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tool.go
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tool.go
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package main
import (
"flag"
"fmt"
"log"
"path"
"time"
"github.com/youzan/nsq/consistence"
"github.com/youzan/nsq/internal/clusterinfo"
"github.com/youzan/nsq/internal/http_api"
"github.com/youzan/nsq/internal/levellogger"
"github.com/youzan/nsq/internal/version"
"github.com/youzan/nsq/nsqd"
)
var (
showVersion = flag.Bool("version", false, "print version string")
topic = flag.String("topic", "", "NSQ topic")
partition = flag.Int("partition", -1, "NSQ topic partition")
dataPath = flag.String("data_path", "", "the data path of nsqd")
srcNsqLookupd = flag.String("src_nsqlookupd", "", "")
dstNsqLookupd = flag.String("dest_nsqlookupd", "", "")
view = flag.String("view", "commitlog", "commitlog | topicdata | delayedqueue")
searchMode = flag.String("search_mode", "count", "the view start of mode. (count|id|timestamp|virtual_offset|check_channels)")
viewStart = flag.Int64("view_start", 0, "the start count of message.")
viewStartID = flag.Int64("view_start_id", 0, "the start id of message.")
viewStartTimestamp = flag.Int64("view_start_timestamp", 0, "the start timestamp of message.")
viewOffset = flag.Int64("view_offset", 0, "the virtual offset of the queue")
viewCnt = flag.Int("view_cnt", 1, "the total count need to be viewed. should less than 1,000,000")
viewCh = flag.String("view_channel", "", "channel detail need to view")
logLevel = flag.Int("level", 3, "log level")
//TODO: add ext ver for decode message
isExt = flag.Bool("ext", false, "is there extension for message ")
)
func getBackendName(topicName string, part int) string {
backendName := nsqd.GetTopicFullName(topicName, part)
return backendName
}
func checkChannelStats() {
lsrc := clusterinfo.LookupdAddressDC{
DC: "",
Addr: *srcNsqLookupd,
}
client := http_api.NewClient(nil)
ci := clusterinfo.New(nil, client)
srcnodes, err := ci.GetLookupdProducers([]clusterinfo.LookupdAddressDC{lsrc})
if err != nil {
log.Printf("error: %v", err.Error())
return
}
_, channels, err := ci.GetNSQDStats(srcnodes, "", "", true)
if err != nil {
log.Printf("error: %v", err.Error())
return
}
ldest := clusterinfo.LookupdAddressDC{
DC: "",
Addr: *dstNsqLookupd,
}
destnodes, err := ci.GetLookupdProducers([]clusterinfo.LookupdAddressDC{ldest})
if err != nil {
log.Printf("error: %v", err.Error())
return
}
_, channels2, err := ci.GetNSQDStats(destnodes, "", "", true)
if err != nil {
log.Printf("error: %v", err.Error())
return
}
for name, ch := range channels {
ch2, ok := channels2[name]
if !ok {
log.Printf("src channel not found in dst: %v", name)
continue
}
if ch.Skipped == ch2.Skipped && ch.Paused == ch2.Paused {
continue
}
log.Printf("ch %v mismatch, src channel (paused: %v, skipped: %v), dest channel: (%v, %v)\n", name, ch.Paused, ch.Skipped,
ch2.Paused, ch2.Skipped)
}
for name, ch := range channels2 {
ch2, ok := channels[name]
if !ok {
log.Printf("dest channel not found in src: %v", name)
continue
}
if ch.Skipped == ch2.Skipped && ch.Paused == ch2.Paused {
continue
}
log.Printf("ch %v mismatch, src channel (paused: %v, skipped: %v), dest channel: (%v, %v)\n", name, ch2.Paused, ch2.Skipped,
ch.Paused, ch.Skipped)
}
}
func main() {
flag.Parse()
if *showVersion {
fmt.Printf("nsq_data_tool v%s\n", version.Binary)
return
}
if *searchMode == "check_channels" {
checkChannelStats()
return
}
nsqd.SetLogger(levellogger.NewSimpleLog())
nsqd.NsqLogger().SetLevel(int32(*logLevel))
consistence.SetCoordLogger(levellogger.NewSimpleLog(), int32(*logLevel))
if *topic == "" {
log.Fatal("--topic is required\n")
}
if *partition == -1 {
log.Fatal("--partition is required")
}
if *dataPath == "" {
log.Fatal("--data_path is required")
}
if *viewCnt > 1000000 {
log.Fatal("--view_cnt is too large")
}
topicDataPath := path.Join(*dataPath, *topic)
topicCommitLogPath := consistence.GetTopicPartitionBasePath(*dataPath, *topic, *partition)
