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Posted to users@kafka.apache.org by Sa Li <sa...@gmail.com> on 2015/02/03 19:32:55 UTC
Re: Number of Consumers Connected
GuoZhang
Sorry for leaving this topic for a while, I am still not clear how to
commit the offset to zk from commandline, I tried this
bin/kafka-console-consumer.sh --zookeeper 10.100.71.33:2181 --topic
pipe-test-2 --from-beginning --property pipe
It seems generate a console-consumer-001 in zK, but when I did that to
other topics, nothing in zk, (I can't read anything from consumer group in
kafka-web-console), see
[zk: localhost:2181(CONNECTED) 2] ls /consumers/web-console-consumer-38650
[offsets, owners, ids]
[zk: localhost:2181(CONNECTED) 3] ls
/consumers/web-console-consumer-38650/offsets
[PofApiTest-1]
[zk: localhost:2181(CONNECTED) 4] ls
/consumers/web-console-consumer-38650/offsets/PofApiTest-1
[3, 2, 1, 0, 7, 6, 5, 4]
[zk: localhost:2181(CONNECTED) 5] ls
/consumers/web-console-consumer-38650/offsets/PofApiTest-1/3
[]
Any ideas?
thanks
AL
On Tue, Jan 20, 2015 at 9:57 PM, Guozhang Wang <wa...@gmail.com> wrote:
> It seems not the latest version of Kafka, which version are you using?
>
> On Tue, Jan 20, 2015 at 9:46 AM, Sa Li <sa...@gmail.com> wrote:
>
> > Guozhang
> >
> > Thank you very much for reply, here I print out the
> > kafka-console-consumer.sh help,
> >
> > root@voluminous-mass:/srv/kafka# bin/kafka-console-consumer.sh
> > Missing required argument "[zookeeper]"
> > Option Description
> > ------ -----------
> > --autocommit.interval.ms <Integer: ms> The time interval at which to
> save
> > the
> > current offset in ms (default:
> > 60000)
> > --blacklist <blacklist> Blacklist of topics to exclude
> from
> > consumption.
> > --consumer-timeout-ms <Integer: prop> consumer throws timeout exception
> > after waiting this much of time
> > without incoming messages
> > (default:
> > -1)
> > --csv-reporter-enabled If set, the CSV metrics reporter
> > will
> > be enabled
> > --fetch-size <Integer: size> The amount of data to fetch in a
> > single request. (default:
> > 1048576)
> > --formatter <class> The name of a class to use for
> > formatting kafka messages for
> > display. (default:
> > kafka.consumer.
> > DefaultMessageFormatter)
> > --from-beginning If the consumer does not already
> > have
> > an established offset to
> consume
> > from, start with the earliest
> > message present in the log
> rather
> > than the latest message.
> > --group <gid> The group id to consume on.
> > (default:
> > console-consumer-85664)
> > --max-messages <Integer: num_messages> The maximum number of messages to
> > consume before exiting. If not
> > set,
> > consumption is continual.
> > --max-wait-ms <Integer: ms> The max amount of time each fetch
> > request waits. (default: 100)
> > --metrics-dir <metrics dictory> If csv-reporter-enable is set,
> and
> > this parameter isset, the csv
> > metrics will be outputed here
> > --min-fetch-bytes <Integer: bytes> The min number of bytes each
> fetch
> > request waits for. (default: 1)
> > --property <prop>
> > --refresh-leader-backoff-ms <Integer: Backoff time before refreshing
> > ms> metadata (default: 200)
> > --skip-message-on-error If there is an error when
> > processing a
> > message, skip it instead of
> halt.
> > --socket-buffer-size <Integer: size> The size of the tcp RECV size.
> > (default: 2097152)
> > --socket-timeout-ms <Integer: ms> The socket timeout used for the
> > connection to the broker
> > (default:
> > 30000)
> > --topic <topic> The topic id to consume on.
> > --whitelist <whitelist> Whitelist of topics to include
> for
> > consumption.
> > --zookeeper <urls> REQUIRED: The connection string
> for
> > the zookeeper connection in the
> > form
> > host:port. Multiple URLS can be
> > given to allow fail-over.
> >
> > --property option is not provided the description, is there an example
> how
> > to use it?
> >
> > thanks
> >
> > AL
> >
> > On Mon, Jan 19, 2015 at 6:30 PM, Guozhang Wang <wa...@gmail.com>
> wrote:
> >
> > > There is a property config you can set via
> bin/kafka-console-consumer.sh
> > to
> > > commit offsets to ZK, you can use bin/kafka-console-consumer.sh --help
> to
> > > list all the properties.
> > >
> > > Guozhang
> > >
> > > On Mon, Jan 19, 2015 at 5:15 PM, Sa Li <sa...@gmail.com> wrote:
> > >
> > > > Guozhang,
> > > >
> > > > Currently we are in the stage to testing producer, our C# producer
> > > sending
> > > > data to brokers, and use
> > > >
> > > > bin/kafka-run-class.sh
> > org.apache.kafka.clients.tools.ProducerPerformance
> > > > command to produce the messages. We don't have a coded consumer to
> > commit
> > > > offset, we use
> > > > bin/kafka-console-consumer.sh --zookeeper command to consume, is
> there
> > a
> > > > command that we can use on command line to create zk path?
> > > >
> > > > thanks
> > > >
> > > > AL
> > > >
> > > > On Mon, Jan 19, 2015 at 4:14 PM, Guozhang Wang <wa...@gmail.com>
> > > wrote:
> > > >
> > > > > Sa,
> > > > >
> > > > > Did your consumer ever commit offsets to Kafka? If not then no
> > > > > corresponding ZK path will be created.
> > > > >
> > > > > Guozhang
> > > > >
> > > > > On Mon, Jan 19, 2015 at 3:58 PM, Sa Li <sa...@gmail.com> wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > I use such tool
> > > > > >
> > > > > > Consumer Offset Checker
> > > > > >
> > > > > > Displays the: Consumer Group, Topic, Partitions, Offset,
> logSize,
> > > Lag,
> > > > > > Owner for the specified set of Topics and Consumer Group
> > > > > > bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker
> > > > > >
> > > > > > To be able to know the consumer group, in zkCli.sh
> > > > > >
> > > > > > [zk: localhost:2181(CONNECTED) 3] ls /
> > > > > > [transactional, admin, zookeeper, consumers, config, controller,
> > > storm,
> > > > > > brokers, controller_epoch]
> > > > > > [zk: localhost:2181(CONNECTED) 4] ls /consumers
> > > > > > [web-console-consumer-99295, web-console-consumer-37853,
> > > > > > web-console-consumer-30841, perf-consumer-92283,
> > perf-consumer-21631,
> > > > > > perf-consumer-95281, perf-consumer-59296,
> > web-console-consumer-52126,
> > > > > > web-console-consumer-89137, perf-consumer-72484,
> > perf-consumer-80363,
> > > > > > web-console-consumer-47543, web-console-consumer-22509,
> > > > > > perf-consumer-16954, perf-consumer-53957, perf-consumer-39448,
> > > > > > web-console-consumer-17021, perf-consumer-88693,
> > > > > > web-console-consumer-48744, web-console-consumer-82543,
> > > > > > perf-consumer-89565, web-console-consumer-97959,
> > perf-consumer-40427,
> > > > > > web-console-consumer-95350, web-console-consumer-26473,
> > > > > > web-console-consumer-79384, web-console-consumer-87777,
> > > > > > perf-consumer-91681, web-console-consumer-36136,
> > > > > > web-console-consumer-86924, perf-consumer-24510,
> > perf-consumer-5888,
> > > > > > perf-consumer-73534, perf-consumer-92985, perf-consumer-7675,
> > > > > > perf-consumer-52306, perf-consumer-87352,
> > web-console-consumer-30400]
> > > > > > [zk: localhost:2181(CONNECTED) 5]
> > > > > >
> > > > > > I then run
> > > > > >
> > > > > > root@exemplary-birds:/srv/kafka# bin/kafka-run-class.sh
> > > > > > kafka.tools.ConsumerOffsetChecker --topic PofApiTest-1 --group
> > > > > > web-console-consumer-48744
> > > > > > Group Topic Pid Offset
> > > > > > logSize Lag Owner
> > > > > > Exception in thread "main"
> > > > > org.I0Itec.zkclient.exception.ZkNoNodeException:
> > > > > > org.apache.zookeeper.KeeperException$NoNodeException:
> > > KeeperErrorCode =
> > > > > > NoNode for
> > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > at
