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https://github.com/etcd-io/etcd.git
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93225ebafc
Try: ./etcdctl put foo bar ./etcdctl del foo ./etcdctl compact 3 restart etcd ./etcdctl get foo mvcc: required revision has been compacted The error is unexpected when range over the head revision. Internally, we incorrectly set current revision smaller than the compacted revision when we remove all keys around compacted revision. This commit fixes the issue by recovering the current revision at least to compacted revision.
136 lines
3.1 KiB
Go
136 lines
3.1 KiB
Go
// Copyright 2015 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 mvcc
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import (
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"os"
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"reflect"
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"testing"
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"time"
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"github.com/coreos/etcd/lease"
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"github.com/coreos/etcd/mvcc/backend"
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)
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func TestScheduleCompaction(t *testing.T) {
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revs := []revision{{1, 0}, {2, 0}, {3, 0}}
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tests := []struct {
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rev int64
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keep map[revision]struct{}
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wrevs []revision
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}{
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// compact at 1 and discard all history
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{
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1,
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nil,
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revs[1:],
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},
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// compact at 3 and discard all history
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{
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3,
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nil,
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nil,
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},
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// compact at 1 and keeps history one step earlier
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{
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1,
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map[revision]struct{}{
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revision{main: 1}: {},
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},
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revs,
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},
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// compact at 1 and keeps history two steps earlier
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{
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3,
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map[revision]struct{}{
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revision{main: 2}: {},
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revision{main: 3}: {},
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},
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revs[1:],
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},
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}
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for i, tt := range tests {
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b, tmpPath := backend.NewDefaultTmpBackend()
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s := NewStore(b, &lease.FakeLessor{}, nil)
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tx := s.b.BatchTx()
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tx.Lock()
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ibytes := newRevBytes()
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for _, rev := range revs {
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revToBytes(rev, ibytes)
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tx.UnsafePut(keyBucketName, ibytes, []byte("bar"))
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}
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tx.Unlock()
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s.scheduleCompaction(tt.rev, tt.keep)
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tx.Lock()
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for _, rev := range tt.wrevs {
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revToBytes(rev, ibytes)
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keys, _ := tx.UnsafeRange(keyBucketName, ibytes, nil, 0)
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if len(keys) != 1 {
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t.Errorf("#%d: range on %v = %d, want 1", i, rev, len(keys))
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}
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}
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_, vals := tx.UnsafeRange(metaBucketName, finishedCompactKeyName, nil, 0)
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revToBytes(revision{main: tt.rev}, ibytes)
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if w := [][]byte{ibytes}; !reflect.DeepEqual(vals, w) {
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t.Errorf("#%d: vals on %v = %+v, want %+v", i, finishedCompactKeyName, vals, w)
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}
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tx.Unlock()
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cleanup(s, b, tmpPath)
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}
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}
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func TestCompactAllAndRestore(t *testing.T) {
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b, tmpPath := backend.NewDefaultTmpBackend()
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s0 := NewStore(b, &lease.FakeLessor{}, nil)
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defer os.Remove(tmpPath)
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s0.Put([]byte("foo"), []byte("bar"), lease.NoLease)
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s0.Put([]byte("foo"), []byte("bar1"), lease.NoLease)
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s0.Put([]byte("foo"), []byte("bar2"), lease.NoLease)
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s0.DeleteRange([]byte("foo"), nil)
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rev := s0.Rev()
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// compact all keys
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done, err := s0.Compact(rev)
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if err != nil {
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t.Fatal(err)
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}
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select {
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case <-done:
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case <-time.After(10 * time.Second):
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t.Fatal("timeout waiting for compaction to finish")
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}
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err = s0.Close()
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if err != nil {
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t.Fatal(err)
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}
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s1 := NewStore(b, &lease.FakeLessor{}, nil)
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if s1.Rev() != rev {
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t.Errorf("rev = %v, want %v", s1.Rev(), rev)
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}
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_, err = s1.Range([]byte("foo"), nil, RangeOptions{})
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if err != nil {
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t.Errorf("unexpect range error %v", err)
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}
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}
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