amiti Uttarwar)
1f94bb0c744a103b633c1051e8fbc01e612097dc [doc] Provide rationale for randomization in scheduling. (Amiti Uttarwar)
9c8a55d9cb0ec73f10b196e79b637aa601c0a6b7 [mempool] Don't throw expected error message when upgrading (Amiti Uttarwar)
ba5498318233ab81decbc585e9619d8ffe2df1b0 [test] Test that wallet transactions aren't rebroadcast before 12 hours (Amiti Uttarwar)
00d44a534b4e5ae249b8011360c6b0f7dc731581 [test] P2P connection behavior should meet expectations (Amiti Uttarwar)
bd093ca15de762fdaf0937a0877d17b0c2bce16e [test] updates to unbroadcast test (Amiti Uttarwar)
dab298d9ab5a5a41685f437db9081fa7b395fa73 [docs] add release notes (Amiti Uttarwar)
Pull request description:
This PR is a follow up to #18038 which introduced the idea of an unbroadcast set & focuses mostly on documentation updates and test fixes. One small functionality update to not throw an expected error in `LoadMempool` when you upgrade software versions.
#18895 is another follow up to that addresses other functionality updates.
Background context:
The unbroadcast set is a mechanism for the mempool to track locally submitted transactions (via wallet or RPC). The node does a best-effort of delivering the transactions to the network via retries every 10-15 minutes until either a `GETDATA` is received or the transaction is removed from the mempool.
ACKs for top commit:
MarcoFalke:
ACK 9e1cb1adf1 👁
gzhao408:
ACK [`9e1cb1a`](9e1cb1adf1)
Tree-SHA512: 0cd51c4ca368b9dce92d50d73ec6e9df278a259e609eef2858f24cb8595ad07acc3db781d9eb0c351715f18fca5a2b4526838981fdb34a522427e9dc868bdaa6
112 lines
4.1 KiB
Python
Executable File
112 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2017-2020 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test that the mempool ensures transaction delivery by periodically sending
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to peers until a GETDATA is received."""
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import time
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from test_framework.mininode import P2PTxInvStore
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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create_confirmed_utxos,
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)
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MAX_INITIAL_BROADCAST_DELAY = 15 * 60 # 15 minutes in seconds
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class MempoolUnbroadcastTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 2
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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self.test_broadcast()
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self.test_txn_removal()
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def test_broadcast(self):
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self.log.info("Test that mempool reattempts delivery of locally submitted transaction")
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node = self.nodes[0]
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min_relay_fee = node.getnetworkinfo()["relayfee"]
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utxos = create_confirmed_utxos(min_relay_fee, node, 10)
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self.disconnect_nodes(0, 1)
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self.log.info("Generate transactions that only node 0 knows about")
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# generate a wallet txn
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addr = node.getnewaddress()
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wallet_tx_hsh = node.sendtoaddress(addr, 0.0001)
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# generate a txn using sendrawtransaction
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us0 = utxos.pop()
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inputs = [{"txid": us0["txid"], "vout": us0["vout"]}]
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outputs = {addr: 0.0001}
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tx = node.createrawtransaction(inputs, outputs)
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node.settxfee(min_relay_fee)
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txF = node.fundrawtransaction(tx)
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txFS = node.signrawtransactionwithwallet(txF["hex"])
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rpc_tx_hsh = node.sendrawtransaction(txFS["hex"])
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# check transactions are in unbroadcast using rpc
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mempoolinfo = self.nodes[0].getmempoolinfo()
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assert_equal(mempoolinfo['unbroadcastcount'], 2)
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mempool = self.nodes[0].getrawmempool(True)
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for tx in mempool:
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assert_equal(mempool[tx]['unbroadcast'], True)
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# check that second node doesn't have these two txns
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mempool = self.nodes[1].getrawmempool()
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assert rpc_tx_hsh not in mempool
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assert wallet_tx_hsh not in mempool
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# ensure that unbroadcast txs are persisted to mempool.dat
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self.restart_node(0)
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self.log.info("Reconnect nodes & check if they are sent to node 1")
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self.connect_nodes(0, 1)
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# fast forward into the future & ensure that the second node has the txns
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node.mockscheduler(MAX_INITIAL_BROADCAST_DELAY)
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self.sync_mempools(timeout=30)
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mempool = self.nodes[1].getrawmempool()
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assert rpc_tx_hsh in mempool
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assert wallet_tx_hsh in mempool
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# check that transactions are no longer in first node's unbroadcast set
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mempool = self.nodes[0].getrawmempool(True)
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for tx in mempool:
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assert_equal(mempool[tx]['unbroadcast'], False)
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self.log.info("Add another connection & ensure transactions aren't broadcast again")
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conn = node.add_p2p_connection(P2PTxInvStore())
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node.mockscheduler(MAX_INITIAL_BROADCAST_DELAY)
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time.sleep(2) # allow sufficient time for possibility of broadcast
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assert_equal(len(conn.get_invs()), 0)
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self.disconnect_nodes(0, 1)
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node.disconnect_p2ps()
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def test_txn_removal(self):
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self.log.info("Test that transactions removed from mempool are removed from unbroadcast set")
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node = self.nodes[0]
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# since the node doesn't have any connections, it will not receive
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# any GETDATAs & thus the transaction will remain in the unbroadcast set.
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addr = node.getnewaddress()
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txhsh = node.sendtoaddress(addr, 0.0001)
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# check transaction was removed from unbroadcast set due to presence in
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# a block
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removal_reason = "Removed {} from set of unbroadcast txns before confirmation that txn was sent out".format(txhsh)
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with node.assert_debug_log([removal_reason]):
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node.generate(1)
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if __name__ == "__main__":
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MempoolUnbroadcastTest().main()
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