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https://github.com/etcd-io/etcd.git
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2513e8c9ce
For ppc64. Reference: https://github.com/coreos/bbolt/issues/15#issuecomment-321700834. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
98 lines
2.6 KiB
Go
98 lines
2.6 KiB
Go
// Copyright 2017 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package integration
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import (
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"context"
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"strconv"
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"testing"
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"time"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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"github.com/coreos/etcd/pkg/testutil"
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)
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// TestMetricDbSizeBoot checks that the db size metric is set on boot.
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func TestMetricDbSizeBoot(t *testing.T) {
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defer testutil.AfterTest(t)
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clus := NewClusterV3(t, &ClusterConfig{Size: 1})
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defer clus.Terminate(t)
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v, err := clus.Members[0].Metric("etcd_debugging_mvcc_db_total_size_in_bytes")
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if err != nil {
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t.Fatal(err)
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}
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if v == "0" {
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t.Fatalf("expected non-zero, got %q", v)
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}
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}
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// TestMetricDbSizeDefrag checks that the db size metric is set after defrag.
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func TestMetricDbSizeDefrag(t *testing.T) {
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defer testutil.AfterTest(t)
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clus := NewClusterV3(t, &ClusterConfig{Size: 1})
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defer clus.Terminate(t)
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kvc := toGRPC(clus.Client(0)).KV
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mc := toGRPC(clus.Client(0)).Maintenance
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// expand the db size
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numPuts := 25 // large enough to write more than 1 page
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putreq := &pb.PutRequest{Key: []byte("k"), Value: make([]byte, 4096)}
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for i := 0; i < numPuts; i++ {
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if _, err := kvc.Put(context.TODO(), putreq); err != nil {
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t.Fatal(err)
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}
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}
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// wait for backend txn sync
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time.Sleep(500 * time.Millisecond)
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beforeDefrag, err := clus.Members[0].Metric("etcd_debugging_mvcc_db_total_size_in_bytes")
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if err != nil {
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t.Fatal(err)
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}
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bv, err := strconv.Atoi(beforeDefrag)
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if err != nil {
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t.Fatal(err)
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}
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if expected := numPuts * len(putreq.Value); bv < expected {
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t.Fatalf("expected db size greater than %d, got %d", expected, bv)
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}
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// clear out historical keys
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creq := &pb.CompactionRequest{Revision: int64(numPuts), Physical: true}
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if _, err := kvc.Compact(context.TODO(), creq); err != nil {
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t.Fatal(err)
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}
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// defrag should give freed space back to fs
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mc.Defragment(context.TODO(), &pb.DefragmentRequest{})
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afterDefrag, err := clus.Members[0].Metric("etcd_debugging_mvcc_db_total_size_in_bytes")
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if err != nil {
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t.Fatal(err)
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}
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av, err := strconv.Atoi(afterDefrag)
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if err != nil {
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t.Fatal(err)
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}
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if bv <= av {
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t.Fatalf("expected less than %d, got %d after defrag", bv, av)
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}
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}
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