stats

const (
	KindCounter = "counter"
	KindTotal   = "total"
	KindSize    = "size"

	KindSpecial = "special" // uptime

	KindGauge              = "gauge"     // disk I/O
	KindHistogram          = "histogram" // direct latency metrics (no internal aggregation)
	KindComputedThroughput = "compbw"    // disk read/write throughput

	KindLatency    = "latency" // computed internally over 'periodic.stats_time' (milliseconds)
	KindThroughput = "bw"      // ditto (MB/s)
)

const (
	VlabBucket    = "bucket"
	VlabXkind     = "xkind"
	VlabMountpath = "mountpath"
)

const (
	// NOTE semantics:
	// - counts all warm GETs
	// - counts all cold GETs (when remote GET is followed by storing new object (or, new object version) locally)
	// - does NOT count internal GetObjReader calls (e.g., by copy or transform jobs)
	// - see also:
	//   - ais/backend/common
	//   - rgetstats
	GetCount = "get.n"

	PutCount    = "put.n" // ditto PUT(object) count = (all PUTs including remote)
	HeadCount   = "head.n"
	AppendCount = "append.n"
	DeleteCount = "del.n"
	RenameCount = "ren.n"
	ListCount   = "lst.n" // list-objects

	GetBlobCount = "getblob.n"

	// error counters
	// see also: `Inc`, `regCommon`, `ioErrNames`
	ErrGetCount    = errPrefix + GetCount
	ErrPutCount    = errPrefix + PutCount
	ErrHeadCount   = errPrefix + HeadCount
	ErrAppendCount = errPrefix + AppendCount
	ErrDeleteCount = errPrefix + DeleteCount
	ErrRenameCount = errPrefix + RenameCount
	ErrListCount   = errPrefix + ListCount

	ErrGetBlobCount = errPrefix + GetBlobCount

	ErrKaliveCount    = errPrefix + "kalive.n"
	ErrHTTPWriteCount = errPrefix + "http.write.n"
)

const (
	ListLatency      = "lst.ns"
	KeepAliveLatency = "kalive.ns"
)

const (
	// KindSpecial
	Uptime = "up.ns.time"

	// KindGauge, cos.NodeStateFlags enum
	NodeAlerts = cos.NodeAlerts // "state.flags"
)

const (
	AuthTotalCount        = "auth.total.n"
	AuthSuccessCount      = "auth.success.n"
	AuthFailCount         = "auth.fail.n"
	AuthNoTokenCount      = "auth.notoken.n"
	AuthInvalidTokenCount = "auth.invalidtoken.n"
	AuthInvalidIssCount   = "auth.invalidiss.n"
	AuthInvalidKidCount   = "auth.invalidkid.n"
	AuthExpiredTokenCount = "auth.expiredtoken.n"
	ACLTotalCount         = "acl.total.n"
	ACLDeniedCount        = "acl.denied.n"

	AuthIssHist  = "auth.iss"
	AuthJWKSHist = "auth.jwks"
)

const (
	// KindThroughput
	GetThroughput = "get.bps" // bytes per second
	PutThroughput = "put.bps" // ditto

	// same as above via `.cumulative`
	GetSize = "get.size"
	PutSize = "put.size"

	// common latencies
	AppendLatency    = "append.ns"
	GetRedirLatency  = "get.redir.ns"
	PutRedirLatency  = "put.redir.ns"
	HeadLatencyTotal = "head.ns.total"

	// out-of-band
	VerChangeCount = "ver.change.n"
	VerChangeSize  = "ver.change.size"

	// errors (note common prefix convention)
	ErrPutCksumCount = errPrefix + "put.cksum.n"
	ErrFSHCCount     = errPrefix + "fshc.n"

	// IO errors (must have ioErrPrefix)
	IOErrGetCount    = ioErrPrefix + "get.n"
	IOErrPutCount    = ioErrPrefix + "put.n"
	IOErrDeleteCount = ioErrPrefix + "del.n"

	// KindLatency
	GetLatency      = "get.ns"
	GetLatencyTotal = "get.ns.total"

	PutLatency         = "put.ns"
	PutLatencyTotal    = "put.ns.total"     // "pure" remote PUT latency
	PutE2ELatencyTotal = "e2e.put.ns.total" // end to end (e2e) PUT latency

	// rate limit (409, 503)
	RatelimGetRetryCount        = "ratelim.retry.get.n"
	RatelimGetRetryLatencyTotal = "ratelim.retry.get.ns.total"
	RatelimPutRetryCount        = "ratelim.retry.put.n"
	RatelimPutRetryLatencyTotal = "ratelim.retry.put.ns.total"

	// compare w/ common `DeleteCount`
	RemoteDeletedDelCount = core.RemoteDeletedDelCount
)

const (
	LcacheCollisionCount = core.LcacheCollisionCount
	LcacheEvictedCount   = core.LcacheEvictedCount
	LcacheErrCount       = core.LcacheErrCount
	LcacheFlushColdCount = core.LcacheFlushColdCount
)

const (
	// blob downloader
	GetBlobSize = "getblob.size"

	// LRU eviction
	LruEvictCount = "lru.evict.n"
	LruEvictSize  = "lru.evict.size"

	// space cleanup
	CleanupStoreCount = "cleanup.store.n"
	CleanupStoreSize  = "cleanup.store.size"

	// ETL (ext/etl)
	ETLInlineCount         = "etl.inline.n"
	ETLInlineLatencyTotal  = "etl.inline.ns.total"
	ETLInlineSize          = "etl.inline.size"
	ETLOfflineCount        = "etl.offline.n"
	ETLOfflineLatencyTotal = "etl.offline.ns.total"
	ETLOfflineSize         = "etl.offline.size"

	// downloader (ext/dload)
	// (not to confuse with blob downloader)
	DloadSize         = "dl.size"
	DloadLatencyTotal = "dl.ns.total"
	ErrDloadCount     = errPrefix + "dl.n"

	// get-batch (x-moss)
	GetBatchCount     = "getbatch.n"
	GetBatchObjCount  = "getbatch.obj.n"
	GetBatchFileCount = "getbatch.file.n"
	GetBatchObjSize   = "getbatch.obj.size"
	GetBatchFileSize  = "getbatch.file.size"

	// get-batch GFN (get-from-neighbor) recovery stats
	GetBatchCountGFN = "getbatch.gfn.n" // total GFN requests

	GetBatchRxWaitTotal   = "getbatch.rxwait.ns"
	GetBatchThrottleTotal = "getbatch.throttle.ns"

	ErrGetBatchCount     = errPrefix + "getbatch.n"
	GetBatchSoftErrCount = errPrefix + "soft.getbatch.n"
	GetBatchErrCountGFN  = errPrefix + "gfn.getbatch.n"
)

const (
	ConstlabNode = "node_id"
)

const (
	NgrPrompt = "Number of goroutines"
)