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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| // Copyright 2021 Kava Labs, Inc. | ||
| // Copyright 2020 Cronos Labs, Inc. | ||
| // | ||
| // Derived from https://github.com/crypto-org-chain/cronos@496ce7e | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package opendb | ||
|
|
||
| import ( | ||
| "path/filepath" | ||
| "runtime" | ||
| "strings" | ||
|
|
||
| "github.com/cosmos/cosmos-sdk/server/types" | ||
| "github.com/linxGnu/grocksdb" | ||
| dbm "github.com/tendermint/tm-db" | ||
| ) | ||
|
|
||
| const BlockCacheSize = 1 << 30 | ||
|
|
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| func OpenDB(_ types.AppOptions, home string, backendType dbm.BackendType) (dbm.DB, error) { | ||
| dataDir := filepath.Join(home, "data") | ||
| if backendType == dbm.RocksDBBackend { | ||
| return openRocksdb(filepath.Join(dataDir, "application.db")) | ||
| } | ||
|
|
||
| return dbm.NewDB("application", backendType, dataDir) | ||
| } | ||
|
|
||
| func openRocksdb(dir string) (dbm.DB, error) { | ||
| opts, err := loadLatestOptions(dir) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| // customize rocksdb options | ||
| opts = NewRocksdbOptions(opts, false) | ||
|
|
||
| // func NewRocksDBWithOptions(name string, dir string, opts *grocksdb.Options) (*RocksDB, error) { | ||
| return dbm.NewRocksDBWithOptions("application", dir, opts) | ||
| } | ||
|
|
||
| // loadLatestOptions try to load options from existing db, returns nil if not exists. | ||
| func loadLatestOptions(dir string) (*grocksdb.Options, error) { | ||
| opts, err := grocksdb.LoadLatestOptions(dir, grocksdb.NewDefaultEnv(), true, grocksdb.NewLRUCache(BlockCacheSize)) | ||
| if err != nil { | ||
| // not found is not an error | ||
| if strings.HasPrefix(err.Error(), "NotFound: ") { | ||
| return nil, nil | ||
| } | ||
| return nil, err | ||
| } | ||
|
|
||
| cfNames := opts.ColumnFamilyNames() | ||
| cfOpts := opts.ColumnFamilyOpts() | ||
|
|
||
| for i := 0; i < len(cfNames); i++ { | ||
| if cfNames[i] == "default" { | ||
| return &cfOpts[i], nil | ||
| } | ||
| } | ||
|
|
||
| return opts.Options(), nil | ||
| } | ||
|
|
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| // NewRocksdbOptions build options for `application.db`, | ||
| // it overrides existing options if provided, otherwise create new one assuming it's a new database. | ||
| func NewRocksdbOptions(opts *grocksdb.Options, sstFileWriter bool) *grocksdb.Options { | ||
| if opts == nil { | ||
| opts = grocksdb.NewDefaultOptions() | ||
| // only enable dynamic-level-bytes on new db, don't override for existing db | ||
| opts.SetLevelCompactionDynamicLevelBytes(true) | ||
| } | ||
| opts.SetCreateIfMissing(true) | ||
| opts.IncreaseParallelism(runtime.NumCPU()) | ||
| opts.OptimizeLevelStyleCompaction(512 * 1024 * 1024) | ||
| opts.SetTargetFileSizeMultiplier(2) | ||
|
|
||
| // block based table options | ||
| bbto := grocksdb.NewDefaultBlockBasedTableOptions() | ||
|
|
||
| // 1G block cache | ||
| bbto.SetBlockCache(grocksdb.NewLRUCache(BlockCacheSize)) | ||
|
|
||
| // http://rocksdb.org/blog/2021/12/29/ribbon-filter.html | ||
| bbto.SetFilterPolicy(grocksdb.NewRibbonHybridFilterPolicy(9.9, 1)) | ||
|
|
||
| // partition index | ||
| // http://rocksdb.org/blog/2017/05/12/partitioned-index-filter.html | ||
| bbto.SetIndexType(grocksdb.KTwoLevelIndexSearchIndexType) | ||
| bbto.SetPartitionFilters(true) | ||
| bbto.SetOptimizeFiltersForMemory(true) | ||
|
|
||
| // hash index is better for iavl tree which mostly do point lookup. | ||
| bbto.SetDataBlockIndexType(grocksdb.KDataBlockIndexTypeBinarySearchAndHash) | ||
|
|
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| opts.SetBlockBasedTableFactory(bbto) | ||
|
|
||
| // in iavl tree, we almost always query existing keys | ||
| opts.SetOptimizeFiltersForHits(true) | ||
|
|
||
| // heavier compression option at bottommost level, | ||
| // 110k dict bytes is default in zstd library, | ||
| // train bytes is recommended to be set at 100x dict bytes. | ||
| opts.SetBottommostCompression(grocksdb.ZSTDCompression) | ||
| compressOpts := grocksdb.NewDefaultCompressionOptions() | ||
| compressOpts.Level = 12 | ||
| if !sstFileWriter { | ||
| compressOpts.MaxDictBytes = 110 * 1024 | ||
| opts.SetBottommostCompressionOptionsZstdMaxTrainBytes(compressOpts.MaxDictBytes*100, true) | ||
| } | ||
| opts.SetBottommostCompressionOptions(compressOpts, true) | ||
|
|
||
| return opts | ||
| } |
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