> > > > > >
> > org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
> > > > > > at
> > > > > >
> org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:685)
> > > > > > at
> org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:766)
> > > > > > at
> org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:761)
> > > > > > at kafka.utils.ZkUtils$.readData(ZkUtils.scala:461)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processPartition(ConsumerOffsetChecker.scala:59)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply$mcVI$sp(ConsumerOffsetChecker.scala:89)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> > > > > > at
> > > > > >
> scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processTopic(ConsumerOffsetChecker.scala:88)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > at
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > at
> scala.collection.immutable.List.foreach(List.scala:318)
> > > > > > at
> > > > > >
> > > >
> > kafka.tools.ConsumerOffsetChecker$.main(ConsumerOffsetChecker.scala:152)
> > > > > > at
> > > > > >
> kafka.tools.ConsumerOffsetChecker.main(ConsumerOffsetChecker.scala)
> > > > > > Caused by: org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > > KeeperErrorCode = NoNode for
> > > > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > at
> > > > > >
> > org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
> > > > > > at
> > > > > >
> > org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> > > > > > at
> > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927)
> > > > > > at
> > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:956)
> > > > > > at
> > > > > org.I0Itec.zkclient.ZkConnection.readData(ZkConnection.java:103)
> > > > > > at org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:770)
> > > > > > at org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:766)
> > > > > > at
> > > > > >
> org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> > > > > > ... 15 more
> > > > > >
> > > > > > So consumer groups make confusing, I didn't specify the
> > > > consumer-group-id
> > > > > > in producer, the only place I know to config group is
> > > > consumer.properties
> > > > > >
> > > > > >
> > > > > > #consumer group id
> > > > > > group.id=test-consumer-group
> > > > > >
> > > > > >
> > > > > > Any hints? Thanks
> > > > > >
> > > > > >
> > > > > > AL
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Mon, Dec 15, 2014 at 6:46 PM, nitin sharma <
> > > > > kumarsharma.nitin@gmail.com
> > > > > > >
> > > > > > wrote:
> > > > > >
> > > > > > > got it ... thanks a lot.
> > > > > > >
> > > > > > > Regards,
> > > > > > > Nitin Kumar Sharma.
> > > > > > >
> > > > > > >
> > > > > > > On Mon, Dec 15, 2014 at 9:26 PM, Gwen Shapira <
> > > gshapira@cloudera.com
> > > > >
> > > > > > > wrote:
> > > > > > > >
> > > > > > > > Hi Nitin,
> > > > > > > >
> > > > > > > > Go to where you installed zookeeper and run:
> > > > > > > >
> > > > > > > > bin/zkCli.sh -server 127.0.0.1:2181
> > > > > > > >
> > > > > > > > On Mon, Dec 15, 2014 at 6:09 PM, nitin sharma
> > > > > > > > <ku...@gmail.com> wrote:
> > > > > > > > > Thanks Neha and Gwen for your responses..
> > > > > > > > >
> > > > > > > > > @Gwen -- Kindly explain how to perform the steps you have
> > > > > mentioned.
> > > > > > > how
> > > > > > > > > should i connect to a zookeeper..?
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On Mon, Dec 15, 2014 at 6:36 PM, Neha Narkhede <
> > > > neha@confluent.io>
> > > > > > > > wrote:
> > > > > > > > >>
> > > > > > > > >> In addition to Gwen's suggestion, we actually don't have
> jmx
> > > > > metrics
> > > > > > > > that
> > > > > > > > >> give you a list of actively consuming processes.
> > > > > > > > >>
> > > > > > > > >> On Mon, Dec 15, 2014 at 12:59 PM, Gwen Shapira <
> > > > > > gshapira@cloudera.com
> > > > > > > >
> > > > > > > > >> wrote:
> > > > > > > > >> >
> > > > > > > > >> > Currently you can find the number of consumer groups
> > through
> > > > > > > > ZooKeeper:
> > > > > > > > >> >
> > > > > > > > >> > connect to ZK and run
> > > > > > > > >> > ls /consumers
> > > > > > > > >> >
> > > > > > > > >> > and count the number of results
> > > > > > > > >> >
> > > > > > > > >> > On Mon, Dec 15, 2014 at 11:34 AM, nitin sharma
> > > > > > > > >> > <ku...@gmail.com> wrote:
> > > > > > > > >> > > Hi Team,
> > > > > > > > >> > >
> > > > > > > > >> > > Is it possible to know how many Consumer Group
> connected
> > > to
> > > > > > kafka
> > > > > > > > >> broker
> > > > > > > > >> > Ids
> > > > > > > > >> > > and as well as how many Instances within a Group are
> > > > fetching
> > > > > > > > messages
> > > > > > > > >> > from
> > > > > > > > >> > > Kafka Brokers
> > > > > > > > >> > >
> > > > > > > > >> > > Regards,
> > > > > > > > >> > > Nitin Kumar Sharma.
> > > > > > > > >> >
> > > > > > > > >>
> > > > > > > > >>
> > > > > > > > >> --
> > > > > > > > >> Thanks,
> > > > > > > > >> Neha
> > > > > > > > >>
> > > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > >
> > > > > > Alec Li
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > -- Guozhang
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > >
> > > > Alec Li
> > > >
> > >
> > >
> > >
> > > --
> > > -- Guozhang
> > >
> >
> >
> >
> > --
> >
> > Alec Li
> >
>
>
>
> --
> -- Guozhang
>
--
Alec Li
Re: Number of Consumers Connected
Posted by Guozhang Wang <wa...@gmail.com>.
You can specify the consumer configs in the config file pointed by
"--consumer.config <config file> Consumer config properties file.",
for example:
auto.commit.enable=true
auto.commit.interval.ms=1000
Guozhang
On Tue, Feb 3, 2015 at 4:54 PM, Sa Li <sa...@gmail.com> wrote:
> Hi, Guozhang
>
> Thank you very much for the reply, as you mentioned, I download the latest
> version
>
>
> https://www.apache.org/dyn/closer.cgi?path=/kafka/0.8.2-beta/kafka-0.8.2-beta-src.tgz
>
> Untar this build and here is what I see
>
> root@DO-mq-dev:/home/stuser/kafka-0.8.2-beta-src/bin#
> kafka-console-consumer.sh
> The console consumer is a tool that reads data from Kafka and outputs it to
> standard output.
> Option Description
> ------ -----------
> --blacklist <blacklist> Blacklist of topics to exclude from
> consumption.
> --consumer.config <config file> Consumer config properties file.
> --csv-reporter-enabled If set, the CSV metrics reporter
> will
> be enabled
> --delete-consumer-offsets If specified, the consumer path in
> zookeeper is deleted when
> starting up
> --formatter <class> The name of a class to use for
> formatting kafka messages for
> display. (default: kafka.tools.
> DefaultMessageFormatter)
> --from-beginning If the consumer does not already
> have
> an established offset to consume
> from, start with the earliest
> message present in the log rather
> than the latest message.
> --max-messages <Integer: num_messages> The maximum number of messages to
> consume before exiting. If not
> set,
> consumption is continual.
> --metrics-dir <metrics dictory> If csv-reporter-enable is set, and
> this parameter isset, the csv
> metrics will be outputed here
> --property <prop>
> --skip-message-on-error If there is an error when
> processing a
> message, skip it instead of halt.
> --topic <topic> The topic id to consume on.
> --whitelist <whitelist> Whitelist of topics to include for
> consumption.
> --zookeeper <urls> REQUIRED: The connection string for
> the zookeeper connection in the
> form
> host:port. Multiple URLS can be
> given to allow fail-over.
>
> Again, I am still not able to see description of --property, or I download
> the wrong version?
