958 lines
21 KiB
Go
958 lines
21 KiB
Go
package raft
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import (
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"bytes"
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"context"
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"fmt"
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"hash/crc64"
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"io"
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"io/ioutil"
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"net/http/httptest"
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"os"
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"path/filepath"
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"reflect"
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"runtime"
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"testing"
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"time"
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hclog "github.com/hashicorp/go-hclog"
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"github.com/hashicorp/raft"
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"github.com/hashicorp/vault/sdk/logical"
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"github.com/hashicorp/vault/sdk/physical"
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"github.com/hashicorp/vault/sdk/plugin/pb"
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)
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type idAddr struct {
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id string
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}
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func (a *idAddr) Network() string { return "inmem" }
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func (a *idAddr) String() string { return a.id }
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func addPeer(t *testing.T, leader, follower *RaftBackend) {
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t.Helper()
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if err := leader.AddPeer(context.Background(), follower.NodeID(), follower.NodeID()); err != nil {
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t.Fatal(err)
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}
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peers, err := leader.Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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err = follower.Bootstrap(peers)
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if err != nil {
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t.Fatal(err)
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}
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err = follower.SetupCluster(context.Background(), SetupOpts{})
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if err != nil {
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t.Fatal(err)
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}
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leader.raftTransport.(*raft.InmemTransport).Connect(raft.ServerAddress(follower.NodeID()), follower.raftTransport)
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follower.raftTransport.(*raft.InmemTransport).Connect(raft.ServerAddress(leader.NodeID()), leader.raftTransport)
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}
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func TestRaft_Snapshot_Loading(t *testing.T) {
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raft, dir := getRaft(t, true, false)
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defer os.RemoveAll(dir)
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// Write some data
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for i := 0; i < 1000; i++ {
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err := raft.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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readCloser, writeCloser := io.Pipe()
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metaReadCloser, metaWriteCloser := io.Pipe()
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go func() {
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raft.fsm.writeTo(context.Background(), metaWriteCloser, writeCloser)
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}()
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// Create a CRC64 hash
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stateHash := crc64.New(crc64.MakeTable(crc64.ECMA))
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// Compute the hash
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size1, err := io.Copy(stateHash, metaReadCloser)
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if err != nil {
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t.Fatal(err)
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}
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computed1 := stateHash.Sum(nil)
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// Create a CRC64 hash
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stateHash = crc64.New(crc64.MakeTable(crc64.ECMA))
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// Compute the hash
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size2, err := io.Copy(stateHash, readCloser)
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if err != nil {
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t.Fatal(err)
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}
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computed2 := stateHash.Sum(nil)
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if size1 != size2 {
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t.Fatal("sizes did not match")
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}
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if !bytes.Equal(computed1, computed2) {
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t.Fatal("hashes did not match")
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}
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snapFuture := raft.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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meta, reader, err := snapFuture.Open()
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if err != nil {
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t.Fatal(err)
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}
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if meta.Size != size1 {
