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https://github.com/matrix-org/dendrite.git
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Move prometheus stuff into separate file
This commit is contained in:
Neil Alexander
parent
9be7134727
commit
78ef720a03
103
roomserver/state/v1/prometheus.go
Normal file
103
roomserver/state/v1/prometheus.go
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@ -0,0 +1,103 @@
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package v1
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import (
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"time"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/prometheus/client_golang/prometheus"
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)
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var calculateStateDurations = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_duration_microseconds",
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Help: "How long it takes to calculate the state after a list of events",
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},
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// Takes two labels:
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// algorithm:
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// The algorithm used to calculate the state or the step it failed on if it failed.
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// Labels starting with "_" are used to indicate when the algorithm fails halfway.
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// outcome:
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// Whether the state was successfully calculated.
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//
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// The possible values for algorithm are:
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// empty_state -> The list of events was empty so the state is empty.
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// no_change -> The state hasn't changed.
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// single_delta -> There was a single event added to the state in a way that can be encoded as a single delta
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// full_state_no_conflicts -> We created a new copy of the full room state, but didn't enounter any conflicts
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// while doing so.
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// full_state_with_conflicts -> We created a new copy of the full room state and had to resolve conflicts to do so.
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// _load_state_block_nids -> Failed loading the state block nids for a single previous state.
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// _load_combined_state -> Failed to load the combined state.
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// _resolve_conflicts -> Failed to resolve conflicts.
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[]string{"algorithm", "outcome"},
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)
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var calculateStatePrevEventLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_prev_event_length",
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Help: "The length of the list of events to calculate the state after",
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},
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[]string{"algorithm", "outcome"},
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)
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var calculateStateFullStateLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_full_state_length",
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Help: "The length of the full room state.",
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},
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[]string{"algorithm", "outcome"},
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)
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var calculateStateConflictLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_conflict_state_length",
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Help: "The length of the conflicted room state.",
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},
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[]string{"algorithm", "outcome"},
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)
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type calculateStateMetrics struct {
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algorithm string
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startTime time.Time
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prevEventLength int
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fullStateLength int
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conflictLength int
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}
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func (c *calculateStateMetrics) stop(stateNID types.StateSnapshotNID, err error) (types.StateSnapshotNID, error) {
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var outcome string
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if err == nil {
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outcome = "success"
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} else {
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outcome = "failure"
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}
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endTime := time.Now()
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calculateStateDurations.WithLabelValues(c.algorithm, outcome).Observe(
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float64(endTime.Sub(c.startTime).Nanoseconds()) / 1000.,
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)
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calculateStatePrevEventLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.prevEventLength),
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)
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calculateStateFullStateLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.fullStateLength),
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)
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calculateStateConflictLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.conflictLength),
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)
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return stateNID, err
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}
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func init() {
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prometheus.MustRegister(
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calculateStateDurations, calculateStatePrevEventLength,
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calculateStateFullStateLength, calculateStateConflictLength,
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)
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}
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@ -27,7 +27,6 @@ import (
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/prometheus/client_golang/prometheus"
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)
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type StateResolutionV1 struct {
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@ -411,101 +410,6 @@ func (v StateResolutionV1) loadStateAfterEventsForNumericTuples(
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return result, nil
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}
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var calculateStateDurations = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_duration_microseconds",
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Help: "How long it takes to calculate the state after a list of events",
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},
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// Takes two labels:
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// algorithm:
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// The algorithm used to calculate the state or the step it failed on if it failed.
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// Labels starting with "_" are used to indicate when the algorithm fails halfway.
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// outcome:
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// Whether the state was successfully calculated.
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//
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// The possible values for algorithm are:
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// empty_state -> The list of events was empty so the state is empty.
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// no_change -> The state hasn't changed.
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// single_delta -> There was a single event added to the state in a way that can be encoded as a single delta
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// full_state_no_conflicts -> We created a new copy of the full room state, but didn't enounter any conflicts
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// while doing so.
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// full_state_with_conflicts -> We created a new copy of the full room state and had to resolve conflicts to do so.
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// _load_state_block_nids -> Failed loading the state block nids for a single previous state.
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// _load_combined_state -> Failed to load the combined state.
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// _resolve_conflicts -> Failed to resolve conflicts.
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[]string{"algorithm", "outcome"},
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)
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var calculateStatePrevEventLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_prev_event_length",
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Help: "The length of the list of events to calculate the state after",
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},
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[]string{"algorithm", "outcome"},
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)
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var calculateStateFullStateLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_full_state_length",
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Help: "The length of the full room state.",
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},
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[]string{"algorithm", "outcome"},
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)
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var calculateStateConflictLength = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: "dendrite",
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Subsystem: "roomserver",
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Name: "calculate_state_conflict_state_length",
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Help: "The length of the conflicted room state.",
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},
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[]string{"algorithm", "outcome"},
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)
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type calculateStateMetrics struct {
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algorithm string
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startTime time.Time
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prevEventLength int
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fullStateLength int
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conflictLength int
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}
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func (c *calculateStateMetrics) stop(stateNID types.StateSnapshotNID, err error) (types.StateSnapshotNID, error) {
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var outcome string
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if err == nil {
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outcome = "success"
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} else {
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outcome = "failure"
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}
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endTime := time.Now()
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calculateStateDurations.WithLabelValues(c.algorithm, outcome).Observe(
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float64(endTime.Sub(c.startTime).Nanoseconds()) / 1000.,
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)
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calculateStatePrevEventLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.prevEventLength),
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)
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calculateStateFullStateLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.fullStateLength),
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)
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calculateStateConflictLength.WithLabelValues(c.algorithm, outcome).Observe(
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float64(c.conflictLength),
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)
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return stateNID, err
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}
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func init() {
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prometheus.MustRegister(
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calculateStateDurations, calculateStatePrevEventLength,
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calculateStateFullStateLength, calculateStateConflictLength,
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)
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}
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// CalculateAndStoreStateBeforeEvent calculates a snapshot of the state of a room before an event.
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// Stores the snapshot of the state in the database.
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// Returns a numeric ID for the snapshot of the state before the event.
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