func main() {
flag.Parse()
conf, err := config.LoadFromFile(*configFile)
if err != nil {
log.Fatalf("Error loading configuration from %s: %v", *configFile, err)
}
ts, err := metric.NewTieredStorage(5000, 5000, 100, time.Second*30, time.Second*1, time.Second*20, *metricsStoragePath)
if err != nil {
log.Fatalf("Error opening storage: %s", err)
}
go ts.Serve()
go func() {
notifier := make(chan os.Signal)
signal.Notify(notifier, os.Interrupt)
<-notifier
ts.Close()
os.Exit(0)
}()
// Queue depth will need to be exposed
scrapeResults := make(chan format.Result, *scrapeResultsQueueCapacity)
targetManager := retrieval.NewTargetManager(scrapeResults, *concurrentRetrievalAllowance)
targetManager.AddTargetsFromConfig(conf)
ruleResults := make(chan *rules.Result, *ruleResultsQueueCapacity)
ast.SetStorage(ts)
ruleManager := rules.NewRuleManager(ruleResults, conf.Global.EvaluationInterval)
err = ruleManager.AddRulesFromConfig(conf)
if err != nil {
log.Fatalf("Error loading rule files: %v", err)
}
appState := &appstate.ApplicationState{
Config: conf,
RuleManager: ruleManager,
Storage: ts,
TargetManager: targetManager,
}
web.StartServing(appState)
for {
select {
case scrapeResult := <-scrapeResults:
if scrapeResult.Err == nil {
ts.AppendSample(scrapeResult.Sample)
}
case ruleResult := <-ruleResults:
for _, sample := range ruleResult.Samples {
ts.AppendSample(sample)
}
}
}
}
func TestExpressions(t *testing.T) {
temporaryDirectory := test.NewTemporaryDirectory("rule_expression_tests", t)
defer temporaryDirectory.Close()
tieredStorage, err := metric.NewTieredStorage(5000, 5000, 100, time.Second*30, time.Second*1, time.Second*20, temporaryDirectory.Path())
if err != nil {
t.Fatalf("Error opening storage: %s", err)
}
go tieredStorage.Serve()
ast.SetStorage(tieredStorage)
storeMatrix(tieredStorage, testMatrix)
tieredStorage.Flush()
for i, exprTest := range expressionTests {
expectedLines := annotateWithTime(exprTest.output)
testExpr, err := LoadExprFromString(exprTest.expr)
if err != nil {
if exprTest.shouldFail {
continue
}
t.Errorf("%d Error during parsing: %v", i, err)
t.Errorf("%d Expression: %v", i, exprTest.expr)
} else {
if exprTest.shouldFail {
t.Errorf("%d Test should fail, but didn't", i)
}
failed := false
resultStr := ast.EvalToString(testExpr, testEvalTime, ast.TEXT)
resultLines := strings.Split(resultStr, "\n")
if len(exprTest.output) != len(resultLines) {
t.Errorf("%d Number of samples in expected and actual output don't match", i)
failed = true
}
if exprTest.checkOrder {
for j, expectedSample := range expectedLines {
if resultLines[j] != expectedSample {
t.Errorf("%d.%d Expected sample '%v', got '%v'", i, j, resultLines[j], expectedSample)
failed = true
}
}
} else {
for j, expectedSample := range expectedLines {
found := false
for _, actualSample := range resultLines {
if actualSample == expectedSample {
found = true
}
}
if !found {
t.Errorf("%d.%d Couldn't find expected sample in output: '%v'", i, j, expectedSample)
failed = true
}
}
}
analyzer := ast.NewQueryAnalyzer()
analyzer.AnalyzeQueries(testExpr)
if exprTest.fullRanges != len(analyzer.FullRanges) {
t.Errorf("%d Count of full ranges didn't match: %v vs %v", i, exprTest.fullRanges, len(analyzer.FullRanges))
failed = true
}
if exprTest.intervalRanges != len(analyzer.IntervalRanges) {
t.Errorf("%d Count of interval ranges didn't match: %v vs %v", i, exprTest.intervalRanges, len(analyzer.IntervalRanges))
failed = true
}
if failed {
t.Errorf("%d Expression: %v\n%v", i, exprTest.expr, vectorComparisonString(expectedLines, resultLines))
}
}
}
}