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core/rawdb: refactor db inspector for extending multiple ancient store (
#25896) This PR ports a few changes from PBSS: - Fix the snapshot generator waiter in case the generation is not even initialized - Refactor db inspector for ancient store
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| // Copyright 2022 The go-ethereum Authors | ||
| // This file is part of the go-ethereum library. | ||
| // | ||
| // The go-ethereum library is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Lesser General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // The go-ethereum library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public License | ||
| // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| package rawdb | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
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| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/ethdb" | ||
| ) | ||
|
|
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| type tableSize struct { | ||
| name string | ||
| size common.StorageSize | ||
| } | ||
|
|
||
| // freezerInfo contains the basic information of the freezer. | ||
| type freezerInfo struct { | ||
| name string // The identifier of freezer | ||
| head uint64 // The number of last stored item in the freezer | ||
| tail uint64 // The number of first stored item in the freezer | ||
| sizes []tableSize // The storage size per table | ||
| } | ||
|
|
||
| // count returns the number of stored items in the freezer. | ||
| func (info *freezerInfo) count() uint64 { | ||
| return info.head - info.tail + 1 | ||
| } | ||
|
|
||
| // size returns the storage size of the entire freezer. | ||
| func (info *freezerInfo) size() common.StorageSize { | ||
| var total common.StorageSize | ||
| for _, table := range info.sizes { | ||
| total += table.size | ||
| } | ||
| return total | ||
| } | ||
|
|
||
| // inspectFreezers inspects all freezers registered in the system. | ||
| func inspectFreezers(db ethdb.Database) ([]freezerInfo, error) { | ||
| var infos []freezerInfo | ||
| for _, freezer := range freezers { | ||
| switch freezer { | ||
| case chainFreezerName: | ||
| // Chain ancient store is a bit special. It's always opened along | ||
| // with the key-value store, inspect the chain store directly. | ||
| info := freezerInfo{name: freezer} | ||
| // Retrieve storage size of every contained table. | ||
| for table := range chainFreezerNoSnappy { | ||
| size, err := db.AncientSize(table) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| info.sizes = append(info.sizes, tableSize{name: table, size: common.StorageSize(size)}) | ||
| } | ||
| // Retrieve the number of last stored item | ||
| ancients, err := db.Ancients() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| info.head = ancients - 1 | ||
|
|
||
| // Retrieve the number of first stored item | ||
| tail, err := db.Tail() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| info.tail = tail | ||
| infos = append(infos, info) | ||
|
|
||
| default: | ||
| return nil, fmt.Errorf("unknown freezer, supported ones: %v", freezers) | ||
| } | ||
| } | ||
| return infos, nil | ||
| } | ||
|
|
||
| // InspectFreezerTable dumps out the index of a specific freezer table. The passed | ||
| // ancient indicates the path of root ancient directory where the chain freezer can | ||
| // be opened. Start and end specify the range for dumping out indexes. | ||
| // Note this function can only be used for debugging purposes. | ||
| func InspectFreezerTable(ancient string, freezerName string, tableName string, start, end int64) error { | ||
| var ( | ||
| path string | ||
| tables map[string]bool | ||
| ) | ||
| switch freezerName { | ||
| case chainFreezerName: | ||
| path, tables = resolveChainFreezerDir(ancient), chainFreezerNoSnappy | ||
| default: | ||
| return fmt.Errorf("unknown freezer, supported ones: %v", freezers) | ||
| } | ||
| noSnappy, exist := tables[tableName] | ||
| if !exist { | ||
| var names []string | ||
| for name := range tables { | ||
| names = append(names, name) | ||
| } | ||
| return fmt.Errorf("unknown table, supported ones: %v", names) | ||
| } | ||
| table, err := newFreezerTable(path, tableName, noSnappy, true) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| table.dumpIndexStdout(start, end) | ||
| return nil | ||
| } |
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