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t.Fatal("meta size did not match expected")
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}
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// Create a CRC64 hash
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stateHash = crc64.New(crc64.MakeTable(crc64.ECMA))
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// Compute the hash
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size3, err := io.Copy(stateHash, reader)
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if err != nil {
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t.Fatal(err)
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}
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computed3 := stateHash.Sum(nil)
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if size1 != size3 {
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t.Fatal("sizes did not match")
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}
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if !bytes.Equal(computed1, computed3) {
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t.Fatal("hashes did not match")
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}
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}
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func TestRaft_Snapshot_Index(t *testing.T) {
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raft, dir := getRaft(t, true, false)
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defer os.RemoveAll(dir)
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err := raft.Put(context.Background(), &physical.Entry{
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Key: "key",
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Value: []byte("value"),
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})
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if err != nil {
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t.Fatal(err)
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}
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// Get index
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index, _ := raft.fsm.LatestState()
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if index.Term != 2 {
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t.Fatalf("unexpected term, got %d expected 2", index.Term)
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}
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if index.Index != 3 {
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t.Fatalf("unexpected index, got %d expected 3", index.Term)
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}
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// Write some data
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for i := 0; i < 100; i++ {
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err := raft.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// Get index
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index, _ = raft.fsm.LatestState()
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if index.Term != 2 {
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t.Fatalf("unexpected term, got %d expected 2", index.Term)
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}
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if index.Index != 103 {
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t.Fatalf("unexpected index, got %d expected 103", index.Term)
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}
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// Take a snapshot
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snapFuture := raft.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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meta, reader, err := snapFuture.Open()
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if err != nil {
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t.Fatal(err)
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}
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io.Copy(ioutil.Discard, reader)
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if meta.Index != index.Index {
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t.Fatalf("indexes did not match, got %d expected %d", meta.Index, index.Index)
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}
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if meta.Term != index.Term {
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t.Fatalf("term did not match, got %d expected %d", meta.Term, index.Term)
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}
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// Write some more data
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for i := 0; i < 100; i++ {
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err := raft.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// Open the same snapshot again
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meta, reader, err = raft.snapStore.Open(meta.ID)
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if err != nil {
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t.Fatal(err)
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}
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io.Copy(ioutil.Discard, reader)
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// Make sure the meta data has updated to the new values
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if meta.Index != 203 {
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t.Fatalf("unexpected snapshot index %d", meta.Index)
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}
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if meta.Term != 2 {
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t.Fatalf("unexpected snapshot term %d", meta.Term)
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}
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}
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func TestRaft_Snapshot_Peers(t *testing.T) {
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raft1, dir := getRaft(t, true, false)
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raft2, dir2 := getRaft(t, false, false)
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raft3, dir3 := getRaft(t, false, false)
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defer os.RemoveAll(dir)
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defer os.RemoveAll(dir2)
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defer os.RemoveAll(dir3)
