2022-05-23 16:26:27 +00:00
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package control
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import (
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2023-09-18 07:05:17 +00:00
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"bytes"
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"fmt"
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2024-02-19 14:02:47 +00:00
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"sort"
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2022-10-14 08:36:54 +00:00
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"strings"
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2022-05-23 16:26:27 +00:00
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2023-03-07 13:38:26 +00:00
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rawclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
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"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/key"
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commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
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"github.com/mr-tron/base58"
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"github.com/spf13/cobra"
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)
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const (
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shardModeFlag = "mode"
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shardIDFlag = "id"
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shardAllFlag = "all"
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shardClearErrorsFlag = "clear-errors"
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)
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2022-10-14 08:36:54 +00:00
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// maps string command input to control.ShardMode. To support new mode, it's
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2022-10-15 07:57:06 +00:00
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// enough to add the map entry. Modes are automatically printed in command help
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// messages.
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var mShardModes = map[string]struct {
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val control.ShardMode
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// flag to support shard mode implicitly without help message. The flag is set
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// for values which are not expected to be set by users but still supported
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// for developers.
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unsafe bool
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}{
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"read-only": {val: control.ShardMode_READ_ONLY},
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"read-write": {val: control.ShardMode_READ_WRITE},
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"degraded-read-write": {val: control.ShardMode_DEGRADED, unsafe: true},
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"degraded-read-only": {val: control.ShardMode_DEGRADED_READ_ONLY},
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}
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// iterates over string representations of safe supported shard modes. Safe means
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// modes which are expected to be used by any user. All other supported modes
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// are for developers only.
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func iterateSafeShardModes(f func(string)) {
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for strMode, mode := range mShardModes {
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if !mode.unsafe {
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f(strMode)
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}
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}
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}
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// looks up for supported control.ShardMode represented by the given string.
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// Returns false if no corresponding mode exists.
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func lookUpShardModeFromString(str string) (control.ShardMode, bool) {
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mode, ok := mShardModes[str]
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if !ok {
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return control.ShardMode_SHARD_MODE_UNDEFINED, false
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}
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return mode.val, true
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}
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// looks up for string representation of supported shard mode. Returns false
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// if mode is not supported.
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func lookUpShardModeString(m control.ShardMode) (string, bool) {
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for strMode, mode := range mShardModes {
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if mode.val == m {
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return strMode, true
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}
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}
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return "", false
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}
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var setShardModeCmd = &cobra.Command{
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Use: "set-mode",
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Short: "Set work mode of the shard",
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Long: "Set work mode of the shard",
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Run: setShardMode,
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}
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func initControlSetShardModeCmd() {
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initControlFlags(setShardModeCmd)
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flags := setShardModeCmd.Flags()
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flags.StringSlice(shardIDFlag, nil, "List of shard IDs in base58 encoding")
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flags.Bool(shardAllFlag, false, "Process all shards")
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2022-10-15 07:57:06 +00:00
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modes := make([]string, 0)
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iterateSafeShardModes(func(strMode string) {
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modes = append(modes, "'"+strMode+"'")
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})
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2022-05-23 16:26:27 +00:00
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flags.String(shardModeFlag, "",
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fmt.Sprintf("New shard mode (%s)", strings.Join(modes, ", ")),
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)
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_ = setShardModeCmd.MarkFlagRequired(shardModeFlag)
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flags.Bool(shardClearErrorsFlag, false, "Set shard error count to 0")
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setShardModeCmd.MarkFlagsMutuallyExclusive(shardIDFlag, shardAllFlag)
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}
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func setShardMode(cmd *cobra.Command, _ []string) {
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pk := key.Get(cmd)
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strMode, _ := cmd.Flags().GetString(shardModeFlag)
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2022-10-15 07:57:06 +00:00
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mode, ok := lookUpShardModeFromString(strMode)
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if !ok {
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commonCmd.ExitOnErr(cmd, "", fmt.Errorf("unsupported mode %s", strMode))
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}
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req := new(control.SetShardModeRequest)
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body := new(control.SetShardModeRequest_Body)
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req.SetBody(body)
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body.SetMode(mode)
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body.SetShardIDList(getShardIDList(cmd))
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reset, _ := cmd.Flags().GetBool(shardClearErrorsFlag)
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body.ClearErrorCounter(reset)
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signRequest(cmd, pk, req)
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cli := getClient(cmd, pk)
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var resp *control.SetShardModeResponse
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var err error
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err = cli.ExecRaw(func(client *rawclient.Client) error {
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resp, err = control.SetShardMode(client, req)
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return err
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})
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commonCmd.ExitOnErr(cmd, "rpc error: %w", err)
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verifyResponse(cmd, resp.GetSignature(), resp.GetBody())
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cmd.Println("Shard mode update request successfully sent.")
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}
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2022-10-10 17:58:28 +00:00
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func getShardIDList(cmd *cobra.Command) [][]byte {
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all, _ := cmd.Flags().GetBool(shardAllFlag)
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if all {
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return nil
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}
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2024-01-30 15:18:58 +00:00
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return getShardIDListFromIDFlag(cmd, true)
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}
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func getShardIDListFromIDFlag(cmd *cobra.Command, withAllFlag bool) [][]byte {
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sidList, _ := cmd.Flags().GetStringSlice(shardIDFlag)
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if len(sidList) == 0 {
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if withAllFlag {
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commonCmd.ExitOnErr(cmd, "", fmt.Errorf("either --%s or --%s flag must be provided", shardIDFlag, shardAllFlag))
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} else {
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commonCmd.ExitOnErr(cmd, "", fmt.Errorf("--%s flag value must be provided", shardIDFlag))
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}
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}
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// We can sort the ID list and perform this check without additional allocations,
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// but preserving the user order is a nice thing to have.
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// Also, this is a CLI, we don't care too much about this.
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seen := make(map[string]struct{})
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for i := range sidList {
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if _, ok := seen[sidList[i]]; ok {
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commonCmd.ExitOnErr(cmd, "", fmt.Errorf("duplicated shard IDs: %s", sidList[i]))
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}
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seen[sidList[i]] = struct{}{}
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}
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res := make([][]byte, 0, len(sidList))
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for i := range sidList {
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raw, err := base58.Decode(sidList[i])
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commonCmd.ExitOnErr(cmd, "incorrect shard ID encoding: %w", err)
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res = append(res, raw)
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}
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2024-02-19 14:02:47 +00:00
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sort.Slice(res, func(i, j int) bool {
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return bytes.Compare(res[i], res[j]) < 0
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})
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2022-10-10 17:58:28 +00:00
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return res
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}
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