>
>
> thanks
>
> AL
>
>
> On Tue, Feb 3, 2015 at 4:29 PM, Guozhang Wang <wa...@gmail.com> wrote:
>
> > Hello Sa,
> >
> > Could you try the latest 0.8.2 release, whose console consumer tool has
> > been polished a bit with clearer properties?
> >
> > Guozhang
> >
> >
> > On Tue, Feb 3, 2015 at 10:32 AM, Sa Li <sa...@gmail.com> wrote:
> >
> > > GuoZhang
> > >
> > > Sorry for leaving this topic for a while, I am still not clear how to
> > > commit the offset to zk from commandline, I tried this
> > >
> > > bin/kafka-console-consumer.sh --zookeeper 10.100.71.33:2181 --topic
> > > pipe-test-2 --from-beginning --property pipe
> > >
> > > It seems generate a console-consumer-001 in zK, but when I did that to
> > > other topics, nothing in zk, (I can't read anything from consumer group
> > in
> > > kafka-web-console), see
> > > [zk: localhost:2181(CONNECTED) 2] ls
> > /consumers/web-console-consumer-38650
> > > [offsets, owners, ids]
> > > [zk: localhost:2181(CONNECTED) 3] ls
> > > /consumers/web-console-consumer-38650/offsets
> > > [PofApiTest-1]
> > > [zk: localhost:2181(CONNECTED) 4] ls
> > > /consumers/web-console-consumer-38650/offsets/PofApiTest-1
> > > [3, 2, 1, 0, 7, 6, 5, 4]
> > > [zk: localhost:2181(CONNECTED) 5] ls
> > > /consumers/web-console-consumer-38650/offsets/PofApiTest-1/3
> > > []
> > >
> > > Any ideas?
> > >
> > > thanks
> > >
> > > AL
> > >
> > >
> > > On Tue, Jan 20, 2015 at 9:57 PM, Guozhang Wang <wa...@gmail.com>
> > wrote:
> > >
> > > > It seems not the latest version of Kafka, which version are you
> using?
> > > >
> > > > On Tue, Jan 20, 2015 at 9:46 AM, Sa Li <sa...@gmail.com> wrote:
> > > >
> > > > > Guozhang
> > > > >
> > > > > Thank you very much for reply, here I print out the
> > > > > kafka-console-consumer.sh help,
> > > > >
> > > > > root@voluminous-mass:/srv/kafka# bin/kafka-console-consumer.sh
> > > > > Missing required argument "[zookeeper]"
> > > > > Option Description
> > > > > ------ -----------
> > > > > --autocommit.interval.ms <Integer: ms> The time interval at which
> > to
> > > > save
> > > > > the
> > > > > current offset in ms
> > > (default:
> > > > > 60000)
> > > > > --blacklist <blacklist> Blacklist of topics to
> > exclude
> > > > from
> > > > > consumption.
> > > > > --consumer-timeout-ms <Integer: prop> consumer throws timeout
> > > exception
> > > > > after waiting this much
> of
> > > time
> > > > > without incoming messages
> > > > > (default:
> > > > > -1)
> > > > > --csv-reporter-enabled If set, the CSV metrics
> > > reporter
> > > > > will
> > > > > be enabled
> > > > > --fetch-size <Integer: size> The amount of data to fetch
> > in
> > > a
> > > > > single request. (default:
> > > > > 1048576)
> > > > > --formatter <class> The name of a class to use
> > for
> > > > > formatting kafka messages
> > for
> > > > > display. (default:
> > > > > kafka.consumer.
> > > > > DefaultMessageFormatter)
> > > > > --from-beginning If the consumer does not
> > > already
> > > > > have
> > > > > an established offset to
> > > > consume
> > > > > from, start with the
> > earliest
> > > > > message present in the
> log
> > > > rather
> > > > > than the latest message.
> > > > > --group <gid> The group id to consume on.
> > > > > (default:
> > > > > console-consumer-85664)
> > > > > --max-messages <Integer: num_messages> The maximum number of
> > messages
> > > to
> > > > > consume before exiting.
> If
> > > not
> > > > > set,
> > > > > consumption is continual.
> > > > > --max-wait-ms <Integer: ms> The max amount of time each
> > > fetch
> > > > > request waits. (default:
> > 100)
> > > > > --metrics-dir <metrics dictory> If csv-reporter-enable is
> > set,
> > > > and
> > > > > this parameter isset, the
> > csv
> > > > > metrics will be outputed
> > here
> > > > > --min-fetch-bytes <Integer: bytes> The min number of bytes
> each
> > > > fetch
> > > > > request waits for.
> > (default:
> > > 1)
> > > > > --property <prop>
> > > > > --refresh-leader-backoff-ms <Integer: Backoff time before
> > refreshing
> > > > > ms> metadata (default: 200)
> > > > > --skip-message-on-error If there is an error when
> > > > > processing a
> > > > > message, skip it instead
> of
> > > > halt.
> > > > > --socket-buffer-size <Integer: size> The size of the tcp RECV
> > size.
> > > > > (default: 2097152)
> > > > > --socket-timeout-ms <Integer: ms> The socket timeout used for
> > the
> > > > > connection to the broker
> > > > > (default:
> > > > > 30000)
> > > > > --topic <topic> The topic id to consume on.
> > > > > --whitelist <whitelist> Whitelist of topics to
> > include
> > > > for
> > > > > consumption.
> > > > > --zookeeper <urls> REQUIRED: The connection
> > string
> > > > for
> > > > > the zookeeper connection
> in
> > > the
> > > > > form
> > > > > host:port. Multiple URLS
> > can
> > > be
> > > > > given to allow fail-over.
> > > > >
> > > > > --property option is not provided the description, is there an
> > example
> > > > how
> > > > > to use it?
> > > > >
> > > > > thanks
> > > > >
> > > > > AL
> > > > >
> > > > > On Mon, Jan 19, 2015 at 6:30 PM, Guozhang Wang <wangguoz@gmail.com
> >
> > > > wrote:
> > > > >
> > > > > > There is a property config you can set via
> > > > bin/kafka-console-consumer.sh
> > > > > to
> > > > > > commit offsets to ZK, you can use bin/kafka-console-consumer.sh
> > > --help
> > > > to
> > > > > > list all the properties.
> > > > > >
> > > > > > Guozhang
> > > > > >
> > > > > > On Mon, Jan 19, 2015 at 5:15 PM, Sa Li <sa...@gmail.com> wrote:
> > > > > >
> > > > > > > Guozhang,
> > > > > > >
> > > > > > > Currently we are in the stage to testing producer, our C#
> > producer
> > > > > > sending
> > > > > > > data to brokers, and use
> > > > > > >
> > > > > > > bin/kafka-run-class.sh
> > > > > org.apache.kafka.clients.tools.ProducerPerformance
> > > > > > > command to produce the messages. We don't have a coded consumer
> > to
> > > > > commit
> > > > > > > offset, we use
> > > > > > > bin/kafka-console-consumer.sh --zookeeper command to consume,
> is
> > > > there
> > > > > a
> > > > > > > command that we can use on command line to create zk path?
> > > > > > >
> > > > > > > thanks
> > > > > > >
> > > > > > > AL
> > > > > > >
> > > > > > > On Mon, Jan 19, 2015 at 4:14 PM, Guozhang Wang <
> > wangguoz@gmail.com
> > > >
> > > > > > wrote:
> > > > > > >
> > > > > > > > Sa,
> > > > > > > >
> > > > > > > > Did your consumer ever commit offsets to Kafka? If not then
> no
> > > > > > > > corresponding ZK path will be created.
