b64179c82a
With this change we are directly testing how the command is executed when the args are passed Change-Id: Ibb33926014c9d71c928e0fd374bf4edc5a8a1232
104 lines
3.0 KiB
Go
104 lines
3.0 KiB
Go
// Copyright (C) 2023 Storj Labs, Inc.
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// See LICENSE for copying information.
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package internalcmd
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import (
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"encoding/json"
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"runtime"
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"github.com/spf13/cobra"
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"github.com/zeebo/errs"
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"go.uber.org/zap"
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"storj.io/private/process"
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"storj.io/storj/storagenode/iopriority"
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"storj.io/storj/storagenode/pieces"
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"storj.io/storj/storagenode/pieces/lazyfilewalker"
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"storj.io/storj/storagenode/storagenodedb"
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)
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// NewUsedSpaceFilewalkerCmd creates a new cobra command for running used-space calculation filewalker.
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func NewUsedSpaceFilewalkerCmd() *LazyFilewalkerCmd {
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var cfg FilewalkerCfg
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var runOpts RunOptions
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cmd := &cobra.Command{
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Use: lazyfilewalker.UsedSpaceFilewalkerCmdName,
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Short: "An internal subcommand used to run used-space calculation filewalker as a separate subprocess with lower IO priority",
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RunE: func(cmd *cobra.Command, args []string) error {
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runOpts.normalize(cmd)
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runOpts.config = &cfg
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return usedSpaceCmdRun(&runOpts)
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},
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FParseErrWhitelist: cobra.FParseErrWhitelist{
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UnknownFlags: true,
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},
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Hidden: true,
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Args: cobra.ExactArgs(0),
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}
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process.Bind(cmd, &cfg)
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return &LazyFilewalkerCmd{
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Command: cmd,
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RunOptions: &runOpts,
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}
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}
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// Run runs the UsedSpaceLazyFileWalker.
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func usedSpaceCmdRun(opts *RunOptions) (err error) {
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if opts.config.LowerIOPriority {
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if runtime.GOOS == "linux" {
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// Pin the current goroutine to the current OS thread, so we can set the IO priority
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// for the current thread.
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// This is necessary because Go does use CLONE_IO when creating new threads,
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// so they do not share a single IO context.
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runtime.LockOSThread()
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defer runtime.UnlockOSThread()
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}
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err = iopriority.SetLowIOPriority()
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if err != nil {
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return err
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}
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}
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log := opts.Logger
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// Decode the data struct received from the main process
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var req lazyfilewalker.UsedSpaceRequest
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if err = json.NewDecoder(opts.stdin).Decode(&req); err != nil {
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return errs.New("Error decoding data from stdin: %v", err)
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}
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if req.SatelliteID.IsZero() {
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return errs.New("SatelliteID is required")
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}
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// We still need the DB in this case because we still have to deal with v0 pieces.
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// Once we drop support for v0 pieces, we can remove this.
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db, err := storagenodedb.OpenExisting(opts.Ctx, log.Named("db"), opts.config.DatabaseConfig())
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if err != nil {
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return errs.New("Error starting master database on storage node: %v", err)
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}
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log.Info("Database started")
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defer func() {
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err = errs.Combine(err, db.Close())
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}()
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log.Info("used-space-filewalker started")
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filewalker := pieces.NewFileWalker(log, db.Pieces(), db.V0PieceInfo())
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total, contentSize, err := filewalker.WalkAndComputeSpaceUsedBySatellite(opts.Ctx, req.SatelliteID)
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if err != nil {
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return err
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}
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resp := lazyfilewalker.UsedSpaceResponse{PiecesTotal: total, PiecesContentSize: contentSize}
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log.Info("used-space-filewalker completed", zap.Int64("piecesTotal", total), zap.Int64("piecesContentSize", contentSize))
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// encode the response struct and write it to stdout
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return json.NewEncoder(opts.stdout).Encode(resp)
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}
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