62 lines
2.6 KiB
Go
62 lines
2.6 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package metainfo
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import (
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"go.uber.org/zap"
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"storj.io/storj/internal/dbutil"
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"storj.io/storj/internal/memory"
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"storj.io/storj/storage"
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"storj.io/storj/storage/boltdb"
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"storj.io/storj/storage/postgreskv"
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)
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const (
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// BoltPointerBucket is the string representing the bucket used for `PointerEntries` in BoltDB
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BoltPointerBucket = "pointers"
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)
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// RSConfig is a configuration struct that keeps details about default
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// redundancy strategy information
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type RSConfig struct {
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MaxBufferMem memory.Size `help:"maximum buffer memory (in bytes) to be allocated for read buffers" default:"4MiB"`
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ErasureShareSize memory.Size `help:"the size of each new erasure share in bytes" default:"256B"`
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MinThreshold int `help:"the minimum pieces required to recover a segment. k." releaseDefault:"29" devDefault:"4"`
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RepairThreshold int `help:"the minimum safe pieces before a repair is triggered. m." releaseDefault:"35" devDefault:"6"`
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SuccessThreshold int `help:"the desired total pieces for a segment. o." releaseDefault:"80" devDefault:"8"`
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MaxThreshold int `help:"the largest amount of pieces to encode to. n." releaseDefault:"130" devDefault:"10"`
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Validate bool `help:"validate redundancy scheme configuration" releaseDefault:"true" devDefault:"false"`
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}
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// Config is a configuration struct that is everything you need to start a metainfo
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type Config struct {
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DatabaseURL string `help:"the database connection string to use" releaseDefault:"postgres://" devDefault:"bolt://$CONFDIR/pointerdb.db"`
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MinRemoteSegmentSize memory.Size `default:"1240" help:"minimum remote segment size"`
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MaxInlineSegmentSize memory.Size `default:"8000" help:"maximum inline segment size"`
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Overlay bool `default:"true" help:"toggle flag if overlay is enabled"`
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BwExpiration int `default:"45" help:"lifespan of bandwidth agreements in days"`
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RS RSConfig `help:"redundancy scheme configuration"`
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}
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// NewStore returns database for storing pointer data
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func NewStore(logger *zap.Logger, dbURLString string) (db storage.KeyValueStore, err error) {
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driver, source, err := dbutil.SplitConnstr(dbURLString)
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if err != nil {
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return nil, err
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}
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switch driver {
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case "bolt":
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db, err = boltdb.New(source, BoltPointerBucket)
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case "postgresql", "postgres":
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db, err = postgreskv.New(source)
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default:
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err = Error.New("unsupported db scheme: %s", driver)
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}
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logger.Debug("Connected to:", zap.String("db source", source))
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return db, err
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}
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