tpLogMgr, err := consistence.InitTopicCommitLogMgr(*topic, *partition, topicCommitLogPath, 0)
if err != nil {
log.Fatalf("loading commit log %v failed: %v\n", topicCommitLogPath, err)
}
logIndex, lastOffset, lastLogData, err := tpLogMgr.GetLastCommitLogOffsetV2()
if err != nil {
log.Fatalf("loading last commit log failed: %v\n", err)
}
log.Printf("topic last commit log at %v:%v is : %v\n", logIndex, lastOffset, lastLogData)
backendName := getBackendName(*topic, *partition)
backendWriter, err := nsqd.NewDiskQueueWriterForRead(backendName, topicDataPath, 1024*1024*1024, 1, 1024*1024*100, 1)
if err != nil {
if *view != "commitlog" {
log.Fatalf("init disk writer failed: %v", err)
return
}
}
if *view == "delayedqueue" {
opts := &nsqd.Options{
MaxBytesPerFile: 1024 * 1024 * 100,
}
nsqd.NsqLogger().Infof("checking delayed")
delayQ, err := nsqd.NewDelayQueueForRead(*topic, *partition, topicDataPath, opts, nil, false)
if err != nil {
log.Fatalf("init delayed queue failed: %v", err)
}
recentKeys, cntList, chCntList := delayQ.GetOldestConsumedState([]string{*viewCh}, true)
for _, k := range recentKeys {
nsqd.NsqLogger().Infof("delayed recent: %v", k)
}
nsqd.NsqLogger().Infof("cnt list: %v", cntList)
for k, v := range chCntList {
nsqd.NsqLogger().Infof("channel %v cnt : %v", k, v)
}
rets := make([]nsqd.Message, *viewCnt)
cnt, err := delayQ.PeekRecentChannelTimeout(time.Now().UnixNano(), rets, *viewCh)
if err != nil {
nsqd.NsqLogger().Infof("peek recent timeout failed: %v", err.Error())
return
}
for _, m := range rets[:cnt] {
nsqd.NsqLogger().Infof("peeked channel msg : %v", m)
}
cnt, _ = delayQ.PeekAll(rets)
for _, m := range rets[:cnt] {
nsqd.NsqLogger().Infof("peeked msg : %v", m)
}
return
}
// note: since there may be exist group commit. It is not simple to do the direct position of log.
// we need to search in the ordered log data.
searchOffset := int64(0)
searchLogIndexStart := int64(0)
if *searchMode == "count" {
searchLogIndexStart, searchOffset, _, err = tpLogMgr.SearchLogDataByMsgCnt(*viewStart)
if err != nil {
log.Fatalln(err)
}
} else if *searchMode == "id" {
searchLogIndexStart, searchOffset, _, err = tpLogMgr.SearchLogDataByMsgID(*viewStartID)
if err != nil {
log.Fatalln(err)
}
} else if *searchMode == "virtual_offset" {
searchLogIndexStart, searchOffset, _, err = tpLogMgr.SearchLogDataByMsgOffset(*viewOffset)
if err != nil {
log.Fatalln(err)
}
} else {
log.Fatalln("not supported search mode")
}
logData, err := tpLogMgr.GetCommitLogFromOffsetV2(searchLogIndexStart, searchOffset)
if err != nil {
log.Fatalf("topic read at: %v:%v failed: %v\n", searchLogIndexStart, searchOffset, err)
}
log.Printf("topic read at: %v:%v, %v\n", searchLogIndexStart, searchOffset, logData)
if *view == "commitlog" {
logs, err := tpLogMgr.GetCommitLogsV2(searchLogIndexStart, searchOffset, int(*viewCnt))
if err != nil {
if err != consistence.ErrCommitLogEOF {
log.Fatalf("get logs failed: %v", err)
return
}
}
for _, l := range logs {
fmt.Println(l)
}
} else if *view == "topicdata" {
queueOffset := logData.MsgOffset
if *searchMode == "virtual_offset" {
if queueOffset != *viewOffset {
queueOffset = *viewOffset
log.Printf("search virtual offset not the same : %v, %v\n", logData.MsgOffset, *viewOffset)
}
}
backendReader := nsqd.NewDiskQueueSnapshot(backendName, topicDataPath, backendWriter.GetQueueReadEnd())
backendReader.SetQueueStart(backendWriter.GetQueueReadStart())
if queueOffset == 0 {
backendReader.SeekTo(nsqd.BackendOffset(queueOffset), 0)
} else {
backendReader.SeekTo(nsqd.BackendOffset(queueOffset), logData.MsgCnt-1)
}
cnt := *viewCnt
for cnt > 0 {
cnt--
ret := backendReader.ReadOne()
if ret.Err != nil {
log.Fatalf("read data error: %v", ret)
return
}
fmt.Printf("%v:%v:%v:%v, string: %v\n", ret.Offset, ret.MovedSize, ret.CurCnt, ret.Data, string(ret.Data))
msg, err := nsqd.DecodeMessage(ret.Data, *isExt)
if err != nil {
log.Fatalf("decode data error: %v", err)
continue
}
fmt.Printf("%v:%v:%v:%v, body: %v\n", msg.ID, msg.TraceID, msg.Timestamp, msg.Attempts, string(msg.Body))
}
}
}