> > > > > > > >
> > > > > > > > Guozhang
> > > > > > > >
> > > > > > > > On Mon, Jan 19, 2015 at 3:58 PM, Sa Li <sa...@gmail.com>
> > wrote:
> > > > > > > >
> > > > > > > > > Hi,
> > > > > > > > >
> > > > > > > > > I use such tool
> > > > > > > > >
> > > > > > > > > Consumer Offset Checker
> > > > > > > > >
> > > > > > > > > Displays the: Consumer Group, Topic, Partitions, Offset,
> > > > logSize,
> > > > > > Lag,
> > > > > > > > > Owner for the specified set of Topics and Consumer Group
> > > > > > > > > bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker
> > > > > > > > >
> > > > > > > > > To be able to know the consumer group, in zkCli.sh
> > > > > > > > >
> > > > > > > > > [zk: localhost:2181(CONNECTED) 3] ls /
> > > > > > > > > [transactional, admin, zookeeper, consumers, config,
> > > controller,
> > > > > > storm,
> > > > > > > > > brokers, controller_epoch]
> > > > > > > > > [zk: localhost:2181(CONNECTED) 4] ls /consumers
> > > > > > > > > [web-console-consumer-99295, web-console-consumer-37853,
> > > > > > > > > web-console-consumer-30841, perf-consumer-92283,
> > > > > perf-consumer-21631,
> > > > > > > > > perf-consumer-95281, perf-consumer-59296,
> > > > > web-console-consumer-52126,
> > > > > > > > > web-console-consumer-89137, perf-consumer-72484,
> > > > > perf-consumer-80363,
> > > > > > > > > web-console-consumer-47543, web-console-consumer-22509,
> > > > > > > > > perf-consumer-16954, perf-consumer-53957,
> > perf-consumer-39448,
> > > > > > > > > web-console-consumer-17021, perf-consumer-88693,
> > > > > > > > > web-console-consumer-48744, web-console-consumer-82543,
> > > > > > > > > perf-consumer-89565, web-console-consumer-97959,
> > > > > perf-consumer-40427,
> > > > > > > > > web-console-consumer-95350, web-console-consumer-26473,
> > > > > > > > > web-console-consumer-79384, web-console-consumer-87777,
> > > > > > > > > perf-consumer-91681, web-console-consumer-36136,
> > > > > > > > > web-console-consumer-86924, perf-consumer-24510,
> > > > > perf-consumer-5888,
> > > > > > > > > perf-consumer-73534, perf-consumer-92985,
> perf-consumer-7675,
> > > > > > > > > perf-consumer-52306, perf-consumer-87352,
> > > > > web-console-consumer-30400]
> > > > > > > > > [zk: localhost:2181(CONNECTED) 5]
> > > > > > > > >
> > > > > > > > > I then run
> > > > > > > > >
> > > > > > > > > root@exemplary-birds:/srv/kafka# bin/kafka-run-class.sh
> > > > > > > > > kafka.tools.ConsumerOffsetChecker --topic PofApiTest-1
> > --group
> > > > > > > > > web-console-consumer-48744
> > > > > > > > > Group Topic Pid Offset
> > > > > > > > > logSize Lag Owner
> > > > > > > > > Exception in thread "main"
> > > > > > > > org.I0Itec.zkclient.exception.ZkNoNodeException:
> > > > > > > > > org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > > KeeperErrorCode =
> > > > > > > > > NoNode for
> > > > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > > > at
> > > > > > > > >
> > > > >
> org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
> > > > > > > > > at
> > > > > > > > >
> > > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:685)
> > > > > > > > > at
> > > > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:766)
> > > > > > > > > at
> > > > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:761)
> > > > > > > > > at kafka.utils.ZkUtils$.readData(ZkUtils.scala:461)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processPartition(ConsumerOffsetChecker.scala:59)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply$mcVI$sp(ConsumerOffsetChecker.scala:89)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> > > > > > > > > at
> > > > > > > > >
> > > > scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processTopic(ConsumerOffsetChecker.scala:88)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > > > at
> > > > scala.collection.immutable.List.foreach(List.scala:318)
> > > > > > > > > at
> > > > > > > > >
> > > > > > >
> > > > >
> > >
> kafka.tools.ConsumerOffsetChecker$.main(ConsumerOffsetChecker.scala:152)
> > > > > > > > > at
> > > > > > > > >
> > > > kafka.tools.ConsumerOffsetChecker.main(ConsumerOffsetChecker.scala)
> > > > > > > > > Caused by:
> > > org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > > > > > KeeperErrorCode = NoNode for
> > > > > > > > >
> /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > > > at
> > > > > > > > >
> > > > >
> org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
> > > > > > > > > at
> > > > > > > > >
> > > > >
> org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> > > > > > > > > at
> > > > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927)
> > > > > > > > > at
> > > > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:956)
> > > > > > > > > at
> > > > > > > >
> > org.I0Itec.zkclient.ZkConnection.readData(ZkConnection.java:103)
> > > > > > > > > at
> > > org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:770)
> > > > > > > > > at
> > > org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:766)
> > > > > > > > > at
> > > > > > > > >
> > > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> > > > > > > > > ... 15 more
> > > > > > > > >
> > > > > > > > > So consumer groups make confusing, I didn't specify the
> > > > > > > consumer-group-id
> > > > > > > > > in producer, the only place I know to config group is
> > > > > > > consumer.properties
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > #consumer group id
> > > > > > > > > group.id=test-consumer-group
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Any hints? Thanks
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > AL
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On Mon, Dec 15, 2014 at 6:46 PM, nitin sharma <
> > > > > > > > kumarsharma.nitin@gmail.com
> > > > > > > > > >
> > > > > > > > > wrote:
> > > > > > > > >
> > > > > > > > > > got it ... thanks a lot.
> > > > > > > > > >
> > > > > > > > > > Regards,
> > > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > On Mon, Dec 15, 2014 at 9:26 PM, Gwen Shapira <
> > > > > > gshapira@cloudera.com
> > > > > > > >
> > > > > > > > > > wrote:
> > > > > > > > > > >
> > > > > > > > > > > Hi Nitin,
> > > > > > > > > > >
> > > > > > > > > > > Go to where you installed zookeeper and run:
> > > > > > > > > > >
> > > > > > > > > > > bin/zkCli.sh -server 127.0.0.1:2181
> > > > > > > > > > >
> > > > > > > > > > > On Mon, Dec 15, 2014 at 6:09 PM, nitin sharma
> > > > > > > > > > > <ku...@gmail.com> wrote:
> > > > > > > > > > > > Thanks Neha and Gwen for your responses..
> > > > > > > > > > > >
> > > > > > > > > > > > @Gwen -- Kindly explain how to perform the steps you
> > have
> > > > > > > > mentioned.
> > > > > > > > > > how
> > > > > > > > > > > > should i connect to a zookeeper..?
> > > > > > > > > > > >
> > > > > > > > > > > > Regards,
> > > > > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > > On Mon, Dec 15, 2014 at 6:36 PM, Neha Narkhede <
> > > > > > > neha@confluent.io>
> > > > > > > > > > > wrote:
> > > > > > > > > > > >>
> > > > > > > > > > > >> In addition to Gwen's suggestion, we actually don't
> > have
> > > > jmx
> > > > > > > > metrics
> > > > > > > > > > > that
> > > > > > > > > > > >> give you a list of actively consuming processes.
> > > > > > > > > > > >>
> > > > > > > > > > > >> On Mon, Dec 15, 2014 at 12:59 PM, Gwen Shapira <
> > > > > > > > > gshapira@cloudera.com
> > > > > > > > > > >
> > > > > > > > > > > >> wrote:
> > > > > > > > > > > >> >
> > > > > > > > > > > >> > Currently you can find the number of consumer
> groups
> > > > > through
> > > > > > > > > > > ZooKeeper:
> > > > > > > > > > > >> >
> > > > > > > > > > > >> > connect to ZK and run
> > > > > > > > > > > >> > ls /consumers
> > > > > > > > > > > >> >
> > > > > > > > > > > >> > and count the number of results
> > > > > > > > > > > >> >
> > > > > > > > > > > >> > On Mon, Dec 15, 2014 at 11:34 AM, nitin sharma
> > > > > > > > > > > >> > <ku...@gmail.com> wrote:
> > > > > > > > > > > >> > > Hi Team,
> > > > > > > > > > > >> > >
> > > > > > > > > > > >> > > Is it possible to know how many Consumer Group
> > > > connected
> > > > > > to
> > > > > > > > > kafka
> > > > > > > > > > > >> broker
> > > > > > > > > > > >> > Ids
> > > > > > > > > > > >> > > and as well as how many Instances within a Group
> > are
> > > > > > > fetching
> > > > > > > > > > > messages
> > > > > > > > > > > >> > from
> > > > > > > > > > > >> > > Kafka Brokers
> > > > > > > > > > > >> > >
> > > > > > > > > > > >> > > Regards,
> > > > > > > > > > > >> > > Nitin Kumar Sharma.
