PMM-13477 fix tests.

exporter/diagnostic_data_collector.go

@@ -112,13 +112,25 @@ func (d *diagnosticDataCollector) collect(ch chan<- prometheus.Metric) {
 			err = errors.Wrapf(errUnexpectedDataType, "%T for data field", m["data"])
 			logger.Errorf("cannot decode getDiagnosticData: %s", err)
 		}
-		if c, ok := m["common"].(bson.M); ok {
-			m = c
-		}
 
 		logger.Debug("getDiagnosticData result")
 		debugResult(logger, m)
 
+		// MongoDB 8.0 splits the diagnostic data into multiple blocks, so we need to merge them
+		if d.buildInfo.VersionArray[0] >= 8 {
+			b := bson.M{}
+			for _, mv := range m {
+				block, ok := mv.(bson.M)
+				if !ok {
+					continue
+				}
+				for k, v := range block {
+					b[k] = v
+				}
+			}
+			m = b
+		}
+
 		metrics = makeMetrics("", m, d.topologyInfo.baseLabels(), d.compatibleMode)
 		metrics = append(metrics, locksMetrics(logger, m)...)
 

exporter/exporter.go

@@ -239,7 +239,7 @@ func (e *Exporter) makeRegistry(ctx context.Context, client *mongo.Client, topol
 	// replSetGetStatus is not supported through mongos.
 	if e.opts.EnableReplicasetStatus && nodeType != typeMongos && requestOpts.EnableReplicasetStatus {
 		rsgsc := newReplicationSetStatusCollector(ctx, client, e.opts.Logger,
-			e.opts.CompatibleMode, topologyInfo, dbBuildInfo)
+			e.opts.CompatibleMode, topologyInfo)
 		registry.MustRegister(rsgsc)
 	}
 

exporter/exporter_test.go

@@ -27,12 +27,10 @@ import (
 	"sync"
 	"testing"
 
+	"github.com/percona/mongodb_exporter/internal/tu"
 	"github.com/prometheus/client_golang/prometheus/testutil"
 	"github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/percona/mongodb_exporter/internal/tu"
 )
 
 // Use this for testing because labels like cluster ID are not constant in docker containers
@@ -187,10 +185,7 @@ func TestMongoS(t *testing.T) {
 		assert.NoError(t, err)
 
 		e := New(exporterOpts)
-
-		version, err := retrieveMongoDBBuildInfo(ctx, client, exporterOpts.Logger.WithField("component", "test"))
-		require.NoError(t, err)
-		rsgsc := newReplicationSetStatusCollector(ctx, client, e.opts.Logger, e.opts.CompatibleMode, new(labelsGetterMock), version)
+		rsgsc := newReplicationSetStatusCollector(ctx, client, e.opts.Logger, e.opts.CompatibleMode, new(labelsGetterMock))
 
 		r := e.makeRegistry(ctx, client, new(labelsGetterMock), *e.opts)
 

exporter/replset_status_collector.go

@@ -17,8 +17,6 @@ package exporter
 
 import (
 	"context"
-	"strings"
-
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
 	"go.mongodb.org/mongo-driver/bson"
@@ -36,19 +34,16 @@ type replSetGetStatusCollector struct {
 
 	compatibleMode bool
 	topologyInfo   labelsGetter
-
-	version buildInfo
 }
 
 // newReplicationSetStatusCollector creates a collector for statistics on replication set.
-func newReplicationSetStatusCollector(ctx context.Context, client *mongo.Client, logger *logrus.Logger, compatible bool, topology labelsGetter, version buildInfo) *replSetGetStatusCollector {
+func newReplicationSetStatusCollector(ctx context.Context, client *mongo.Client, logger *logrus.Logger, compatible bool, topology labelsGetter) *replSetGetStatusCollector {
 	return &replSetGetStatusCollector{
 		ctx:  ctx,
 		base: newBaseCollector(client, logger.WithFields(logrus.Fields{"collector": "replset_status"})),
 
 		compatibleMode: compatible,
 		topologyInfo:   topology,
-		version:        version,
 	}
 }
 
@@ -88,19 +83,6 @@ func (d *replSetGetStatusCollector) collect(ch chan<- prometheus.Metric) {
 	for _, metric := range makeMetrics("", m, d.topologyInfo.baseLabels(), d.compatibleMode) {
 		ch <- metric
 	}
-
-	if strings.HasPrefix(d.version.Version, "8.") {
-		for _, metric := range makeMetrics("rs", m, d.topologyInfo.baseLabels(), d.compatibleMode) {
-			ch <- metric
-		}
-		if d.compatibleMode {
-			logger.Infof("collecting compatibility metrics for version %s", d.version.Version)
-			metrics := replSetMetrics(m, logger)
-			for _, metric := range metrics {
-				ch <- metric
-			}
-		}
-	}
 }
 
 var _ prometheus.Collector = (*replSetGetStatusCollector)(nil)

exporter/replset_status_collector_test.go

@@ -21,12 +21,10 @@ import (
 	"testing"
 	"time"
 
+	"github.com/percona/mongodb_exporter/internal/tu"
 	"github.com/prometheus/client_golang/prometheus/testutil"
 	"github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/percona/mongodb_exporter/internal/tu"
 )
 
 func TestReplsetStatusCollector(t *testing.T) {
@@ -37,9 +35,7 @@ func TestReplsetStatusCollector(t *testing.T) {
 
 	ti := labelsGetterMock{}
 
-	version, err := retrieveMongoDBBuildInfo(ctx, client, logrus.New().WithField("component", "test"))
-	require.NoError(t, err)
-	c := newReplicationSetStatusCollector(ctx, client, logrus.New(), false, ti, version)
+	c := newReplicationSetStatusCollector(ctx, client, logrus.New(), false, ti)
 
 	// The last \n at the end of this string is important
 	expected := strings.NewReader(`
@@ -57,7 +53,7 @@ func TestReplsetStatusCollector(t *testing.T) {
 		"mongodb_myState",
 		"mongodb_ok",
 	}
-	err = testutil.CollectAndCompare(c, expected, filter...)
+	err := testutil.CollectAndCompare(c, expected, filter...)
 	assert.NoError(t, err)
 }
 
@@ -69,10 +65,7 @@ func TestReplsetStatusCollectorNoSharding(t *testing.T) {
 
 	ti := labelsGetterMock{}
 
-	version, err := retrieveMongoDBBuildInfo(ctx, client, logrus.New().WithField("component", "test"))
-	require.NoError(t, err)
-
-	c := newReplicationSetStatusCollector(ctx, client, logrus.New(), false, ti, version)
+	c := newReplicationSetStatusCollector(ctx, client, logrus.New(), false, ti)
 
 	// Replication set metrics should not be generated for unsharded server
 	count := testutil.CollectAndCount(c)