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// Write some data
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for i := 0; i < 1000; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// Force a snapshot
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snapFuture := raft1.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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commitIdx := raft1.CommittedIndex()
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// Add raft2 to the cluster
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addPeer(t, raft1, raft2)
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ensureCommitApplied(t, commitIdx, raft2)
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// Make sure the snapshot was applied correctly on the follower
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if err := compareDBs(t, raft1.fsm.getDB(), raft2.fsm.getDB(), false); err != nil {
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t.Fatal(err)
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}
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// Write some more data
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for i := 1000; i < 2000; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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snapFuture = raft1.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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commitIdx = raft1.CommittedIndex()
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// Add raft3 to the cluster
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addPeer(t, raft1, raft3)
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ensureCommitApplied(t, commitIdx, raft2)
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ensureCommitApplied(t, commitIdx, raft3)
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// Make sure all stores are the same
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compareFSMs(t, raft1.fsm, raft2.fsm)
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compareFSMs(t, raft1.fsm, raft3.fsm)
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}
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func ensureCommitApplied(t *testing.T, leaderCommitIdx uint64, backend *RaftBackend) {
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t.Helper()
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timeout := time.Now().Add(10 * time.Second)
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for {
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if time.Now().After(timeout) {
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t.Fatal("timeout reached while verifying applied index on raft backend")
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}
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if backend.AppliedIndex() >= leaderCommitIdx {
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break
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}
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time.Sleep(1 * time.Second)
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}
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}
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func TestRaft_Snapshot_Restart(t *testing.T) {
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raft1, dir := getRaft(t, true, false)
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defer os.RemoveAll(dir)
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raft2, dir2 := getRaft(t, false, false)
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defer os.RemoveAll(dir2)
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// Write some data
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for i := 0; i < 100; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// Take a snapshot
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snapFuture := raft1.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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// Advance FSM's index past configuration change
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raft1.Put(context.Background(), &physical.Entry{
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Key: "key",
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Value: []byte("value"),
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})
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// Add raft2 to the cluster
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addPeer(t, raft1, raft2)
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time.Sleep(2 * time.Second)
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peers, err := raft2.Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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if len(peers) != 2 {
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t.Fatal(peers)
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}
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// Finalize raft1
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if err := raft1.TeardownCluster(nil); err != nil {
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t.Fatal(err)
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}
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// Start Raft
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err = raft1.SetupCluster(context.Background(), SetupOpts{})
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if err != nil {
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t.Fatal(err)
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}
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peers, err = raft1.Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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if len(peers) != 2 {
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t.Fatal(peers)
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}
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compareFSMs(t, raft1.fsm, raft2.fsm)
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}
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/*
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func TestRaft_Snapshot_ErrorRecovery(t *testing.T) {
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raft1, dir := getRaft(t, true, false)
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raft2, dir2 := getRaft(t, false, false)
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raft3, dir3 := getRaft(t, false, false)
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defer os.RemoveAll(dir)
