frostfs-node/cmd/neofs-node/config/engine/shard/config.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

98 lines
2.5 KiB
Go

package shardconfig
import (
"fmt"
"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
blobstorconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/blobstor"
gcconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/gc"
metabaseconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/metabase"
piloramaconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/pilorama"
writecacheconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/writecache"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard/mode"
)
// Config is a wrapper over the config section
// which provides access to Shard configurations.
type Config config.Config
// From wraps config section into Config.
func From(c *config.Config) *Config {
return (*Config)(c)
}
// BlobStor returns "blobstor" subsection as a blobstorconfig.Config.
func (x *Config) BlobStor() *blobstorconfig.Config {
return blobstorconfig.From(
(*config.Config)(x).
Sub("blobstor"),
)
}
// Metabase returns "metabase" subsection as a metabaseconfig.Config.
func (x *Config) Metabase() *metabaseconfig.Config {
return metabaseconfig.From(
(*config.Config)(x).
Sub("metabase"),
)
}
// WriteCache returns "writecache" subsection as a writecacheconfig.Config.
func (x *Config) WriteCache() *writecacheconfig.Config {
return writecacheconfig.From(
(*config.Config)(x).
Sub("writecache"),
)
}
// Pilorama returns "pilorama" subsection as a piloramaconfig.Config.
func (x *Config) Pilorama() *piloramaconfig.Config {
return piloramaconfig.From(
(*config.Config)(x).
Sub("pilorama"),
)
}
// GC returns "gc" subsection as a gcconfig.Config.
func (x *Config) GC() *gcconfig.Config {
return gcconfig.From(
(*config.Config)(x).
Sub("gc"),
)
}
// RefillMetabase returns the value of "resync_metabase" config parameter.
//
// Returns false if the value is not a valid bool.
func (x *Config) RefillMetabase() bool {
return config.BoolSafe(
(*config.Config)(x),
"resync_metabase",
)
}
// Mode return the value of "mode" config parameter.
//
// Panics if read the value is not one of predefined
// shard modes.
func (x *Config) Mode() (m mode.Mode) {
s := config.StringSafe(
(*config.Config)(x),
"mode",
)
switch s {
case "read-write", "":
m = mode.ReadWrite
case "read-only":
m = mode.ReadOnly
case "degraded":
m = mode.Degraded
case "degraded-read-only":
m = mode.DegradedReadOnly
default:
panic(fmt.Sprintf("unknown shard mode: %s", s))
}
return
}