mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-12-26 16:45:18 +00:00
416 lines
9.7 KiB
Go
416 lines
9.7 KiB
Go
// Copyright 2019 The LevelDB-Go and Pebble Authors. All rights reserved. Use
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// of this source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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package pebble
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import (
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"bytes"
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"context"
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"fmt"
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"math/rand"
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"slices"
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"sort"
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"strings"
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"sync"
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"testing"
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"github.com/cockroachdb/datadriven"
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"github.com/cockroachdb/pebble/internal/base"
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"github.com/cockroachdb/pebble/vfs"
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"github.com/stretchr/testify/require"
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)
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func TestCheckpoint(t *testing.T) {
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dbs := make(map[string]*DB)
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defer func() {
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for _, db := range dbs {
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if db.closed.Load() == nil {
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require.NoError(t, db.Close())
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}
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}
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}()
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mem := vfs.NewMem()
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var memLog base.InMemLogger
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opts := &Options{
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FS: vfs.WithLogging(mem, memLog.Infof),
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FormatMajorVersion: internalFormatNewest,
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L0CompactionThreshold: 10,
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DisableAutomaticCompactions: true,
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}
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opts.private.disableTableStats = true
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opts.private.testingAlwaysWaitForCleanup = true
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datadriven.RunTest(t, "testdata/checkpoint", func(t *testing.T, td *datadriven.TestData) string {
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switch td.Cmd {
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case "batch":
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if len(td.CmdArgs) != 1 {
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return "batch <db>"
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}
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memLog.Reset()
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d := dbs[td.CmdArgs[0].String()]
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b := d.NewBatch()
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if err := runBatchDefineCmd(td, b); err != nil {
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return err.Error()
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}
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if err := b.Commit(Sync); err != nil {
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return err.Error()
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}
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return memLog.String()
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case "checkpoint":
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if !(len(td.CmdArgs) == 2 || (len(td.CmdArgs) == 3 && td.CmdArgs[2].Key == "restrict")) {
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return "checkpoint <db> <dir> [restrict=(start-end, ...)]"
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}
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var opts []CheckpointOption
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if len(td.CmdArgs) == 3 {
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var spans []CheckpointSpan
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for _, v := range td.CmdArgs[2].Vals {
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splits := strings.SplitN(v, "-", 2)
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if len(splits) != 2 {
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return fmt.Sprintf("invalid restrict range %q", v)
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}
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spans = append(spans, CheckpointSpan{
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Start: []byte(splits[0]),
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End: []byte(splits[1]),
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})
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}
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opts = append(opts, WithRestrictToSpans(spans))
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}
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memLog.Reset()
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d := dbs[td.CmdArgs[0].String()]
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if err := d.Checkpoint(td.CmdArgs[1].String(), opts...); err != nil {
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return err.Error()
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}
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return memLog.String()
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case "ingest-and-excise":
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d := dbs[td.CmdArgs[0].String()]
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// Hacky but the command doesn't expect a db string. Get rid of it.
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td.CmdArgs = td.CmdArgs[1:]
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if err := runIngestAndExciseCmd(td, d, mem); err != nil {
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return err.Error()
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}
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return ""
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case "build":
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d := dbs[td.CmdArgs[0].String()]
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// Hacky but the command doesn't expect a db string. Get rid of it.
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td.CmdArgs = td.CmdArgs[1:]
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if err := runBuildCmd(td, d, mem); err != nil {
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return err.Error()
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}
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return ""
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case "lsm":
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d := dbs[td.CmdArgs[0].String()]
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// Hacky but the command doesn't expect a db string. Get rid of it.
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td.CmdArgs = td.CmdArgs[1:]
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return runLSMCmd(td, d)
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case "compact":
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if len(td.CmdArgs) != 1 {
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return "compact <db>"
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}
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memLog.Reset()
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d := dbs[td.CmdArgs[0].String()]
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if err := d.Compact(nil, []byte("\xff"), false); err != nil {
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return err.Error()
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}
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d.TestOnlyWaitForCleaning()
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return memLog.String()
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case "print-backing":
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// prints contents of the file backing map in the version. Used to
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// test whether the checkpoint removed the filebackings correctly.
