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Introduce copy-on-write for metrics in AST.

Browse source 
This depends on changes in:

https://github.com/prometheus/client_golang/tree/cow-metrics.

Change-Id: I80b94833a60ddf954c7cd92fd2cfbebd8dd46142
This commit is contained in:
Julius Volz 2014-12-08 16:55:49 +01:00
parent f2052c9c0d
commit c9618d11e8
12 changed files with 206 additions and 231 deletions
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130
rules/helpers_test.go
View file

@ -41,10 +41,10 @@ func getTestValueStream(startVal clientmodel.SampleValue, endVal clientmodel.Sam
func getTestVectorFromTestMatrix(matrix ast.Matrix) ast.Vector {
vector := ast.Vector{}
for _, sampleSet := range matrix {
lastSample := sampleSet.Values[len(sampleSet.Values)-1]
vector = append(vector, &clientmodel.Sample{
Metric: sampleSet.Metric,
for _, sampleStream := range matrix {
lastSample := sampleStream.Values[len(sampleStream.Values)-1]
vector = append(vector, &ast.Sample{
Metric: sampleStream.Metric,
Value: lastSample.Value,
Timestamp: lastSample.Timestamp,
})
@ -54,10 +54,10 @@ func getTestVectorFromTestMatrix(matrix ast.Matrix) ast.Vector {
func storeMatrix(storage local.Storage, matrix ast.Matrix) {
pendingSamples := clientmodel.Samples{}
for _, sampleSet := range matrix {
for _, sample := range sampleSet.Values {
for _, sampleStream := range matrix {
for _, sample := range sampleStream.Values {
pendingSamples = append(pendingSamples, &clientmodel.Sample{
Metric: sampleSet.Metric,
Metric: sampleStream.Metric.Metric,
Value: sample.Value,
Timestamp: sample.Timestamp,
})
@ -69,96 +69,118 @@ func storeMatrix(storage local.Storage, matrix ast.Matrix) {
var testMatrix = ast.Matrix{
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "production",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "production",
},
},
Values: getTestValueStream(0, 100, 10, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "production",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "production",
},
},
Values: getTestValueStream(0, 200, 20, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "canary",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "0",
"group": "canary",
},
},
Values: getTestValueStream(0, 300, 30, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "canary",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "api-server",
"instance": "1",
"group": "canary",
},
},
Values: getTestValueStream(0, 400, 40, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "production",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "production",
},
},
Values: getTestValueStream(0, 500, 50, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "production",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "production",
},
},
Values: getTestValueStream(0, 600, 60, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "canary",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "0",
"group": "canary",
},
},
Values: getTestValueStream(0, 700, 70, testStartTime),
},
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "canary",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "http_requests",
clientmodel.JobLabel: "app-server",
"instance": "1",
"group": "canary",
},
},
Values: getTestValueStream(0, 800, 80, testStartTime),
},
// Single-letter metric and label names.
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "x",
"y": "testvalue",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "x",
"y": "testvalue",
},
},
Values: getTestValueStream(0, 100, 10, testStartTime),
},
// Counter reset in the middle of range.
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_middle",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_middle",
},
},
Values: append(getTestValueStream(0, 40, 10, testStartTime), getTestValueStream(0, 50, 10, testStartTime.Add(testSampleInterval*5))...),
},
// Counter reset at the end of range.
{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_end",
Metric: clientmodel.COWMetric{
Metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "testcounter_reset_end",
},
},
Values: append(getTestValueStream(0, 90, 10, testStartTime), getTestValueStream(0, 0, 10, testStartTime.Add(testSampleInterval*10))...),
},