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all: add read-only option to database (#22407)

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* all: add read-only option to database

* all: fixes tests

* cmd/geth: migrate flags

* cmd/geth: fix the compact

* cmd/geth: fix the format

* cmd/geth: fix log

* cmd: add chain-readonly

* core: add readonly notion to freezer

* core/rawdb: add log

* core/rawdb: fix freezer close

* cmd: fix

* cmd, core: construct db

* core: update tests
This commit is contained in:
gary rong
2021-03-23 02:06:30 +08:00
committed by GitHub
parent aab35600bc
commit 0c70b83e00
26 changed files with 267 additions and 192 deletions
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22
cmd/utils/flags.go
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@ -1628,7 +1628,7 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
if ctx.GlobalIsSet(DataDirFlag.Name) {
// Check if we have an already initialized chain and fall back to
// that if so. Otherwise we need to generate a new genesis spec.
chaindb := MakeChainDatabase(ctx, stack)
chaindb := MakeChainDatabase(ctx, stack, true)
if rawdb.ReadCanonicalHash(chaindb, 0) != (common.Hash{}) {
cfg.Genesis = nil // fallback to db content
}
@ -1749,7 +1749,7 @@ func SplitTagsFlag(tagsFlag string) map[string]string {
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
func MakeChainDatabase(ctx *cli.Context, stack *node.Node, readonly bool) ethdb.Database {
var (
cache = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheDatabaseFlag.Name) / 100
handles = MakeDatabaseHandles()
@ -1759,10 +1759,10 @@ func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
)
if ctx.GlobalString(SyncModeFlag.Name) == "light" {
name := "lightchaindata"
chainDb, err = stack.OpenDatabase(name, cache, handles, "")
chainDb, err = stack.OpenDatabase(name, cache, handles, "", readonly)
} else {
name := "chaindata"
chainDb, err = stack.OpenDatabaseWithFreezer(name, cache, handles, ctx.GlobalString(AncientFlag.Name), "")
chainDb, err = stack.OpenDatabaseWithFreezer(name, cache, handles, ctx.GlobalString(AncientFlag.Name), "", readonly)
}
if err != nil {
Fatalf("Could not open database: %v", err)
@ -1790,9 +1790,9 @@ func MakeGenesis(ctx *cli.Context) *core.Genesis {
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context, stack *node.Node, readOnly bool) (chain *core.BlockChain, chainDb ethdb.Database) {
func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chainDb ethdb.Database) {
var err error
chainDb = MakeChainDatabase(ctx, stack)
chainDb = MakeChainDatabase(ctx, stack, false) // TODO(rjl493456442) support read-only database
config, _, err := core.SetupGenesisBlock(chainDb, MakeGenesis(ctx))
if err != nil {
Fatalf("%v", err)
@ -1841,12 +1841,10 @@ func MakeChain(ctx *cli.Context, stack *node.Node, readOnly bool) (chain *core.B
cache.TrieDirtyLimit = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheGCFlag.Name) / 100
}
vmcfg := vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)}
var limit *uint64
if ctx.GlobalIsSet(TxLookupLimitFlag.Name) && !readOnly {
l := ctx.GlobalUint64(TxLookupLimitFlag.Name)
limit = &l
}
chain, err = core.NewBlockChain(chainDb, cache, config, engine, vmcfg, nil, limit)
// TODO(rjl493456442) disable snapshot generation/wiping if the chain is read only.
// Disable transaction indexing/unindexing by default.
chain, err = core.NewBlockChain(chainDb, cache, config, engine, vmcfg, nil, nil)
if err != nil {
Fatalf("Can't create BlockChain: %v", err)
}