Valnodes forceprune (#1262)

* Update root.go

Add forceprune to CLI (Ability to compact/prune via CLI)

* Added Forceprune.go

Forceprune provides options to prune blockstore.db and state.db. By default, it would prune blockstore.db and state.db up to 14 days (unbounding period). In state.db while it keeps validator and consensus information up to 14 days it prunes abci responses (keeping only last 1000 blocks abci response).
If required, one can override 14 days of blocks.
Forceprune does not touch application.db or indexer.

* Added description for Forceprune option

* Update forceprune.go

* Fix db close

* Update cmd/osmosisd/cmd/forceprune.go

Co-authored-by: Roman <34196718+p0mvn@users.noreply.github.com>

* Update forceprune.go

Moved to const values, added defer close db

* Fix lint

Co-authored-by: Roman <34196718+p0mvn@users.noreply.github.com>
Co-authored-by: Dev Ojha <dojha@berkeley.edu>
(cherry picked from commit 15f131e)

cmd/osmosisd/cmd/forceprune.go

@@ -0,0 +1,160 @@
+package cmd
+
+// DONTCOVER
+
+import (
+	"fmt"
+	"os/exec"
+	"strconv"
+
+	"github.com/spf13/cobra"
+
+	"github.com/syndtr/goleveldb/leveldb"
+	"github.com/syndtr/goleveldb/leveldb/opt"
+	"github.com/syndtr/goleveldb/leveldb/util"
+	tmstore "github.com/tendermint/tendermint/store"
+	tmdb "github.com/tendermint/tm-db"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/tendermint/tendermint/config"
+)
+
+const (
+	batchMaxSize      = 1000
+	kValidators       = "validatorsKey:"
+	kConsensusParams  = "consensusParamsKey:"
+	kABCIResponses    = "abciResponsesKey:"
+	fullHeight        = "full_height"
+	minHeight         = "min_height"
+	defaultFullHeight = "188000"
+	defaultMinHeight  = "1000"
+)
+
+// get cmd to convert any bech32 address to an osmo prefix.
+func forceprune() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "forceprune",
+		Short: "Example osmosisd forceprune -f 188000 -m 1000, which would keep blockchain and state data of last 188000 blocks (approximately 2 weeks) and ABCI responses of last 1000 blocks.",
+		Long:  "Forceprune options prunes and compacts blockstore.db and state.db. One needs to shut down chain before running forceprune. By default it keeps last 188000 blocks (approximately 2 weeks of data) blockstore and state db (validator and consensus information) and 1000 blocks of abci responses from state.db. Everything beyond these heights in blockstore and state.db is pruned. ABCI Responses are stored in index db and so redundant especially if one is running pruned nodes. As a result we are removing ABCI data from state.db aggressively by default. One can override height for blockstore.db and state.db by using -f option and for abci response by using -m option. Example osmosisd forceprune -f 188000 -m 1000.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			full_height_flag, err := cmd.Flags().GetString(fullHeight)
+			if err != nil {
+				return err
+			}
+
+			min_height_flag, err := cmd.Flags().GetString(minHeight)
+			if err != nil {
+				return err
+			}
+
+			clientCtx := client.GetClientContextFromCmd(cmd)
+			conf := config.DefaultConfig()
+			db_path := clientCtx.HomeDir + "/" + conf.DBPath
+
+			cmdr := exec.Command("osmosisd", "status")
+			err = cmdr.Run()
+
+			if err == nil {
+				// continue only if throws errror
+				return nil
+			}
+
+			full_height, err := strconv.ParseInt(full_height_flag, 10, 64)
+			if err != nil {
+				return err
+			}
+
+			min_height, err := strconv.ParseInt(min_height_flag, 10, 64)
+			if err != nil {
+				return err
+			}
+
+			opts := opt.Options{
+				DisableSeeksCompaction: true,
+			}
+
+			db_bs, err := tmdb.NewGoLevelDBWithOpts("blockstore", db_path, &opts)
+			if err != nil {
+				return err
+			}
+
+			bs := tmstore.NewBlockStore(db_bs)
+			start_height := bs.Base()
+			current_height := bs.Height()
+
+			fmt.Println("Pruning Block Store ...")
+			prunedBlocks, err := bs.PruneBlocks(current_height - full_height)
+			defer db_bs.Close()
+			if err != nil {
+				return err
+			}
+			fmt.Println("Pruned Block Store ...", prunedBlocks)
+			db_bs.Close()
+
+			fmt.Println("Compacting Block Store ...")
+
+			db, err := leveldb.OpenFile(db_path+"/blockstore.db", &opts)
+			defer db.Close()
+			if err != nil {
+				return err
+			}
+			if err = db.CompactRange(*util.BytesPrefix([]byte{})); err != nil {
+				return err
+			}
+
+			db, err = leveldb.OpenFile(db_path+"/state.db", &opts)
+			if err != nil {
+				return err
+			}
+			stateDBKeys := []string{kValidators, kConsensusParams, kABCIResponses}
+			fmt.Println("Pruning State Store ...")
+			for i, s := range stateDBKeys {
+				fmt.Println(i, s)
+
+				retain_height := int64(0)
+				if s == kABCIResponses {
+					retain_height = current_height - min_height
+				} else {
+					retain_height = current_height - full_height
+				}
+
+				batch := new(leveldb.Batch)
+				curBatchSize := uint64(0)
+
+				fmt.Println(start_height, current_height, retain_height)
+
+				for c := start_height; c < retain_height; c++ {
+					batch.Delete([]byte(s + strconv.FormatInt(c, 10)))
+					curBatchSize++
+
+					if curBatchSize%batchMaxSize == 0 && curBatchSize > 0 {
+						err := db.Write(batch, nil)
+						if err != nil {
+							return err
+						}
+						batch.Reset()
+						batch = new(leveldb.Batch)
+					}
+				}
+
+				err := db.Write(batch, nil)
+				if err != nil {
+					return err
+				}
+				batch.Reset()
+			}
+
+			fmt.Println("Compacting State Store ...")
+			if err = db.CompactRange(*util.BytesPrefix([]byte{})); err != nil {
+				return err
+			}
+			fmt.Println("Done ...")
+
+			return nil
+		},
+	}
+
+	cmd.Flags().StringP(fullHeight, "f", defaultFullHeight, "Full height to chop to")
+	cmd.Flags().StringP(minHeight, "m", defaultMinHeight, "Min height for ABCI to chop to")
+	return cmd
+}

cmd/osmosisd/cmd/root.go

@@ -102,6 +102,7 @@ func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
 
 	rootCmd.AddCommand(
 		// genutilcli.InitCmd(osmosis.ModuleBasics, osmosis.DefaultNodeHome),
+		forceprune(),
 		InitCmd(osmosis.ModuleBasics, osmosis.DefaultNodeHome),
 		genutilcli.CollectGenTxsCmd(banktypes.GenesisBalancesIterator{}, osmosis.DefaultNodeHome),
 		genutilcli.MigrateGenesisCmd(),