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if len(td.CmdArgs) != 1 {
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return "print-backing <db>"
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}
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d := dbs[td.CmdArgs[0].String()]
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d.mu.Lock()
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d.mu.versions.logLock()
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var fileNums []base.DiskFileNum
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for _, b := range d.mu.versions.backingState.fileBackingMap {
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fileNums = append(fileNums, b.DiskFileNum)
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}
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d.mu.versions.logUnlock()
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d.mu.Unlock()
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slices.Sort(fileNums)
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var buf bytes.Buffer
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for _, f := range fileNums {
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buf.WriteString(fmt.Sprintf("%s\n", f.String()))
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}
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return buf.String()
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case "close":
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if len(td.CmdArgs) != 1 {
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return "close <db>"
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}
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d := dbs[td.CmdArgs[0].String()]
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require.NoError(t, d.Close())
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return ""
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case "flush":
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if len(td.CmdArgs) != 1 {
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return "flush <db>"
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}
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memLog.Reset()
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d := dbs[td.CmdArgs[0].String()]
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if err := d.Flush(); err != nil {
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return err.Error()
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}
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return memLog.String()
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case "list":
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if len(td.CmdArgs) != 1 {
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return "list <dir>"
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}
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paths, err := mem.List(td.CmdArgs[0].String())
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if err != nil {
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return err.Error()
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}
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sort.Strings(paths)
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return fmt.Sprintf("%s\n", strings.Join(paths, "\n"))
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case "open":
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if len(td.CmdArgs) != 1 && len(td.CmdArgs) != 2 {
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return "open <dir> [readonly]"
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}
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opts.ReadOnly = false
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if len(td.CmdArgs) == 2 {
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if td.CmdArgs[1].String() != "readonly" {
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return "open <dir> [readonly]"
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}
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opts.ReadOnly = true
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}
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memLog.Reset()
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dir := td.CmdArgs[0].String()
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d, err := Open(dir, opts)
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if err != nil {
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return err.Error()
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}
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dbs[dir] = d
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return memLog.String()
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case "scan":
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if len(td.CmdArgs) != 1 {
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return "scan <db>"
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}
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memLog.Reset()
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d := dbs[td.CmdArgs[0].String()]
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iter, _ := d.NewIter(nil)
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for valid := iter.First(); valid; valid = iter.Next() {
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memLog.Infof("%s %s", iter.Key(), iter.Value())
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}
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memLog.Infof(".")
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if err := iter.Close(); err != nil {
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memLog.Infof("%v\n", err)
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}
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return memLog.String()
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default:
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return fmt.Sprintf("unknown command: %s", td.Cmd)
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}
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})
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}
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func TestCheckpointCompaction(t *testing.T) {
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fs := vfs.NewMem()
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d, err := Open("", &Options{FS: fs})
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require.NoError(t, err)
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ctx, cancel := context.WithCancel(context.Background())
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var wg sync.WaitGroup
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wg.Add(4)
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go func() {
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defer cancel()
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defer wg.Done()
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for i := 0; ctx.Err() == nil; i++ {
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if err := d.Set([]byte(fmt.Sprintf("key%06d", i)), nil, nil); err != nil {
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t.Error(err)
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return
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}
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}
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}()
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go func() {
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defer cancel()
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defer wg.Done()
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for ctx.Err() == nil {
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if err := d.Compact([]byte("key"), []byte("key999999"), false); err != nil {
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t.Error(err)
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return
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}
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}
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}()
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check := make(chan string, 100)
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go func() {
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defer cancel()
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defer close(check)
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defer wg.Done()
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for i := 0; ctx.Err() == nil && i < 200; i++ {
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dir := fmt.Sprintf("checkpoint%06d", i)
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if err := d.Checkpoint(dir); err != nil {
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t.Error(err)
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return
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}
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select {
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case <-ctx.Done():
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return
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case check <- dir:
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}
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}
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}()
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go func() {
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opts := &Options{FS: fs}
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defer cancel()
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defer wg.Done()
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for dir := range check {
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d2, err := Open(dir, opts)
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if err != nil {
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t.Error(err)
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return
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}
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// Check the checkpoint has all the sstables that the manifest
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// claims it has.
