Exemple #1
0
func (this *Topics) displayTopicsOfCluster(zkcluster *zk.ZkCluster) {
	echoBuffer := func(lines []string) {
		for _, l := range lines {
			this.Ui.Output(l)
		}
	}

	linesInTopicMode := make([]string, 0)
	if this.verbose {
		linesInTopicMode = this.echoOrBuffer(zkcluster.Name(), linesInTopicMode)
	}

	// get all alive brokers within this cluster
	brokers := zkcluster.Brokers()
	if len(brokers) == 0 {
		linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%4s%s", " ",
			color.Red("%s empty brokers", zkcluster.Name())), linesInTopicMode)
		echoBuffer(linesInTopicMode)
		return
	}

	if this.verbose {
		sortedBrokerIds := make([]string, 0, len(brokers))
		for brokerId, _ := range brokers {
			sortedBrokerIds = append(sortedBrokerIds, brokerId)
		}
		sort.Strings(sortedBrokerIds)
		for _, brokerId := range sortedBrokerIds {
			if this.ipInNumber {
				linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%4s%s %s", " ",
					color.Green(brokerId), brokers[brokerId]), linesInTopicMode)
			} else {
				linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%4s%s %s", " ",
					color.Green(brokerId), brokers[brokerId].NamedString()), linesInTopicMode)
			}

		}
	}

	kfk, err := sarama.NewClient(zkcluster.BrokerList(), saramaConfig())
	if err != nil {
		if this.verbose {
			linesInTopicMode = this.echoOrBuffer(color.Yellow("%5s%+v %s", " ",
				zkcluster.BrokerList(), err.Error()), linesInTopicMode)
		}

		return
	}
	defer kfk.Close()

	topics, err := kfk.Topics()
	swallow(err)
	if len(topics) == 0 {
		if this.topicPattern == "" && this.verbose {
			linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%5s%s", " ",
				color.Magenta("no topics")), linesInTopicMode)
			echoBuffer(linesInTopicMode)
		}

		return
	}

	sortedTopics := make([]string, 0, len(topics))
	for _, t := range topics {
		sortedTopics = append(sortedTopics, t)
	}
	sort.Strings(sortedTopics)

	topicsCtime := zkcluster.TopicsCtime()
	hasTopicMatched := false
	for _, topic := range sortedTopics {
		if !patternMatched(topic, this.topicPattern) {
			continue
		}

		if this.since > 0 && time.Since(topicsCtime[topic]) > this.since {
			continue
		}

		this.topicN++

		hasTopicMatched = true
		if this.verbose {
			linesInTopicMode = this.echoOrBuffer(strings.Repeat(" ", 4)+color.Cyan(topic), linesInTopicMode)
		}

		// get partitions and check if some dead
		alivePartitions, err := kfk.WritablePartitions(topic)
		swallow(err)
		partions, err := kfk.Partitions(topic)
		swallow(err)
		if len(alivePartitions) != len(partions) {
			linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%30s %s %s P: %s/%+v",
				zkcluster.Name(), color.Cyan("%-50s", topic), color.Red("partial dead"), color.Green("%+v", alivePartitions), partions), linesInTopicMode)
		}

		replicas, err := kfk.Replicas(topic, partions[0])
		if err != nil {
			this.Ui.Error(fmt.Sprintf("%s/%d %v", topic, partions[0], err))
		}

		this.partitionN += len(partions)
		if !this.verbose {
			linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%30s %s %3dP %dR %s",
				zkcluster.Name(),
				color.Cyan("%-50s", topic),
				len(partions), len(replicas),
				gofmt.PrettySince(topicsCtime[topic])), linesInTopicMode)
			continue
		}

		for _, partitionID := range alivePartitions {
			leader, err := kfk.Leader(topic, partitionID)
			swallow(err)

			replicas, err := kfk.Replicas(topic, partitionID)
			if err != nil {
				this.Ui.Error(fmt.Sprintf("%s/%d %v", topic, partitionID, err))
			}

			isr, isrMtime, partitionCtime := zkcluster.Isr(topic, partitionID)
			isrMtimeSince := gofmt.PrettySince(isrMtime)
			if time.Since(isrMtime).Hours() < 24 {
				// ever out of sync last 24h
				isrMtimeSince = color.Magenta(isrMtimeSince)
			}

			underReplicated := false
			if len(isr) != len(replicas) {
				underReplicated = true
			}

			latestOffset, err := kfk.GetOffset(topic, partitionID,
				sarama.OffsetNewest)
			swallow(err)

			oldestOffset, err := kfk.GetOffset(topic, partitionID,
				sarama.OffsetOldest)
			swallow(err)

			if this.count > 0 && (latestOffset-oldestOffset) < this.count {
				continue
			}

			this.totalMsgs += latestOffset - oldestOffset
			this.totalOffsets += latestOffset
			if !underReplicated {
				linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%8d Leader:%s Replicas:%+v Isr:%+v Offset:%16s - %-16s Num:%-15s %s-%s",
					partitionID,
					color.Green("%d", leader.ID()), replicas, isr,
					gofmt.Comma(oldestOffset), gofmt.Comma(latestOffset), gofmt.Comma(latestOffset-oldestOffset),
					gofmt.PrettySince(partitionCtime), isrMtimeSince), linesInTopicMode)
			} else {
				// use red for alert
				linesInTopicMode = this.echoOrBuffer(fmt.Sprintf("%8d Leader:%s Replicas:%+v Isr:%s Offset:%16s - %-16s Num:%-15s %s-%s",
					partitionID,
					color.Green("%d", leader.ID()), replicas, color.Red("%+v", isr),
					gofmt.Comma(oldestOffset), gofmt.Comma(latestOffset), gofmt.Comma(latestOffset-oldestOffset),
					gofmt.PrettySince(partitionCtime), isrMtimeSince), linesInTopicMode)
			}
		}
	}

	if this.topicPattern != "" {
		if hasTopicMatched {
			echoBuffer(linesInTopicMode)
		}

	} else {
		echoBuffer(linesInTopicMode)
	}
}