> > > > > > > > > > > >> >
> > > > > > > > > > > >>
> > > > > > > > > > > >>
> > > > > > > > > > > >> --
> > > > > > > > > > > >> Thanks,
> > > > > > > > > > > >> Neha
> > > > > > > > > > > >>
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > >
> > > > > > > > > Alec Li
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > --
> > > > > > > > -- Guozhang
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > >
> > > > > > > Alec Li
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > -- Guozhang
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > >
> > > > > Alec Li
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > -- Guozhang
> > > >
> > >
> > >
> > >
> > > --
> > >
> > > Alec Li
> > >
> >
> >
> >
> > --
> > -- Guozhang
> >
>
>
>
> --
>
> Alec Li
>
--
-- Guozhang
Re: Number of Consumers Connected
Posted by Sa Li <sa...@gmail.com>.
Hi, Guozhang
Thank you very much for the reply, as you mentioned, I download the latest
version
https://www.apache.org/dyn/closer.cgi?path=/kafka/0.8.2-beta/kafka-0.8.2-beta-src.tgz
Untar this build and here is what I see
root@DO-mq-dev:/home/stuser/kafka-0.8.2-beta-src/bin#
kafka-console-consumer.sh
The console consumer is a tool that reads data from Kafka and outputs it to
standard output.
Option Description
------ -----------
--blacklist <blacklist> Blacklist of topics to exclude from
consumption.
--consumer.config <config file> Consumer config properties file.
--csv-reporter-enabled If set, the CSV metrics reporter
will
be enabled
--delete-consumer-offsets If specified, the consumer path in
zookeeper is deleted when
starting up
--formatter <class> The name of a class to use for
formatting kafka messages for
display. (default: kafka.tools.
DefaultMessageFormatter)
--from-beginning If the consumer does not already
have
an established offset to consume
from, start with the earliest
message present in the log rather
than the latest message.
--max-messages <Integer: num_messages> The maximum number of messages to
consume before exiting. If not
set,
consumption is continual.
--metrics-dir <metrics dictory> If csv-reporter-enable is set, and
this parameter isset, the csv
metrics will be outputed here
--property <prop>
--skip-message-on-error If there is an error when
processing a
message, skip it instead of halt.
--topic <topic> The topic id to consume on.
--whitelist <whitelist> Whitelist of topics to include for
consumption.
--zookeeper <urls> REQUIRED: The connection string for
the zookeeper connection in the
form
host:port. Multiple URLS can be
given to allow fail-over.
Again, I am still not able to see description of --property, or I download
the wrong version?
thanks
AL
On Tue, Feb 3, 2015 at 4:29 PM, Guozhang Wang <wa...@gmail.com> wrote:
> Hello Sa,
>
> Could you try the latest 0.8.2 release, whose console consumer tool has
> been polished a bit with clearer properties?
>
> Guozhang
>
>
> On Tue, Feb 3, 2015 at 10:32 AM, Sa Li <sa...@gmail.com> wrote:
>
> > GuoZhang
> >
> > Sorry for leaving this topic for a while, I am still not clear how to
> > commit the offset to zk from commandline, I tried this
> >
> > bin/kafka-console-consumer.sh --zookeeper 10.100.71.33:2181 --topic
> > pipe-test-2 --from-beginning --property pipe
> >
> > It seems generate a console-consumer-001 in zK, but when I did that to
> > other topics, nothing in zk, (I can't read anything from consumer group
> in
> > kafka-web-console), see
> > [zk: localhost:2181(CONNECTED) 2] ls
> /consumers/web-console-consumer-38650
> > [offsets, owners, ids]
> > [zk: localhost:2181(CONNECTED) 3] ls
> > /consumers/web-console-consumer-38650/offsets
> > [PofApiTest-1]
> > [zk: localhost:2181(CONNECTED) 4] ls
> > /consumers/web-console-consumer-38650/offsets/PofApiTest-1
> > [3, 2, 1, 0, 7, 6, 5, 4]
> > [zk: localhost:2181(CONNECTED) 5] ls
> > /consumers/web-console-consumer-38650/offsets/PofApiTest-1/3
> > []
> >
> > Any ideas?
> >
> > thanks
> >
> > AL
> >
> >
> > On Tue, Jan 20, 2015 at 9:57 PM, Guozhang Wang <wa...@gmail.com>
> wrote:
> >
> > > It seems not the latest version of Kafka, which version are you using?
> > >
> > > On Tue, Jan 20, 2015 at 9:46 AM, Sa Li <sa...@gmail.com> wrote:
> > >
> > > > Guozhang
> > > >
> > > > Thank you very much for reply, here I print out the
> > > > kafka-console-consumer.sh help,
> > > >
> > > > root@voluminous-mass:/srv/kafka# bin/kafka-console-consumer.sh
> > > > Missing required argument "[zookeeper]"
> > > > Option Description
> > > > ------ -----------
> > > > --autocommit.interval.ms <Integer: ms> The time interval at which
> to
> > > save
> > > > the
> > > > current offset in ms
> > (default:
> > > > 60000)
> > > > --blacklist <blacklist> Blacklist of topics to
> exclude
> > > from
> > > > consumption.
> > > > --consumer-timeout-ms <Integer: prop> consumer throws timeout
> > exception
> > > > after waiting this much of
> > time
> > > > without incoming messages
> > > > (default:
> > > > -1)
> > > > --csv-reporter-enabled If set, the CSV metrics
> > reporter
> > > > will
> > > > be enabled
> > > > --fetch-size <Integer: size> The amount of data to fetch
> in
> > a
> > > > single request. (default:
> > > > 1048576)
> > > > --formatter <class> The name of a class to use
> for
> > > > formatting kafka messages
> for
> > > > display. (default:
> > > > kafka.consumer.
> > > > DefaultMessageFormatter)
> > > > --from-beginning If the consumer does not
> > already
> > > > have
> > > > an established offset to
> > > consume
> > > > from, start with the
> earliest
> > > > message present in the log
> > > rather
> > > > than the latest message.
> > > > --group <gid> The group id to consume on.
> > > > (default:
> > > > console-consumer-85664)
> > > > --max-messages <Integer: num_messages> The maximum number of
> messages
> > to
> > > > consume before exiting. If
> > not
> > > > set,
> > > > consumption is continual.
> > > > --max-wait-ms <Integer: ms> The max amount of time each
> > fetch
> > > > request waits. (default:
> 100)
> > > > --metrics-dir <metrics dictory> If csv-reporter-enable is
> set,
> > > and
> > > > this parameter isset, the
> csv
> > > > metrics will be outputed
> here
> > > > --min-fetch-bytes <Integer: bytes> The min number of bytes each
> > > fetch
> > > > request waits for.
> (default:
> > 1)
> > > > --property <prop>
> > > > --refresh-leader-backoff-ms <Integer: Backoff time before
> refreshing
> > > > ms> metadata (default: 200)
> > > > --skip-message-on-error If there is an error when
> > > > processing a
> > > > message, skip it instead of
> > > halt.
> > > > --socket-buffer-size <Integer: size> The size of the tcp RECV
> size.
> > > > (default: 2097152)
> > > > --socket-timeout-ms <Integer: ms> The socket timeout used for
> the
> > > > connection to the broker
> > > > (default:
> > > > 30000)
> > > > --topic <topic> The topic id to consume on.
> > > > --whitelist <whitelist> Whitelist of topics to
> include
> > > for
> > > > consumption.
> > > > --zookeeper <urls> REQUIRED: The connection
> string
> > > for
> > > > the zookeeper connection in
> > the
> > > > form
> > > > host:port. Multiple URLS
> can
> > be
> > > > given to allow fail-over.
> > > >
> > > > --property option is not provided the description, is there an
> example
> > > how
> > > > to use it?
