VictoriaMetrics/apptest/tests/multilevel_test.go
Artem Fetishev f79406a051
apptest: typical cluster configuration for business logic tests
Add the ability to create a simple cluster configuration for tests that
do not verify the cluster-specific behavior but instead are focused on
the business logic tests, such as API surface or MetricsQL. For such
tests this cluster configuration will be enough in most cases.

Cluster-specific tests should continue creating custom configurations.

---------

Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
2024-11-20 16:33:19 +01:00

72 lines
2 KiB
Go

package tests
import (
"fmt"
"math/rand/v2"
"testing"
"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
)
func TestClusterMultilevelSelect(t *testing.T) {
tc := apptest.NewTestCase(t)
defer tc.Stop()
// Set up the following multi-level cluster configuration:
//
// vmselect (L2) -> vmselect (L1) -> vmstorage <- vminsert
//
// vmisert writes data into vmstorage.
// vmselect (L2) reads that data via vmselect (L1).
vmstorage := tc.MustStartVmstorage("vmstorage", []string{
"-storageDataPath=" + tc.Dir() + "/vmstorage",
})
vminsert := tc.MustStartVminsert("vminsert", []string{
"-storageNode=" + vmstorage.VminsertAddr(),
})
vmselectL1 := tc.MustStartVmselect("vmselect-level1", []string{
"-storageNode=" + vmstorage.VmselectAddr(),
})
vmselectL2 := tc.MustStartVmselect("vmselect-level2", []string{
"-storageNode=" + vmselectL1.ClusternativeListenAddr(),
})
// Insert 1000 unique time series.
const numMetrics = 1000
records := make([]string, numMetrics)
want := &apptest.PrometheusAPIV1SeriesResponse{
Status: "success",
IsPartial: false,
Data: make([]map[string]string, numMetrics),
}
for i := range numMetrics {
name := fmt.Sprintf("metric_%d", i)
records[i] = fmt.Sprintf("%s %d", name, rand.IntN(1000))
want.Data[i] = map[string]string{"__name__": name}
}
want.Sort()
qopts := apptest.QueryOpts{Tenant: "0"}
vminsert.PrometheusAPIV1ImportPrometheus(t, records, qopts)
vmstorage.ForceFlush(t)
// Retrieve all time series and verify that both vmselect (L1) and
// vmselect (L2) serve the complete set of time series.
got := func(app *apptest.Vmselect) any {
res := app.PrometheusAPIV1Series(t, `{__name__=~".*"}`, qopts)
res.Sort()
return res
}
tc.Assert(&apptest.AssertOptions{
Msg: "unexpected level-1 series count",
Got: func() any { return got(vmselectL1) },
Want: want,
})
tc.Assert(&apptest.AssertOptions{
Msg: "unexpected level-2 series count",
Got: func() any { return got(vmselectL2) },
Want: want,
})
}