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llmq: Clean old DKG contributions up (#4763)

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* llmq: Clean old DKG contributions up

* apply review suggestions and a bit more

* use scheduler
This commit is contained in:
UdjinM6 2022-04-19 09:08:57 +03:00 committed by GitHub
parent c66a2ec6fd
commit 26d774bd6f
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3 changed files with 50 additions and 0 deletions
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2
src/init.cpp
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@ -78,6 +78,7 @@
#include <llmq/blockprocessor.h>
#include <llmq/init.h>
#include <llmq/quorums.h>
#include <llmq/dkgsessionmgr.h>
#include <llmq/signing.h>
#include <llmq/snapshot.h>
#include <llmq/utils.h>
@ -2332,6 +2333,7 @@ bool AppInitMain(InitInterfaces& interfaces)
if (fMasternodeMode) {
scheduler.scheduleEvery(std::bind(&CCoinJoinServer::DoMaintenance, std::ref(coinJoinServer), std::ref(*g_connman)), 1 * 1000);
scheduler.scheduleEvery(std::bind(&llmq::CDKGSessionManager::CleanupOldContributions, std::ref(*llmq::quorumDKGSessionManager)), 60 * 60 * 1000);
}
if (gArgs.GetBoolArg("-statsenabled", DEFAULT_STATSD_ENABLE)) {

46
src/llmq/dkgsessionmgr.cpp
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@ -447,6 +447,52 @@ void CDKGSessionManager::CleanupCache() const
}
}
void CDKGSessionManager::CleanupOldContributions() const
{
if (db->IsEmpty()) {
return;
}
const auto prefixes = {DB_VVEC, DB_SKCONTRIB, DB_ENC_CONTRIB};
for (const auto& params : Params().GetConsensus().llmqs) {
// For how many blocks recent DKG info should be kept
const size_t MAX_STORE_DEPTH = 2 * params.signingActiveQuorumCount * params.dkgInterval;
LogPrint(BCLog::LLMQ, "CDKGSessionManager::%s -- looking for old entries for llmq type %d\n", __func__, uint8_t(params.type));
CDBBatch batch(*db);
size_t cnt_old{0}, cnt_all{0};
for (const auto& prefix : prefixes) {
std::unique_ptr<CDBIterator> pcursor(db->NewIterator());
auto start = std::make_tuple(prefix, params.type, uint256(), uint256());
decltype(start) k;
pcursor->Seek(start);
LOCK(cs_main);
while (pcursor->Valid()) {
if (!pcursor->GetKey(k) || std::get<0>(k) != prefix || std::get<1>(k) != params.type) {
break;
}
cnt_all++;
const CBlockIndex* pindexQuorum = LookupBlockIndex(std::get<2>(k));
if (pindexQuorum == nullptr || ::ChainActive().Tip()->nHeight - pindexQuorum->nHeight > MAX_STORE_DEPTH) {
// not found or too old
batch.Erase(k);
cnt_old++;
}
pcursor->Next();
}
pcursor.reset();
}
LogPrint(BCLog::LLMQ, "CDKGSessionManager::%s -- found %lld entries for llmq type %d\n", __func__, cnt_all, uint8_t(params.type));
if (cnt_old > 0) {
db->WriteBatch(batch);
LogPrint(BCLog::LLMQ, "CDKGSessionManager::%s -- removed %lld old entries for llmq type %d\n", __func__, cnt_old, uint8_t(params.type));
}
}
}
bool IsQuorumDKGEnabled()
{
return sporkManager.IsSporkActive(SPORK_17_QUORUM_DKG_ENABLED);

2
src/llmq/dkgsessionmgr.h
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@ -71,6 +71,8 @@ public:
/// Read encrypted (unverified) DKG contributions for the member with the given proTxHash from the llmqDb
bool GetEncryptedContributions(Consensus::LLMQType llmqType, const CBlockIndex* pQuorumBaseBlockIndex, const std::vector<bool>& validMembers, const uint256& proTxHash, std::vector<CBLSIESEncryptedObject<CBLSSecretKey>>& vecRet) const;
void CleanupOldContributions() const;
private:
void MigrateDKG();
void CleanupCache() const;