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actmsg.go
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actmsg.go
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// Package apc: API constant and control messages
/*
* Copyright (c) 2018-2024, NVIDIA CORPORATION. All rights reserved.
*/
package apc
import (
"strings"
"github.com/NVIDIA/aistore/cmn/cos"
jsoniter "github.com/json-iterator/go"
)
// ActMsg.Action
// includes Xaction.Kind == ActMsg.Action (when the action is asynchronous)
const (
ActCreateBck = "create-bck" // NOTE: compare w/ ActAddRemoteBck below
ActDestroyBck = "destroy-bck" // destroy bucket data and metadata
ActSetBprops = "set-bprops"
ActResetBprops = "reset-bprops"
ActSummaryBck = "summary-bck"
ActECEncode = "ec-encode" // erasure code a bucket
ActECGet = "ec-get" // read erasure coded objects
ActECPut = "ec-put" // erasure code objects
ActECRespond = "ec-resp" // respond to other targets' EC requests
ActCopyBck = "copy-bck"
ActETLBck = "etl-bck"
ActETLInline = "etl-inline"
ActDsort = "dsort"
ActDownload = "download"
ActBlobDl = "blob-download"
ActMakeNCopies = "make-n-copies"
ActPutCopies = "put-copies"
ActRebalance = "rebalance"
ActMoveBck = "move-bck"
ActResilver = "resilver"
ActElection = "election"
ActLRU = "lru"
ActStoreCleanup = "cleanup-store"
ActEvictRemoteBck = "evict-remote-bck" // evict remote bucket's data
ActInvalListCache = "inval-listobj-cache"
ActList = "list"
ActLoadLomCache = "load-lom-cache"
ActNewPrimary = "new-primary"
ActPromote = "promote"
ActRenameObject = "rename-obj"
// cp (reverse)
ActResetStats = "reset-stats"
ActResetConfig = "reset-config"
ActSetConfig = "set-config"
ActRotateLogs = "rotate-logs"
ActShutdownCluster = "shutdown" // see also: ActShutdownNode
// multi-object (via `ListRange`)
ActCopyObjects = "copy-listrange"
ActDeleteObjects = "delete-listrange"
ActETLObjects = "etl-listrange"
ActEvictObjects = "evict-listrange"
ActPrefetchObjects = "prefetch-listrange"
ActArchive = "archive" // see ArchiveMsg
ActAttachRemAis = "attach"
ActDetachRemAis = "detach"
ActEnableBackend = "enable-bend"
ActDisableBackend = "disable-bend"
// Node maintenance & cluster membership (see also ActRmNodeUnsafe below)
ActStartMaintenance = "start-maintenance" // put into maintenance state
ActStopMaintenance = "stop-maintenance" // cancel maintenance state
ActShutdownNode = "shutdown-node" // shutdown node
ActDecommissionNode = "decommission-node" // start rebalance and, when done, remove node from Smap
ActDecommissionCluster = "decommission" // decommission all nodes in the cluster (cleanup system data)
ActAdminJoinTarget = "admin-join-target"
ActSelfJoinTarget = "self-join-target"
ActAdminJoinProxy = "admin-join-proxy"
ActSelfJoinProxy = "self-join-proxy"
ActKeepaliveUpdate = "keepalive-update"
// IC
ActSendOwnershipTbl = "ic-send-own-tbl"
ActListenToNotif = "watch-xaction"
ActMergeOwnershipTbl = "ic-merge-own-tbl"
ActRegGlobalXaction = "reg-global-xaction"
)
// internal use
const (
ActAddRemoteBck = "add-remote-bck" // add to BMD existing remote bucket, usually on the fly
ActRmNodeUnsafe = "rm-unsafe" // primary => the node to be removed
ActStartGFN = "start-gfn" // get-from-neighbor
ActStopGFN = "stop-gfn" // off
ActCleanupMarkers = "cleanup-markers" // part of the target joining sequence
ActSelfRemove = "self-initiated-removal" // e.g., when losing last mountpath
)
const (
// Actions on mountpaths (/v1/daemon/mountpaths)
ActMountpathAttach = "attach-mp"
ActMountpathEnable = "enable-mp"
ActMountpathDetach = "detach-mp"
ActMountpathDisable = "disable-mp"
ActMountpathRescan = "rescan-mp"
ActMountpathFSHC = "fshc-mp"
// Actions on xactions
ActXactStop = Stop
ActXactStart = Start
// auxiliary
ActTransient = "transient" // transient - in-memory only
)
// xaction begin-commit phases and related control
const (
ActBegin = "begin"
ActCommit = "commit"
ActAbort = "abort"
ActQuery = "query"
)
const (
NodeMaintenance = "maintenance"
NodeDecommission = "decommission"
)
const (
ActEcOpen = "open-ec-streams"
ActEcClose = "close-ec-streams"
)
// ActMsg is a JSON-formatted control structures used in a majority of API calls
type (
ActMsg struct {
Value any `json:"value"` // action-specific and optional
Action string `json:"action"` // ActShutdown, ActRebalance, and many more (see apc/const.go)
Name string `json:"name"` // action-specific info of any kind (not necessarily "name")
}
ActValRmNode struct {
DaemonID string `json:"sid"`
SkipRebalance bool `json:"skip_rebalance"`
RmUserData bool `json:"rm_user_data"` // decommission-only
KeepInitialConfig bool `json:"keep_initial_config"` // ditto (to be able to restart a node from scratch)
NoShutdown bool `json:"no_shutdown"`
}
)
type (
JoinNodeResult struct {
DaemonID string `json:"daemon_id"`
RebalanceID string `json:"rebalance_id"`
}
)
// MountpathList contains two lists:
// - Available - list of local mountpaths available to the storage target
// - WaitingDD - waiting for resilvering completion to be detached or disabled (moved to `Disabled`)
// - Disabled - list of disabled mountpaths, the mountpaths that generated
// IO errors followed by (FSHC) health check, etc.
type (
MountpathList struct {
Available []string `json:"available"`
WaitingDD []string `json:"waiting_dd"`
Disabled []string `json:"disabled"`
}
)
// sysinfo
type (
CapacityInfo struct {
Used uint64 `json:"fs_used,string"`
Total uint64 `json:"fs_capacity,string"`
PctUsed float64 `json:"pct_fs_used"`
}
TSysInfo struct {
MemCPUInfo
CapacityInfo
}
ClusterSysInfo struct {
Proxy map[string]*MemCPUInfo `json:"proxy"`
Target map[string]*TSysInfo `json:"target"`
}
ClusterSysInfoRaw struct {
Proxy cos.JSONRawMsgs `json:"proxy"`
Target cos.JSONRawMsgs `json:"target"`
}
)
////////////
// ActMsg //
////////////
func (msg *ActMsg) String() string { return msg._string(false) }
func (msg *ActMsg) StringEx() string { return msg._string(true) }
func (msg *ActMsg) _string(wval bool) string {
s := "actm[" + msg.Action
if msg.Name != "" {
s += ", name=" + msg.Name
}
if !wval || msg.Value == nil {
return s + "]"
}
vs, err := jsoniter.Marshal(msg.Value)
if err != nil {
s += "-<json err: " + err.Error() + ">"
return s + "]"
}
s += ", val=" + strings.ReplaceAll(string(vs), ",", ", ") + "]"
return s
}