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defer os.RemoveAll(dir2)
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defer os.RemoveAll(dir3)
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// Add raft2 to the cluster
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addPeer(t, raft1, raft2)
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// Write some data
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for i := 0; i < 100; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// Take a snapshot on each node to ensure we no longer have older logs
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snapFuture := raft1.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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stepDownLeader(t, raft1)
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leader := waitForLeader(t, raft1, raft2)
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snapFuture = leader.raft.Snapshot()
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if err := snapFuture.Error(); err != nil {
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t.Fatal(err)
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}
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// Advance FSM's index past snapshot index
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leader.Put(context.Background(), &physical.Entry{
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Key: "key",
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Value: []byte("value"),
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})
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// Error on snapshot restore
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raft3.fsm.testSnapshotRestoreError = true
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// Add raft3 to the cluster
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addPeer(t, leader, raft3)
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time.Sleep(2 * time.Second)
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// Restart the failing node to make sure fresh state does not have invalid
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// values.
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if err := raft3.TeardownCluster(nil); err != nil {
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t.Fatal(err)
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}
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// Ensure the databases are not equal
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if err := compareFSMsWithErr(t, leader.fsm, raft3.fsm); err == nil {
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t.Fatal("nil error")
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}
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// Remove error and make sure we can reconcile state
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raft3.fsm.testSnapshotRestoreError = false
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// Step down leader node
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stepDownLeader(t, leader)
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leader = waitForLeader(t, raft1, raft2)
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// Start Raft3
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if err := raft3.SetupCluster(context.Background(), SetupOpts{}); err != nil {
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t.Fatal(err)
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}
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connectPeers(raft1, raft2, raft3)
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waitForLeader(t, raft1, raft2)
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time.Sleep(5 * time.Second)
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// Make sure state gets re-replicated.
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compareFSMs(t, raft1.fsm, raft3.fsm)
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}*/
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func TestRaft_Snapshot_Take_Restore(t *testing.T) {
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raft1, dir := getRaft(t, true, false)
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defer os.RemoveAll(dir)
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raft2, dir2 := getRaft(t, false, false)
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defer os.RemoveAll(dir2)
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addPeer(t, raft1, raft2)
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// Write some data
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for i := 0; i < 100; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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recorder := httptest.NewRecorder()
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snap := logical.NewHTTPResponseWriter(recorder)
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err := raft1.Snapshot(snap, nil)
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if err != nil {
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t.Fatal(err)
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}
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// Write some more data
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for i := 100; i < 200; i++ {
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err := raft1.Put(context.Background(), &physical.Entry{
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Key: fmt.Sprintf("key-%d", i),
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Value: []byte(fmt.Sprintf("value-%d", i)),
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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snapFile, cleanup, metadata, err := raft1.WriteSnapshotToTemp(ioutil.NopCloser(recorder.Body), nil)
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if err != nil {
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t.Fatal(err)
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}
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defer cleanup()
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err = raft1.RestoreSnapshot(context.Background(), metadata, snapFile)
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if err != nil {
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t.Fatal(err)
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}
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// make sure we don't have the second batch of writes