> > > >
> > > > thanks
> > > >
> > > > AL
> > > >
> > > > On Mon, Jan 19, 2015 at 6:30 PM, Guozhang Wang <wa...@gmail.com>
> > > wrote:
> > > >
> > > > > There is a property config you can set via
> > > bin/kafka-console-consumer.sh
> > > > to
> > > > > commit offsets to ZK, you can use bin/kafka-console-consumer.sh
> > --help
> > > to
> > > > > list all the properties.
> > > > >
> > > > > Guozhang
> > > > >
> > > > > On Mon, Jan 19, 2015 at 5:15 PM, Sa Li <sa...@gmail.com> wrote:
> > > > >
> > > > > > Guozhang,
> > > > > >
> > > > > > Currently we are in the stage to testing producer, our C#
> producer
> > > > > sending
> > > > > > data to brokers, and use
> > > > > >
> > > > > > bin/kafka-run-class.sh
> > > > org.apache.kafka.clients.tools.ProducerPerformance
> > > > > > command to produce the messages. We don't have a coded consumer
> to
> > > > commit
> > > > > > offset, we use
> > > > > > bin/kafka-console-consumer.sh --zookeeper command to consume, is
> > > there
> > > > a
> > > > > > command that we can use on command line to create zk path?
> > > > > >
> > > > > > thanks
> > > > > >
> > > > > > AL
> > > > > >
> > > > > > On Mon, Jan 19, 2015 at 4:14 PM, Guozhang Wang <
> wangguoz@gmail.com
> > >
> > > > > wrote:
> > > > > >
> > > > > > > Sa,
> > > > > > >
> > > > > > > Did your consumer ever commit offsets to Kafka? If not then no
> > > > > > > corresponding ZK path will be created.
> > > > > > >
> > > > > > > Guozhang
> > > > > > >
> > > > > > > On Mon, Jan 19, 2015 at 3:58 PM, Sa Li <sa...@gmail.com>
> wrote:
> > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > I use such tool
> > > > > > > >
> > > > > > > > Consumer Offset Checker
> > > > > > > >
> > > > > > > > Displays the: Consumer Group, Topic, Partitions, Offset,
> > > logSize,
> > > > > Lag,
> > > > > > > > Owner for the specified set of Topics and Consumer Group
> > > > > > > > bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker
> > > > > > > >
> > > > > > > > To be able to know the consumer group, in zkCli.sh
> > > > > > > >
> > > > > > > > [zk: localhost:2181(CONNECTED) 3] ls /
> > > > > > > > [transactional, admin, zookeeper, consumers, config,
> > controller,
> > > > > storm,
> > > > > > > > brokers, controller_epoch]
> > > > > > > > [zk: localhost:2181(CONNECTED) 4] ls /consumers
> > > > > > > > [web-console-consumer-99295, web-console-consumer-37853,
> > > > > > > > web-console-consumer-30841, perf-consumer-92283,
> > > > perf-consumer-21631,
> > > > > > > > perf-consumer-95281, perf-consumer-59296,
> > > > web-console-consumer-52126,
> > > > > > > > web-console-consumer-89137, perf-consumer-72484,
> > > > perf-consumer-80363,
> > > > > > > > web-console-consumer-47543, web-console-consumer-22509,
> > > > > > > > perf-consumer-16954, perf-consumer-53957,
> perf-consumer-39448,
> > > > > > > > web-console-consumer-17021, perf-consumer-88693,
> > > > > > > > web-console-consumer-48744, web-console-consumer-82543,
> > > > > > > > perf-consumer-89565, web-console-consumer-97959,
> > > > perf-consumer-40427,
> > > > > > > > web-console-consumer-95350, web-console-consumer-26473,
> > > > > > > > web-console-consumer-79384, web-console-consumer-87777,
> > > > > > > > perf-consumer-91681, web-console-consumer-36136,
> > > > > > > > web-console-consumer-86924, perf-consumer-24510,
> > > > perf-consumer-5888,
> > > > > > > > perf-consumer-73534, perf-consumer-92985, perf-consumer-7675,
> > > > > > > > perf-consumer-52306, perf-consumer-87352,
> > > > web-console-consumer-30400]
> > > > > > > > [zk: localhost:2181(CONNECTED) 5]
> > > > > > > >
> > > > > > > > I then run
> > > > > > > >
> > > > > > > > root@exemplary-birds:/srv/kafka# bin/kafka-run-class.sh
> > > > > > > > kafka.tools.ConsumerOffsetChecker --topic PofApiTest-1
> --group
> > > > > > > > web-console-consumer-48744
> > > > > > > > Group Topic Pid Offset
> > > > > > > > logSize Lag Owner
> > > > > > > > Exception in thread "main"
> > > > > > > org.I0Itec.zkclient.exception.ZkNoNodeException:
> > > > > > > > org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > KeeperErrorCode =
> > > > > > > > NoNode for
> > > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > > at
> > > > > > > >
> > > > org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
> > > > > > > > at
> > > > > > > >
> > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:685)
> > > > > > > > at
> > > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:766)
> > > > > > > > at
> > > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:761)
> > > > > > > > at kafka.utils.ZkUtils$.readData(ZkUtils.scala:461)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processPartition(ConsumerOffsetChecker.scala:59)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply$mcVI$sp(ConsumerOffsetChecker.scala:89)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> > > > > > > > at
> > > > > > > >
> > > scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processTopic(ConsumerOffsetChecker.scala:88)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > > at
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > > at
> > > scala.collection.immutable.List.foreach(List.scala:318)
> > > > > > > > at
> > > > > > > >
> > > > > >
> > > >
> > kafka.tools.ConsumerOffsetChecker$.main(ConsumerOffsetChecker.scala:152)
> > > > > > > > at
> > > > > > > >
> > > kafka.tools.ConsumerOffsetChecker.main(ConsumerOffsetChecker.scala)
> > > > > > > > Caused by:
> > org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > > > > KeeperErrorCode = NoNode for
> > > > > > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > > at
> > > > > > > >
> > > > org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
> > > > > > > > at
> > > > > > > >
> > > > org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> > > > > > > > at
> > > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927)
> > > > > > > > at
> > > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:956)
> > > > > > > > at
> > > > > > >
> org.I0Itec.zkclient.ZkConnection.readData(ZkConnection.java:103)
> > > > > > > > at
> > org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:770)
> > > > > > > > at
> > org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:766)
> > > > > > > > at
> > > > > > > >
> > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> > > > > > > > ... 15 more
> > > > > > > >
> > > > > > > > So consumer groups make confusing, I didn't specify the
> > > > > > consumer-group-id
> > > > > > > > in producer, the only place I know to config group is
> > > > > > consumer.properties
> > > > > > > >
> > > > > > > >
> > > > > > > > #consumer group id
> > > > > > > > group.id=test-consumer-group
> > > > > > > >
> > > > > > > >
> > > > > > > > Any hints? Thanks
> > > > > > > >
> > > > > > > >
> > > > > > > > AL
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > On Mon, Dec 15, 2014 at 6:46 PM, nitin sharma <
> > > > > > > kumarsharma.nitin@gmail.com
> > > > > > > > >
> > > > > > > > wrote:
> > > > > > > >
> > > > > > > > > got it ... thanks a lot.
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On Mon, Dec 15, 2014 at 9:26 PM, Gwen Shapira <
> > > > > gshapira@cloudera.com
> > > > > > >
> > > > > > > > > wrote:
> > > > > > > > > >
> > > > > > > > > > Hi Nitin,
> > > > > > > > > >
> > > > > > > > > > Go to where you installed zookeeper and run:
> > > > > > > > > >
> > > > > > > > > > bin/zkCli.sh -server 127.0.0.1:2181
> > > > > > > > > >
> > > > > > > > > > On Mon, Dec 15, 2014 at 6:09 PM, nitin sharma
> > > > > > > > > > <ku...@gmail.com> wrote:
> > > > > > > > > > > Thanks Neha and Gwen for your responses..
> > > > > > > > > > >
> > > > > > > > > > > @Gwen -- Kindly explain how to perform the steps you
> have
> > > > > > > mentioned.
> > > > > > > > > how
> > > > > > > > > > > should i connect to a zookeeper..?
