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tool: dump tool supports index

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This commit is contained in:
Xiang Li 2015-02-17 21:01:06 -08:00
parent 7c65857283
commit d6f8a30f7c
1 changed files with 32 additions and 20 deletions
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52
tools/etcd-dump-logs/main.go
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@ -32,35 +32,47 @@ import (
func main() {
from := flag.String("data-dir", "", "")
snapfile := flag.String("snap-file", "", "The base name of snapshot file to read")
snapfile := flag.String("start-snap", "", "The base name of snapshot file to start dumping")
index := flag.Uint64("start-index", 0, "The index to start dumping")
flag.Parse()
if *from == "" {
log.Fatal("Must provide -data-dir flag")
log.Fatal("Must provide -data-dir flag.")
}
if *snapfile != "" && *index != 0 {
log.Fatal("start-snap and start-index flags cannot be used together.")
}
var (
walsnap walpb.Snapshot
snapshot *raftpb.Snapshot
err error
)
if *snapfile == "" {
ss := snap.New(snapDir(*from))
snapshot, err = ss.Load()
} else {
snapshot, err = snap.Read(path.Join(snapDir(*from), *snapfile))
}
isIndex := *index != 0
var walsnap walpb.Snapshot
switch err {
case nil:
walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
nodes := genIDSlice(snapshot.Metadata.ConfState.Nodes)
fmt.Printf("Snapshot:\nterm=%d index=%d nodes=%s\n",
walsnap.Term, walsnap.Index, nodes)
case snap.ErrNoSnapshot:
fmt.Printf("Snapshot:\nempty\n")
default:
log.Fatalf("Failed loading snapshot: %v", err)
if isIndex {
fmt.Printf("Start dumping log entries from index %d.\n", *index)
walsnap.Index = *index
} else {
if *snapfile == "" {
ss := snap.New(snapDir(*from))
snapshot, err = ss.Load()
} else {
snapshot, err = snap.Read(path.Join(snapDir(*from), *snapfile))
}
switch err {
case nil:
walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
nodes := genIDSlice(snapshot.Metadata.ConfState.Nodes)
fmt.Printf("Snapshot:\nterm=%d index=%d nodes=%s\n",
walsnap.Term, walsnap.Index, nodes)
case snap.ErrNoSnapshot:
fmt.Printf("Snapshot:\nempty\n")
default:
log.Fatalf("Failed loading snapshot: %v", err)
}
fmt.Println("Start dupmping log entries from snapshot.")
}
w, err := wal.Open(walDir(*from), walsnap)
@ -69,7 +81,7 @@ func main() {
}
wmetadata, state, ents, err := w.ReadAll()
w.Close()
if err != nil {
if err != nil && (!isIndex || err != wal.ErrSnapshotNotFound) {
log.Fatalf("Failed reading WAL: %v", err)
}
id, cid := parseWALMetadata(wmetadata)