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for i := 100; i < 200; i++ {
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{
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value, err := raft1.Get(context.Background(), fmt.Sprintf("key-%d", i))
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if err != nil {
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t.Fatal(err)
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}
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if value != nil {
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t.Fatal("didn't remove data")
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}
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}
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{
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value, err := raft2.Get(context.Background(), fmt.Sprintf("key-%d", i))
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if err != nil {
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t.Fatal(err)
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}
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if value != nil {
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t.Fatal("didn't remove data")
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}
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}
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}
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time.Sleep(10 * time.Second)
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compareFSMs(t, raft1.fsm, raft2.fsm)
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}
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func TestBoltSnapshotStore_CreateSnapshotMissingParentDir(t *testing.T) {
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parent, err := ioutil.TempDir("", "raft")
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if err != nil {
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t.Fatalf("err: %v ", err)
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}
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defer os.RemoveAll(parent)
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dir, err := ioutil.TempDir(parent, "raft")
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if err != nil {
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t.Fatalf("err: %v ", err)
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}
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logger := hclog.New(&hclog.LoggerOptions{
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Name: "raft",
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Level: hclog.Trace,
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})
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snap, err := NewBoltSnapshotStore(dir, logger, nil)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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os.RemoveAll(parent)
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_, trans := raft.NewInmemTransport(raft.NewInmemAddr())
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sink, err := snap.Create(raft.SnapshotVersionMax, 10, 3, raft.Configuration{}, 0, trans)
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if err != nil {
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t.Fatal(err)
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}
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defer sink.Cancel()
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_, err = sink.Write([]byte("test"))
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|
if err != nil {
|
|
t.Fatalf("should not fail when using non existing parent: %s", err)
|
|
}
|
|
|
|
// Ensure the snapshot file exists
|
|
_, err = os.Stat(filepath.Join(snap.path, sink.ID()+tmpSuffix, databaseFilename))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func TestBoltSnapshotStore_Listing(t *testing.T) {
|
|
// Create a test dir
|
|
parent, err := ioutil.TempDir("", "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
defer os.RemoveAll(parent)
|
|
|
|
dir, err := ioutil.TempDir(parent, "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
|
|
logger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "raft",
|
|
Level: hclog.Trace,
|
|
})
|
|
|
|
fsm, err := NewFSM(parent, "", logger)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
snap, err := NewBoltSnapshotStore(dir, logger, fsm)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// FSM has no data, should have empty snapshot list
|
|
snaps, err := snap.List()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if len(snaps) != 0 {
|
|
t.Fatalf("expect 0 snapshots: %v", snaps)
|
|
}
|
|
|
|
// Move the fsm forward
|
|
err = fsm.witnessSnapshot(&raft.SnapshotMeta{
|
|
Index: 100,
|
|
Term: 20,
|
|
Configuration: raft.Configuration{},
|
|
ConfigurationIndex: 0,
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
snaps, err = snap.List()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(snaps) != 1 {
|
|
t.Fatalf("expect 1 snapshots: %v", snaps)
|
|
}
|
|
|
|
if snaps[0].Index != 100 || snaps[0].Term != 20 {
|
|
t.Fatalf("bad snapshot: %+v", snaps[0])
|
|
}
|
|
|
|
if snaps[0].ID != boltSnapshotID {
|
|
t.Fatalf("bad snapshot: %+v", snaps[0])
|
|
}
|
|
}
|
|
|
|
func TestBoltSnapshotStore_CreateInstallSnapshot(t *testing.T) {
|
|
// Create a test dir
|
|
parent, err := ioutil.TempDir("", "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
defer os.RemoveAll(parent)
|
|
|
|
dir, err := ioutil.TempDir(parent, "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
|
|
logger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "raft",
|
|
Level: hclog.Trace,
|
|
})
|
|
|
|
fsm, err := NewFSM(parent, "", logger)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer fsm.Close()
|
|
|
|
snap, err := NewBoltSnapshotStore(dir, logger, fsm)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Check no snapshots
|
|
snaps, err := snap.List()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if len(snaps) != 0 {
|
|
t.Fatalf("did not expect any snapshots: %v", snaps)
|
|
}
|
|
|
|
// Create a new sink
|
|
var configuration raft.Configuration
|
|
configuration.Servers = append(configuration.Servers, raft.Server{
|
|
Suffrage: raft.Voter,
|
|
ID: raft.ServerID("my id"),
|
|
Address: raft.ServerAddress("over here"),
|
|
})
|
|
_, trans := raft.NewInmemTransport(raft.NewInmemAddr())
|
|
sink, err := snap.Create(raft.SnapshotVersionMax, 10, 3, configuration, 2, trans)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