> > > > > > > > > > >
> > > > > > > > > > > Regards,
> > > > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > On Mon, Dec 15, 2014 at 6:36 PM, Neha Narkhede <
> > > > > > neha@confluent.io>
> > > > > > > > > > wrote:
> > > > > > > > > > >>
> > > > > > > > > > >> In addition to Gwen's suggestion, we actually don't
> have
> > > jmx
> > > > > > > metrics
> > > > > > > > > > that
> > > > > > > > > > >> give you a list of actively consuming processes.
> > > > > > > > > > >>
> > > > > > > > > > >> On Mon, Dec 15, 2014 at 12:59 PM, Gwen Shapira <
> > > > > > > > gshapira@cloudera.com
> > > > > > > > > >
> > > > > > > > > > >> wrote:
> > > > > > > > > > >> >
> > > > > > > > > > >> > Currently you can find the number of consumer groups
> > > > through
> > > > > > > > > > ZooKeeper:
> > > > > > > > > > >> >
> > > > > > > > > > >> > connect to ZK and run
> > > > > > > > > > >> > ls /consumers
> > > > > > > > > > >> >
> > > > > > > > > > >> > and count the number of results
> > > > > > > > > > >> >
> > > > > > > > > > >> > On Mon, Dec 15, 2014 at 11:34 AM, nitin sharma
> > > > > > > > > > >> > <ku...@gmail.com> wrote:
> > > > > > > > > > >> > > Hi Team,
> > > > > > > > > > >> > >
> > > > > > > > > > >> > > Is it possible to know how many Consumer Group
> > > connected
> > > > > to
> > > > > > > > kafka
> > > > > > > > > > >> broker
> > > > > > > > > > >> > Ids
> > > > > > > > > > >> > > and as well as how many Instances within a Group
> are
> > > > > > fetching
> > > > > > > > > > messages
> > > > > > > > > > >> > from
> > > > > > > > > > >> > > Kafka Brokers
> > > > > > > > > > >> > >
> > > > > > > > > > >> > > Regards,
> > > > > > > > > > >> > > Nitin Kumar Sharma.
> > > > > > > > > > >> >
> > > > > > > > > > >>
> > > > > > > > > > >>
> > > > > > > > > > >> --
> > > > > > > > > > >> Thanks,
> > > > > > > > > > >> Neha
> > > > > > > > > > >>
> > > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > --
> > > > > > > >
> > > > > > > > Alec Li
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > -- Guozhang
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > >
> > > > > > Alec Li
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > -- Guozhang
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > >
> > > > Alec Li
> > > >
> > >
> > >
> > >
> > > --
> > > -- Guozhang
> > >
> >
> >
> >
> > --
> >
> > Alec Li
> >
>
>
>
> --
> -- Guozhang
>
--
Alec Li
Re: Number of Consumers Connected
Posted by Guozhang Wang <wa...@gmail.com>.
Hello Sa,
Could you try the latest 0.8.2 release, whose console consumer tool has
been polished a bit with clearer properties?
Guozhang
On Tue, Feb 3, 2015 at 10:32 AM, Sa Li <sa...@gmail.com> wrote:
> GuoZhang
>
> Sorry for leaving this topic for a while, I am still not clear how to
> commit the offset to zk from commandline, I tried this
>
> bin/kafka-console-consumer.sh --zookeeper 10.100.71.33:2181 --topic
> pipe-test-2 --from-beginning --property pipe
>
> It seems generate a console-consumer-001 in zK, but when I did that to
> other topics, nothing in zk, (I can't read anything from consumer group in
> kafka-web-console), see
> [zk: localhost:2181(CONNECTED) 2] ls /consumers/web-console-consumer-38650
> [offsets, owners, ids]
> [zk: localhost:2181(CONNECTED) 3] ls
> /consumers/web-console-consumer-38650/offsets
> [PofApiTest-1]
> [zk: localhost:2181(CONNECTED) 4] ls
> /consumers/web-console-consumer-38650/offsets/PofApiTest-1
> [3, 2, 1, 0, 7, 6, 5, 4]
> [zk: localhost:2181(CONNECTED) 5] ls
> /consumers/web-console-consumer-38650/offsets/PofApiTest-1/3
> []
>
> Any ideas?
>
> thanks
>
> AL
>
>
> On Tue, Jan 20, 2015 at 9:57 PM, Guozhang Wang <wa...@gmail.com> wrote:
>
> > It seems not the latest version of Kafka, which version are you using?
> >
> > On Tue, Jan 20, 2015 at 9:46 AM, Sa Li <sa...@gmail.com> wrote:
> >
> > > Guozhang
> > >
> > > Thank you very much for reply, here I print out the
> > > kafka-console-consumer.sh help,
> > >
> > > root@voluminous-mass:/srv/kafka# bin/kafka-console-consumer.sh
> > > Missing required argument "[zookeeper]"
> > > Option Description
> > > ------ -----------
> > > --autocommit.interval.ms <Integer: ms> The time interval at which to
> > save
> > > the
> > > current offset in ms
> (default:
> > > 60000)
> > > --blacklist <blacklist> Blacklist of topics to exclude
> > from
> > > consumption.
> > > --consumer-timeout-ms <Integer: prop> consumer throws timeout
> exception
> > > after waiting this much of
> time
> > > without incoming messages
> > > (default:
> > > -1)
> > > --csv-reporter-enabled If set, the CSV metrics
> reporter
> > > will
> > > be enabled
> > > --fetch-size <Integer: size> The amount of data to fetch in
> a
> > > single request. (default:
> > > 1048576)
> > > --formatter <class> The name of a class to use for
> > > formatting kafka messages for
> > > display. (default:
> > > kafka.consumer.
> > > DefaultMessageFormatter)
> > > --from-beginning If the consumer does not
> already
> > > have
> > > an established offset to
> > consume
> > > from, start with the earliest
> > > message present in the log
> > rather
> > > than the latest message.
> > > --group <gid> The group id to consume on.
> > > (default:
> > > console-consumer-85664)
> > > --max-messages <Integer: num_messages> The maximum number of messages
> to
> > > consume before exiting. If
> not
> > > set,
> > > consumption is continual.
> > > --max-wait-ms <Integer: ms> The max amount of time each
> fetch
> > > request waits. (default: 100)
> > > --metrics-dir <metrics dictory> If csv-reporter-enable is set,
> > and
> > > this parameter isset, the csv
> > > metrics will be outputed here
> > > --min-fetch-bytes <Integer: bytes> The min number of bytes each
> > fetch
> > > request waits for. (default:
> 1)
> > > --property <prop>
> > > --refresh-leader-backoff-ms <Integer: Backoff time before refreshing
> > > ms> metadata (default: 200)
> > > --skip-message-on-error If there is an error when
> > > processing a
> > > message, skip it instead of
> > halt.
> > > --socket-buffer-size <Integer: size> The size of the tcp RECV size.
> > > (default: 2097152)
> > > --socket-timeout-ms <Integer: ms> The socket timeout used for the
> > > connection to the broker
> > > (default:
> > > 30000)
> > > --topic <topic> The topic id to consume on.
> > > --whitelist <whitelist> Whitelist of topics to include
> > for
> > > consumption.
> > > --zookeeper <urls> REQUIRED: The connection string
> > for
> > > the zookeeper connection in
> the
> > > form
> > > host:port. Multiple URLS can
> be
> > > given to allow fail-over.
> > >
> > > --property option is not provided the description, is there an example
> > how
> > > to use it?
> > >
> > > thanks
> > >
> > > AL
> > >
> > > On Mon, Jan 19, 2015 at 6:30 PM, Guozhang Wang <wa...@gmail.com>
> > wrote:
> > >
> > > > There is a property config you can set via
> > bin/kafka-console-consumer.sh
> > > to
> > > > commit offsets to ZK, you can use bin/kafka-console-consumer.sh
> --help
> > to
> > > > list all the properties.
