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pool: do fsync by non-empty update (e2) #11200

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merged 2 commits into from
Jul 18, 2024
Merged

pool: do fsync by non-empty update (e2) #11200

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AskAlexSharov Jul 17, 2024
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17 changes: 15 additions & 2 deletions erigon-lib/txpool/pool.go
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ import (
"github.com/google/btree"
"github.com/hashicorp/golang-lru/v2/simplelru"
"github.com/holiman/uint256"
"github.com/ledgerwatch/erigon-lib/common/hexutility"
"github.com/ledgerwatch/log/v3"

"github.com/ledgerwatch/erigon-lib/chain"
Expand Down Expand Up @@ -1967,8 +1968,19 @@ func (p *TxPool) flush(ctx context.Context, db kv.RwDB) (written uint64, err err
return 0, err
}

// fsync
if err := db.Update(ctx, func(tx kv.RwTx) error { return nil }); err != nil {
// fsync. increase state version - just to make RwTx non-empty (mdbx skips empty RwTx)
if err := db.Update(ctx, func(tx kv.RwTx) error {
v, err := tx.GetOne(kv.PoolInfo, PoolStateVersion)
if err != nil {
return err
}
var version uint64
if len(v) == 8 {
version = binary.BigEndian.Uint64(v)
}
version++
return tx.Put(kv.PoolInfo, PoolStateVersion, hexutility.EncodeTs(version))
}); err != nil {
return 0, err
}
return written, nil
Expand Down Expand Up @@ -2330,6 +2342,7 @@ var PoolChainConfigKey = []byte("chain_config")
var PoolLastSeenBlockKey = []byte("last_seen_block")
var PoolPendingBaseFeeKey = []byte("pending_base_fee")
var PoolPendingBlobFeeKey = []byte("pending_blob_fee")
var PoolStateVersion = []byte("state_version")

// recentlyConnectedPeers does buffer IDs of recently connected good peers
// then sync of pooled Transaction can happen to all of then at once
Expand Down