protoWriter := NewDelimitedWriter(sink)
|
|
|
|
err = fsm.Put(context.Background(), &physical.Entry{
|
|
Key: "test-key",
|
|
Value: []byte("test-value"),
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = fsm.Put(context.Background(), &physical.Entry{
|
|
Key: "test-key1",
|
|
Value: []byte("test-value1"),
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Write to the sink
|
|
err = protoWriter.WriteMsg(&pb.StorageEntry{
|
|
Key: "test-key",
|
|
Value: []byte("test-value"),
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
err = protoWriter.WriteMsg(&pb.StorageEntry{
|
|
Key: "test-key1",
|
|
Value: []byte("test-value1"),
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Done!
|
|
err = sink.Close()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Read the snapshot
|
|
meta, r, err := snap.Open(sink.ID())
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Check the latest
|
|
if meta.Index != 10 {
|
|
t.Fatalf("bad snapshot: %+v", meta)
|
|
}
|
|
if meta.Term != 3 {
|
|
t.Fatalf("bad snapshot: %+v", meta)
|
|
}
|
|
if !reflect.DeepEqual(meta.Configuration, configuration) {
|
|
t.Fatalf("bad snapshot: %+v", meta)
|
|
}
|
|
if meta.ConfigurationIndex != 2 {
|
|
t.Fatalf("bad snapshot: %+v", meta)
|
|
}
|
|
|
|
installer, ok := r.(*boltSnapshotInstaller)
|
|
if !ok {
|
|
t.Fatal("expected snapshot installer object")
|
|
}
|
|
|
|
newFSM, err := NewFSM(filepath.Dir(installer.Filename()), "", logger)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = compareDBs(t, fsm.getDB(), newFSM.getDB(), true)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Make sure config data is different
|
|
err = compareDBs(t, fsm.getDB(), newFSM.getDB(), false)
|
|
if err == nil {
|
|
t.Fatal("expected error")
|
|
}
|
|
|
|
if err := newFSM.Close(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = fsm.Restore(installer)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for i := 0; i < 2; i++ {
|
|
latestIndex, latestConfigRaw := fsm.LatestState()
|
|
latestConfigIndex, latestConfig := protoConfigurationToRaftConfiguration(latestConfigRaw)
|
|
if latestIndex.Index != 10 {
|
|
t.Fatalf("bad install: %+v", latestIndex)
|
|
}
|
|
if latestIndex.Term != 3 {
|
|
t.Fatalf("bad install: %+v", latestIndex)
|
|
}
|
|
if !reflect.DeepEqual(latestConfig, configuration) {
|
|
t.Fatalf("bad install: %+v", latestConfig)
|
|
}
|
|
if latestConfigIndex != 2 {
|
|
t.Fatalf("bad install: %+v", latestConfigIndex)
|
|
}
|
|
|
|
v, err := fsm.Get(context.Background(), "test-key")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !bytes.Equal(v.Value, []byte("test-value")) {
|
|
t.Fatalf("bad: %+v", v)
|
|
}
|
|
|
|
v, err = fsm.Get(context.Background(), "test-key1")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !bytes.Equal(v.Value, []byte("test-value1")) {
|
|
t.Fatalf("bad: %+v", v)
|
|
}
|
|
|
|
// Close/Reopen the db and make sure we still match
|
|
fsm.Close()
|
|
fsm, err = NewFSM(parent, "", logger)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBoltSnapshotStore_CancelSnapshot(t *testing.T) {
|
|
// Create a test dir
|
|
dir, err := ioutil.TempDir("", "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
|
|
logger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "raft",
|
|
Level: hclog.Trace,
|
|
})
|
|
|
|
snap, err := NewBoltSnapshotStore(dir, logger, nil)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
_, trans := raft.NewInmemTransport(raft.NewInmemAddr())
|
|
sink, err := snap.Create(raft.SnapshotVersionMax, 10, 3, raft.Configuration{}, 0, trans)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
_, err = sink.Write([]byte("test"))
|
|
if err != nil {
|
|
t.Fatalf("should not fail when using non existing parent: %s", err)
|
|
}
|
|
|
|
// Ensure the snapshot file exists
|
|
_, err = os.Stat(filepath.Join(snap.path, sink.ID()+tmpSuffix, databaseFilename))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Cancel the snapshot! Should delete
|
|
err = sink.Cancel()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Ensure the snapshot file does not exist
|
|
_, err = os.Stat(filepath.Join(snap.path, sink.ID()+tmpSuffix, databaseFilename))
|
|
if !os.IsNotExist(err) {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Make sure future writes fail
|
|
_, err = sink.Write([]byte("test"))
|
|
if err == nil {
|
|
t.Fatal("expected write to fail")
|
|
}
|
|
}
|
|
|
|
func TestBoltSnapshotStore_BadPerm(t *testing.T) {
|
|
var err error
|
|
if runtime.GOOS == "windows" {
|
|
t.Skip("skipping file permission test on windows")
|
|
}
|
|
|
|
// Create a temp dir
|
|
var dir1 string
|
|
dir1, err = ioutil.TempDir("", "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
defer os.RemoveAll(dir1)
|
|
|
|
// Create a sub dir and remove all permissions
|
|
var dir2 string
|
|
dir2, err = ioutil.TempDir(dir1, "badperm")
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
if err = os.Chmod(dir2, 0o00); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
defer os.Chmod(dir2, 777) // Set perms back for delete
|
|
|
|
logger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "raft",
|
|
Level: hclog.Trace,
|
|
})
|
|
|
|
_, err = NewBoltSnapshotStore(dir2, logger, nil)
|
|
if err == nil {
|
|
t.Fatalf("should fail to use dir with bad perms")
|
|
}
|
|
}
|
|
|
|
func TestBoltSnapshotStore_CloseFailure(t *testing.T) {
|
|
// Create a test dir
|
|
dir, err := ioutil.TempDir("", "raft")
|
|
if err != nil {
|
|
t.Fatalf("err: %v ", err)
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
|
|
logger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "raft",
|
|
Level: hclog.Trace,
|
|
})
|
|
|
|
snap, err := NewBoltSnapshotStore(dir, logger, nil)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
_, trans := raft.NewInmemTransport(raft.NewInmemAddr())
|
|
sink, err := snap.Create(raft.SnapshotVersionMax, 10, 3, raft.Configuration{}, 0, trans)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// This should stash an error value
|
|
_, err = sink.Write([]byte("test"))
|
|
if err != nil {
|
|
t.Fatalf("should not fail when using non existing parent: %s", err)
|
|
}
|
|
|
|
// Cancel the snapshot! Should delete
|
|
err = sink.Close()
|
|
if err == nil {
|
|
t.Fatalf("expected error")
|
|
}
|
|
|
|
// Ensure the snapshot file does not exist
|
|
_, err = os.Stat(filepath.Join(snap.path, sink.ID()+tmpSuffix, databaseFilename))
|
|
if !os.IsNotExist(err) {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Make sure future writes fail
|
|
_, err = sink.Write([]byte("test"))
|
|
if err == nil {
|
|
t.Fatal("expected write to fail")
|
|
}
|
|
}
|