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tableInfos, _ := d2.SSTables()
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for _, tables := range tableInfos {
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for _, tbl := range tables {
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if tbl.Virtual {
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continue
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}
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if _, err := fs.Stat(base.MakeFilepath(fs, dir, base.FileTypeTable, tbl.FileNum.DiskFileNum())); err != nil {
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t.Error(err)
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return
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}
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}
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}
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if err := d2.Close(); err != nil {
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t.Error(err)
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return
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}
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}
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}()
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<-ctx.Done()
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wg.Wait()
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require.NoError(t, d.Close())
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}
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func TestCheckpointFlushWAL(t *testing.T) {
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const checkpointPath = "checkpoints/checkpoint"
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fs := vfs.NewStrictMem()
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opts := &Options{FS: fs}
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key, value := []byte("key"), []byte("value")
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// Create a checkpoint from an unsynced DB.
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{
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d, err := Open("", opts)
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require.NoError(t, err)
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{
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wb := d.NewBatch()
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err = wb.Set(key, value, nil)
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require.NoError(t, err)
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err = d.Apply(wb, NoSync)
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require.NoError(t, err)
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}
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err = d.Checkpoint(checkpointPath, WithFlushedWAL())
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require.NoError(t, err)
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require.NoError(t, d.Close())
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fs.ResetToSyncedState()
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}
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// Check that the WAL has been flushed in the checkpoint.
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{
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files, err := fs.List(checkpointPath)
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require.NoError(t, err)
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hasLogFile := false
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for _, f := range files {
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info, err := fs.Stat(fs.PathJoin(checkpointPath, f))
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require.NoError(t, err)
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if strings.HasSuffix(f, ".log") {
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hasLogFile = true
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require.NotZero(t, info.Size())
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}
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}
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require.True(t, hasLogFile)
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}
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// Check that the checkpoint contains the expected data.
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{
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d, err := Open(checkpointPath, opts)
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require.NoError(t, err)
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iter, _ := d.NewIter(nil)
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require.True(t, iter.First())
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require.Equal(t, key, iter.Key())
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require.Equal(t, value, iter.Value())
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require.False(t, iter.Next())
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require.NoError(t, iter.Close())
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require.NoError(t, d.Close())
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}
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}
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func TestCheckpointManyFiles(t *testing.T) {
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if testing.Short() {
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t.Skip("skipping because of short flag")
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}
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const checkpointPath = "checkpoint"
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opts := &Options{
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FS: vfs.NewMem(),
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FormatMajorVersion: internalFormatNewest,
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DisableAutomaticCompactions: true,
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}
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// Disable compression to speed up the test.
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opts.EnsureDefaults()
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for i := range opts.Levels {
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opts.Levels[i].Compression = NoCompression
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}
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d, err := Open("", opts)
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require.NoError(t, err)
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defer d.Close()
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mkKey := func(x int) []byte {
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return []byte(fmt.Sprintf("key%06d", x))
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}
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// We want to test the case where the appended record with the excluded files
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// makes the manifest cross 32KB. This will happen for a range of values
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// around 450.
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n := 400 + rand.Intn(100)
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for i := 0; i < n; i++ {
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err := d.Set(mkKey(i), nil, nil)
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require.NoError(t, err)
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err = d.Flush()
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require.NoError(t, err)
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}
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err = d.Checkpoint(checkpointPath, WithRestrictToSpans([]CheckpointSpan{
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{
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Start: mkKey(0),
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End: mkKey(10),
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},
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}))
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require.NoError(t, err)
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// Open the checkpoint and iterate through all the keys.
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{
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d, err := Open(checkpointPath, opts)
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require.NoError(t, err)
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iter, _ := d.NewIter(nil)
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require.True(t, iter.First())
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require.NoError(t, iter.Error())
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n := 1
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for iter.Next() {
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n++
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}
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require.NoError(t, iter.Error())
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require.NoError(t, iter.Close())
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require.NoError(t, d.Close())
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require.Equal(t, 10, n)
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}
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}
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