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dbconsole: include better names and descriptions for overload page
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This patch improves the metric descriptions for the metrics on the
overload page.

Fixes #120853.

Release note (ui change): The overload page now includes descriptions for all
metrics.
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@aadityasondhi
aadityasondhi committed May 21, 2024
1 parent e785089 commit 01c989a
Showing 1 changed file with 28 additions and 22 deletions.
50 changes: 28 additions & 22 deletions pkg/ui/workspaces/db-console/src/views/cluster/containers/nodeGraphs/dashboards/overload.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,13 @@ export default function (props: GraphDashboardProps) {

return [
<LineGraph
title="CPU Percent"
title="CPU Utilization"
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`CPU utilization of the CockroachDB process as measured by the host, displayed per node.`}
>
<Axis units={AxisUnits.Percentage} label="CPU">
<Axis units={AxisUnits.Percentage} label="CPU Utilization">
{nodeIDs.map(nid => (
<Metric
name="cr.node.sys.cpu.combined.percent-normalized"
Expand All @@ -49,12 +50,13 @@ export default function (props: GraphDashboardProps) {
</LineGraph>,

<LineGraph
title="KV Admission Slots Exhausted"
title="KV Admission CPU Slots Exhausted Duration Per Second"
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`Relative time the node had exhausted slots for foreground (regular) CPU work per second of wall time, measured in microseconds/second. Increased slot exhausted duration indicates CPU resource exhaustion.`}
>
<Axis label="duration (micros/sec)">
<Axis label="Duration (micros/sec)">
{nodeIDs.map(nid => (
<Metric
key={nid}
Expand All @@ -75,8 +77,9 @@ export default function (props: GraphDashboardProps) {
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`Relative time the node had exhausted IO tokens for all IO-bound work per second of wall time, measured in microseconds/second. Increased IO token exhausted duration indicates IO resource exhaustion.`}
>
<Axis label="duration (micros/sec)">
<Axis label="Duration (micros/sec)">
{nodeIDs.map(nid => (
<Metric
key={nid}
Expand All @@ -93,10 +96,10 @@ export default function (props: GraphDashboardProps) {
title="IO Overload"
sources={storeSources}
tenantSource={tenantSource}
tooltip={`The number of sublevels/files in L0 normalized by admission thresholds.`}
tooltip={`A derived score based on Admission Control's view of the store. Admission Control attempts to maintain a score of 0.5.`}
showMetricsInTooltip={true}
>
<Axis label="IO Overload">
<Axis label="Score">
{nodeIDs.map(nid => (
<>
<Metric
Expand All @@ -111,13 +114,13 @@ export default function (props: GraphDashboardProps) {
</LineGraph>,

<LineGraph
title="Elastic CPU Exhausted Duration Per Second"
title="Elastic CPU Tokens Exhausted Duration Per Second"
sources={nodeSources}
tenantSource={tenantSource}
tooltip={`Duration of CPU exhaustion by elastic work, in microseconds.`}
tooltip={`Relative time the node had exhausted tokens for background (elastic) CPU work per second of wall time, measured in microseconds/second. Increased token exhausted duration indicates CPU resource exhaustion, specifically for background (elastic) work.`}
showMetricsInTooltip={true}
>
<Axis label="duration (micros/sec)">
<Axis label="Duration (micros/sec)">
{nodeIDs.map(nid => (
<Metric
key={nid}
Expand All @@ -134,17 +137,18 @@ export default function (props: GraphDashboardProps) {
</LineGraph>,

