frostfs-node/cmd/neofs-cli/modules/control/shards_list.go
Evgenii Stratonikov 4944490ffb [#1559] local_object_storage: Move shard to the DegradedReadOnly mode
`Degraded` mode can be set by the administrator if needed.
Modifying operations in this mode can lead node into an inconsistent state
because metabase checks such as lock checking are not performed.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2022-07-21 17:56:06 +03:00

117 lines
3.1 KiB
Go

package control
import (
"bytes"
"encoding/json"
"fmt"
"github.com/mr-tron/base58"
rawclient "github.com/nspcc-dev/neofs-api-go/v2/rpc/client"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
"github.com/nspcc-dev/neofs-node/pkg/services/control"
"github.com/spf13/cobra"
)
var listShardsCmd = &cobra.Command{
Use: "list",
Short: "List shards of the storage node",
Long: "List shards of the storage node",
Run: listShards,
}
func initControlShardsListCmd() {
commonflags.InitWithoutRPC(listShardsCmd)
flags := listShardsCmd.Flags()
flags.String(controlRPC, controlRPCDefault, controlRPCUsage)
flags.Bool(commonflags.JSON, false, "Print shard info as a JSON array")
}
func listShards(cmd *cobra.Command, _ []string) {
pk := key.Get(cmd)
req := new(control.ListShardsRequest)
req.SetBody(new(control.ListShardsRequest_Body))
signRequest(cmd, pk, req)
cli := getClient(cmd, pk)
var resp *control.ListShardsResponse
var err error
err = cli.ExecRaw(func(client *rawclient.Client) error {
resp, err = control.ListShards(client, req)
return err
})
common.ExitOnErr(cmd, "rpc error: %w", err)
verifyResponse(cmd, resp.GetSignature(), resp.GetBody())
isJSON, _ := cmd.Flags().GetBool(commonflags.JSON)
if isJSON {
prettyPrintShardsJSON(cmd, resp.GetBody().GetShards())
} else {
prettyPrintShards(cmd, resp.GetBody().GetShards())
}
}
func prettyPrintShardsJSON(cmd *cobra.Command, ii []*control.ShardInfo) {
out := make([]map[string]interface{}, 0, len(ii))
for _, i := range ii {
out = append(out, map[string]interface{}{
"shard_id": base58.Encode(i.Shard_ID),
"mode": shardModeToString(i.GetMode()),
"metabase": i.GetMetabasePath(),
"blobstor": i.GetBlobstorPath(),
"writecache": i.GetWritecachePath(),
"error_count": i.GetErrorCount(),
})
}
buf := bytes.NewBuffer(nil)
enc := json.NewEncoder(buf)
enc.SetIndent("", " ")
common.ExitOnErr(cmd, "cannot shard info to JSON: %w", enc.Encode(out))
cmd.Print(buf.String()) // pretty printer emits newline, to no need for Println
}
func prettyPrintShards(cmd *cobra.Command, ii []*control.ShardInfo) {
for _, i := range ii {
pathPrinter := func(name, path string) string {
if path == "" {
return ""
}
return fmt.Sprintf("%s: %s\n", name, path)
}
cmd.Printf("Shard %s:\nMode: %s\n"+
pathPrinter("Metabase", i.GetMetabasePath())+
pathPrinter("Blobstor", i.GetBlobstorPath())+
pathPrinter("Write-cache", i.GetWritecachePath())+
pathPrinter("Pilorama", i.GetPiloramaPath())+
fmt.Sprintf("Error count: %d\n", i.GetErrorCount()),
base58.Encode(i.Shard_ID),
shardModeToString(i.GetMode()),
)
}
}
func shardModeToString(m control.ShardMode) string {
switch m {
case control.ShardMode_READ_WRITE:
return "read-write"
case control.ShardMode_READ_ONLY:
return "read-only"
case control.ShardMode_DEGRADED:
return "degraded"
case control.ShardMode_DEGRADED_READ_ONLY:
return "degraded-read-only"
default:
return "unknown"
}
}