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Control mempool persistence using a command line parameter.

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Mempool persistence was added in
3f78562df5, and is always on. This commit
introduces a command-line parameter -persistmempool, which defaults to
true. When set to false:
- mempool.dat is not loaded when the node starts.
- mempool.dat is not written when the node stops.
This commit is contained in:
John Newbery 2017-03-09 17:12:25 -05:00
parent 02d64bd929
commit 91c91e140a
2 changed files with 9 additions and 4 deletions
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6
src/init.cpp
View File

@ -206,8 +206,9 @@ void Shutdown()
StopTorControl(); StopTorControl();
UnregisterNodeSignals(GetNodeSignals()); UnregisterNodeSignals(GetNodeSignals());
if (fDumpMempoolLater) if (fDumpMempoolLater && GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
DumpMempool(); DumpMempool();
}
if (fFeeEstimatesInitialized) if (fFeeEstimatesInitialized)
{ {
@ -339,6 +340,7 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS)); strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS));
strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE)); strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE));
strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY)); strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY));
strUsage += HelpMessageOpt("-persistmempool", strprintf(_("Whether to save the mempool on shutdown and load on restart (default: %u)"), DEFAULT_PERSIST_MEMPOOL));
strUsage += HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN)); strUsage += HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN));
strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
-GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS)); -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS));
@ -666,9 +668,11 @@ void ThreadImport(std::vector<boost::filesystem::path> vImportFiles)
StartShutdown(); StartShutdown();
} }
} // End scope of CImportingNow } // End scope of CImportingNow
if (GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
LoadMempool(); LoadMempool();
fDumpMempoolLater = !fRequestShutdown; fDumpMempoolLater = !fRequestShutdown;
} }
}
/** Sanity checks /** Sanity checks
* Ensure that Bitcoin is running in a usable environment with all * Ensure that Bitcoin is running in a usable environment with all

3
src/validation.h
View File

@ -131,7 +131,8 @@ static const bool DEFAULT_PERMIT_BAREMULTISIG = true;
static const bool DEFAULT_CHECKPOINTS_ENABLED = true; static const bool DEFAULT_CHECKPOINTS_ENABLED = true;
static const bool DEFAULT_TXINDEX = false; static const bool DEFAULT_TXINDEX = false;
static const unsigned int DEFAULT_BANSCORE_THRESHOLD = 100; static const unsigned int DEFAULT_BANSCORE_THRESHOLD = 100;
/** Default for -persistmempool */
static const bool DEFAULT_PERSIST_MEMPOOL = true;
/** Default for -mempoolreplacement */ /** Default for -mempoolreplacement */
static const bool DEFAULT_ENABLE_REPLACEMENT = true; static const bool DEFAULT_ENABLE_REPLACEMENT = true;
/** Default for using fee filter */ /** Default for using fee filter */