<LineGraph
title="Flow Tokens Wait Time: 75th percentile"
title="Flow Tokens Queueing Delay: 99th percentile"
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`The 99th percentile latency of requests waiting in the Replication Admission Control queue. This metric is indicative of store overload on replicas.`}
>
<Axis units={AxisUnits.Duration} label="p75 flow token wait duration">
<Axis units={AxisUnits.Duration} label="Wait Duration">
{nodeIDs.map(nid => (
<>
<Metric
key={nid}
name="cr.node.kvadmission.flow_controller.regular_wait_duration-p75"
name="cr.node.kvadmission.flow_controller.regular_wait_duration-p99"
title={
"Regular flow token wait time " +
nodeDisplayName(nodeDisplayNameByID, nid)
Expand All @@ -154,7 +158,7 @@ export default function (props: GraphDashboardProps) {
/>
<Metric
key={nid}
name="cr.node.kvadmission.flow_controller.elastic_wait_duration-p75"
name="cr.node.kvadmission.flow_controller.elastic_wait_duration-p99"
title={
"Elastic flow token wait time " +
nodeDisplayName(nodeDisplayNameByID, nid)
Expand All @@ -168,31 +172,32 @@ export default function (props: GraphDashboardProps) {
</LineGraph>,

<LineGraph
title="Admission Delay: 75th percentile"
title="Admission Queueing Delay: 99th percentile"
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`The 99th percentile latency of requests waiting in the various Admission Control queues.`}
>
<Axis units={AxisUnits.Duration} label="delay for requests that waited">
<Axis units={AxisUnits.Duration} label="Delay Duration">
{nodeIDs.map(nid => (
<>
<Metric
key={nid}
name="cr.node.admission.wait_durations.kv-p75"
name="cr.node.admission.wait_durations.kv-p99"
title={"KV " + nodeDisplayName(nodeDisplayNameByID, nid)}
sources={[nid]}
downsampleMax
/>
<Metric
key={nid}
name="cr.node.admission.wait_durations.kv-stores-p75"
name="cr.node.admission.wait_durations.kv-stores-p99"
title={"KV write " + nodeDisplayName(nodeDisplayNameByID, nid)}
sources={[nid]}
downsampleMax
/>
<Metric
key={nid}
name="cr.node.admission.wait_durations.sql-kv-response-p75"
name="cr.node.admission.wait_durations.sql-kv-response-p99"
title={
"SQL-KV response " + nodeDisplayName(nodeDisplayNameByID, nid)
}
Expand All @@ -201,7 +206,7 @@ export default function (props: GraphDashboardProps) {
/>
<Metric
key={nid}
name="cr.node.admission.wait_durations.sql-sql-response-p75"
name="cr.node.admission.wait_durations.sql-sql-response-p99"
title={
"SQL-SQL response " + nodeDisplayName(nodeDisplayNameByID, nid)
}
Expand All @@ -218,6 +223,7 @@ export default function (props: GraphDashboardProps) {
sources={nodeSources}
tenantSource={tenantSource}
showMetricsInTooltip={true}
tooltip={`Blocked replication streams per node in Replication Admission Control, separated by admission priority {regular, elastic}.`}
>
<Axis label="Count">
{nodeIDs.map(nid => (
Expand Down Expand Up @@ -280,7 +286,7 @@ export default function (props: GraphDashboardProps) {
title="Goroutine Scheduling Latency: 99th percentile"
sources={nodeSources}
tenantSource={tenantSource}
tooltip={`P99 scheduling latency for goroutines`}
tooltip={`P99 scheduling latency for goroutines. A value above 1ms here indicates high load that causes background (elastic) CPU work to be throttled.`}
showMetricsInTooltip={true}
>
<Axis units={AxisUnits.Duration} label="latency">
Expand All @@ -302,7 +308,7 @@ export default function (props: GraphDashboardProps) {
title="Runnable Goroutines per CPU"
sources={nodeSources}
tenantSource={tenantSource}
tooltip={`The number of Goroutines waiting per CPU.`}
tooltip={`The number of Goroutines waiting per CPU. A value above the value set in admission.kv_slot_adjuster.overload_threshold (sampled at 1ms) is used by admission control to throttle regular CPU work.`}
showMetricsInTooltip={true}
>
<Axis label="goroutines">
Expand Down

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