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KAFKA-5358: Consumer perf tool should count rebalance time. #3188

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huxihx wants to merge 15 commits into from
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KAFKA-5358: Consumer perf tool should count rebalance time. #3188

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KAFKA-5358: Consumer perf tool should count rebalance time.
huxi-2b Jun 1, 2017
cbdf6c1
1. Refined the name to `total.rebalance.time`
huxi-2b Jun 2, 2017
7600e6b
Refined time counting for both fetcher and rebalance as per hachikuji…
huxi-2b Jun 6, 2017
08ff452
Correct the counting for total fetch time.
huxi-2b Jun 7, 2017
8c80f13
1. Split `MB.sec` into two parts: `total.MB.sec` and `fetch.MB.sec`
huxi-2b Jun 8, 2017
edf1d08
returned back to the original output format for new consumer
huxi-2b Jun 21, 2017
722e16d
As per hackikuji's comments, refined code to print out rebalance time…
huxi-2b Jun 27, 2017
57bd0e4
resovled conflicts with trunk
huxi-2b Aug 4, 2017
16cc2ca
Merge branch 'trunk' into KAKFA-5358
huxi-2b Aug 4, 2017
3798272
KAFKA-5358: Did not show newly-created headers if `--show-detailed-st…
huxi-2b Aug 4, 2017
bbba9b0
correct printHeader invoking to have testHeaderMatchBody passed
huxi-2b Aug 9, 2017
3a1ce0f
Added newly-created fields for detailed views.
huxi-2b Aug 17, 2017
c517815
1. Added parameter name when invoking testDetailedHeaderMatchBody; 2.…
huxi-2b Aug 21, 2017
9adda74
added a field that tracks periodic join time.
huxi-2b Sep 6, 2017
dfa9422
addressed Jason's last comments
huxi-2b Sep 18, 2017
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20 changes: 15 additions & 5 deletions core/src/main/scala/kafka/tools/ConsumerPerformance.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -54,10 +54,11 @@ object ConsumerPerformance {
val totalBytesRead = new AtomicLong(0)
val consumerTimeout = new AtomicBoolean(false)
var metrics: mutable.Map[MetricName, _ <: Metric] = null
val joinGroupTimeInMs = new AtomicLong(0)

if (!config.hideHeader) {
if (!config.showDetailedStats)
println("start.time, end.time, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec")
println(s"start.time, end.time, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec${if (!config.useOldConsumer) ", join.group.ms" else ""}")

@hachikuji hachikuji Jun 2, 2017

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A couple suggestions:

  1. Maybe the name could be total.rebalance.time or something like that?
  2. Perhaps additionally we could report total.fetch.time?

@huxihx huxihx Jun 2, 2017

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Does total.fetch.time include total.rebalance.time ?

@hachikuji hachikuji Jun 2, 2017

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Let's say they are independent. We could also include total.time, but perhaps no need.

else
println("time, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec")
}
Expand All @@ -67,7 +68,7 @@ object ConsumerPerformance {
val consumer = new KafkaConsumer[Array[Byte], Array[Byte]](config.props)
consumer.subscribe(Collections.singletonList(config.topic))
startMs = System.currentTimeMillis
consume(consumer, List(config.topic), config.numMessages, 1000, config, totalMessagesRead, totalBytesRead)
consume(consumer, List(config.topic), config.numMessages, 1000, config, totalMessagesRead, totalBytesRead, joinGroupTimeInMs)
endMs = System.currentTimeMillis

if (config.printMetrics) {
Expand Down Expand Up @@ -100,8 +101,14 @@ object ConsumerPerformance {
val elapsedSecs = (endMs - startMs) / 1000.0

@hachikuji hachikuji Jun 7, 2017 •
edited
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I think the main point of this patch is to compute the throughput statistics based only on the time spent fetching, so maybe we can move this below and just use fetchTimeInMs.get / 1000.0? We could also report MB.sec as two separate values: total.MB.sec which uses the total time, and fetch.MB.sec which uses only the fetch time. Similarly for nMsg.sec.

if (!config.showDetailedStats) {
val totalMBRead = (totalBytesRead.get * 1.0) / (1024 * 1024)
println("%s, %s, %.4f, %.4f, %d, %.4f".format(config.dateFormat.format(startMs), config.dateFormat.format(endMs),
totalMBRead, totalMBRead / elapsedSecs, totalMessagesRead.get, totalMessagesRead.get / elapsedSecs))
println(s"%s, %s, %.4f, %.4f, %d, %.4f${if (!config.useOldConsumer) ", %d" else "%s"}".format(
config.dateFormat.format(startMs),
config.dateFormat.format(endMs),
totalMBRead,
totalMBRead / elapsedSecs,
totalMessagesRead.get,
totalMessagesRead.get / elapsedSecs,
if (!config.useOldConsumer) joinGroupTimeInMs.get else ""))
}

if (metrics != null) {
Expand All @@ -110,18 +117,20 @@ object ConsumerPerformance {

}

def consume(consumer: KafkaConsumer[Array[Byte], Array[Byte]], topics: List[String], count: Long, timeout: Long, config: ConsumerPerfConfig, totalMessagesRead: AtomicLong, totalBytesRead: AtomicLong) {
def consume(consumer: KafkaConsumer[Array[Byte], Array[Byte]], topics: List[String], count: Long, timeout: Long, config: ConsumerPerfConfig, totalMessagesRead: AtomicLong, totalBytesRead: AtomicLong, joinTime: AtomicLong) {
var bytesRead = 0L
var messagesRead = 0L
var lastBytesRead = 0L
var lastMessagesRead = 0L
var joinEnd = 0L

// Wait for group join, metadata fetch, etc
val joinTimeout = 10000
val isAssigned = new AtomicBoolean(false)
consumer.subscribe(topics.asJava, new ConsumerRebalanceListener {
def onPartitionsAssigned(partitions: util.Collection[TopicPartition]) {
isAssigned.set(true)
joinEnd = System.currentTimeMillis
}
def onPartitionsRevoked(partitions: util.Collection[TopicPartition]) {
isAssigned.set(false)
Expand Down Expand Up @@ -165,6 +174,7 @@ object ConsumerPerformance {

totalMessagesRead.set(messagesRead)
totalBytesRead.set(bytesRead)
joinTime.set(joinEnd - joinStart)

@hachikuji hachikuji Jun 2, 2017

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Perhaps we should allow for the possibility that we have more than one rebalance?

@huxihx huxihx Jun 2, 2017

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Currently, this perf tool does not support multiple consumer instances in one consumer group for new consumer, so is it possible that there will be more than one rebalance?

@hachikuji hachikuji Jun 2, 2017

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The user can pass the groupId as a parameter, so seems possible, right?

@hachikuji hachikuji Jun 2, 2017

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And further rebalances may be possible anyway depending on the state of the brokers.

}

def printProgressMessage(id: Int, bytesRead: Long, lastBytesRead: Long, messagesRead: Long, lastMessagesRead: Long,
Expand Down