> > > >
> > > > Guozhang
> > > >
> > > > On Mon, Jan 19, 2015 at 5:15 PM, Sa Li <sa...@gmail.com> wrote:
> > > >
> > > > > Guozhang,
> > > > >
> > > > > Currently we are in the stage to testing producer, our C# producer
> > > > sending
> > > > > data to brokers, and use
> > > > >
> > > > > bin/kafka-run-class.sh
> > > org.apache.kafka.clients.tools.ProducerPerformance
> > > > > command to produce the messages. We don't have a coded consumer to
> > > commit
> > > > > offset, we use
> > > > > bin/kafka-console-consumer.sh --zookeeper command to consume, is
> > there
> > > a
> > > > > command that we can use on command line to create zk path?
> > > > >
> > > > > thanks
> > > > >
> > > > > AL
> > > > >
> > > > > On Mon, Jan 19, 2015 at 4:14 PM, Guozhang Wang <wangguoz@gmail.com
> >
> > > > wrote:
> > > > >
> > > > > > Sa,
> > > > > >
> > > > > > Did your consumer ever commit offsets to Kafka? If not then no
> > > > > > corresponding ZK path will be created.
> > > > > >
> > > > > > Guozhang
> > > > > >
> > > > > > On Mon, Jan 19, 2015 at 3:58 PM, Sa Li <sa...@gmail.com> wrote:
> > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > I use such tool
> > > > > > >
> > > > > > > Consumer Offset Checker
> > > > > > >
> > > > > > > Displays the: Consumer Group, Topic, Partitions, Offset,
> > logSize,
> > > > Lag,
> > > > > > > Owner for the specified set of Topics and Consumer Group
> > > > > > > bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker
> > > > > > >
> > > > > > > To be able to know the consumer group, in zkCli.sh
> > > > > > >
> > > > > > > [zk: localhost:2181(CONNECTED) 3] ls /
> > > > > > > [transactional, admin, zookeeper, consumers, config,
> controller,
> > > > storm,
> > > > > > > brokers, controller_epoch]
> > > > > > > [zk: localhost:2181(CONNECTED) 4] ls /consumers
> > > > > > > [web-console-consumer-99295, web-console-consumer-37853,
> > > > > > > web-console-consumer-30841, perf-consumer-92283,
> > > perf-consumer-21631,
> > > > > > > perf-consumer-95281, perf-consumer-59296,
> > > web-console-consumer-52126,
> > > > > > > web-console-consumer-89137, perf-consumer-72484,
> > > perf-consumer-80363,
> > > > > > > web-console-consumer-47543, web-console-consumer-22509,
> > > > > > > perf-consumer-16954, perf-consumer-53957, perf-consumer-39448,
> > > > > > > web-console-consumer-17021, perf-consumer-88693,
> > > > > > > web-console-consumer-48744, web-console-consumer-82543,
> > > > > > > perf-consumer-89565, web-console-consumer-97959,
> > > perf-consumer-40427,
> > > > > > > web-console-consumer-95350, web-console-consumer-26473,
> > > > > > > web-console-consumer-79384, web-console-consumer-87777,
> > > > > > > perf-consumer-91681, web-console-consumer-36136,
> > > > > > > web-console-consumer-86924, perf-consumer-24510,
> > > perf-consumer-5888,
> > > > > > > perf-consumer-73534, perf-consumer-92985, perf-consumer-7675,
> > > > > > > perf-consumer-52306, perf-consumer-87352,
> > > web-console-consumer-30400]
> > > > > > > [zk: localhost:2181(CONNECTED) 5]
> > > > > > >
> > > > > > > I then run
> > > > > > >
> > > > > > > root@exemplary-birds:/srv/kafka# bin/kafka-run-class.sh
> > > > > > > kafka.tools.ConsumerOffsetChecker --topic PofApiTest-1 --group
> > > > > > > web-console-consumer-48744
> > > > > > > Group Topic Pid Offset
> > > > > > > logSize Lag Owner
> > > > > > > Exception in thread "main"
> > > > > > org.I0Itec.zkclient.exception.ZkNoNodeException:
> > > > > > > org.apache.zookeeper.KeeperException$NoNodeException:
> > > > KeeperErrorCode =
> > > > > > > NoNode for
> > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > at
> > > > > > >
> > > org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
> > > > > > > at
> > > > > > >
> > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:685)
> > > > > > > at
> > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:766)
> > > > > > > at
> > org.I0Itec.zkclient.ZkClient.readData(ZkClient.java:761)
> > > > > > > at kafka.utils.ZkUtils$.readData(ZkUtils.scala:461)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processPartition(ConsumerOffsetChecker.scala:59)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply$mcVI$sp(ConsumerOffsetChecker.scala:89)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$kafka$tools$ConsumerOffsetChecker$$processTopic$1.apply(ConsumerOffsetChecker.scala:89)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> > > > > > > at
> > > > > > >
> > scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$.kafka$tools$ConsumerOffsetChecker$$processTopic(ConsumerOffsetChecker.scala:88)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > at
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> kafka.tools.ConsumerOffsetChecker$$anonfun$main$3.apply(ConsumerOffsetChecker.scala:153)
> > > > > > > at
> > scala.collection.immutable.List.foreach(List.scala:318)
> > > > > > > at
> > > > > > >
> > > > >
> > >
> kafka.tools.ConsumerOffsetChecker$.main(ConsumerOffsetChecker.scala:152)
> > > > > > > at
> > > > > > >
> > kafka.tools.ConsumerOffsetChecker.main(ConsumerOffsetChecker.scala)
> > > > > > > Caused by:
> org.apache.zookeeper.KeeperException$NoNodeException:
> > > > > > > KeeperErrorCode = NoNode for
> > > > > > > /consumers/web-console-consumer-48744/offsets/PofApiTest-1/0
> > > > > > > at
> > > > > > >
> > > org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
> > > > > > > at
> > > > > > >
> > > org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> > > > > > > at
> > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927)
> > > > > > > at
> > > org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:956)
> > > > > > > at
> > > > > > org.I0Itec.zkclient.ZkConnection.readData(ZkConnection.java:103)
> > > > > > > at
> org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:770)
> > > > > > > at
> org.I0Itec.zkclient.ZkClient$9.call(ZkClient.java:766)
> > > > > > > at
> > > > > > >
> > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> > > > > > > ... 15 more
> > > > > > >
> > > > > > > So consumer groups make confusing, I didn't specify the
> > > > > consumer-group-id
> > > > > > > in producer, the only place I know to config group is
> > > > > consumer.properties
> > > > > > >
> > > > > > >
> > > > > > > #consumer group id
> > > > > > > group.id=test-consumer-group
> > > > > > >
> > > > > > >
> > > > > > > Any hints? Thanks
> > > > > > >
> > > > > > >
> > > > > > > AL
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > On Mon, Dec 15, 2014 at 6:46 PM, nitin sharma <
> > > > > > kumarsharma.nitin@gmail.com
> > > > > > > >
> > > > > > > wrote:
> > > > > > >
> > > > > > > > got it ... thanks a lot.
> > > > > > > >
> > > > > > > > Regards,
> > > > > > > > Nitin Kumar Sharma.
> > > > > > > >
> > > > > > > >
> > > > > > > > On Mon, Dec 15, 2014 at 9:26 PM, Gwen Shapira <
> > > > gshapira@cloudera.com
> > > > > >
> > > > > > > > wrote:
> > > > > > > > >
> > > > > > > > > Hi Nitin,
> > > > > > > > >
> > > > > > > > > Go to where you installed zookeeper and run:
> > > > > > > > >
> > > > > > > > > bin/zkCli.sh -server 127.0.0.1:2181
> > > > > > > > >
> > > > > > > > > On Mon, Dec 15, 2014 at 6:09 PM, nitin sharma
> > > > > > > > > <ku...@gmail.com> wrote:
> > > > > > > > > > Thanks Neha and Gwen for your responses..
> > > > > > > > > >
> > > > > > > > > > @Gwen -- Kindly explain how to perform the steps you have
> > > > > > mentioned.
> > > > > > > > how
> > > > > > > > > > should i connect to a zookeeper..?
> > > > > > > > > >
> > > > > > > > > > Regards,
> > > > > > > > > > Nitin Kumar Sharma.
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > On Mon, Dec 15, 2014 at 6:36 PM, Neha Narkhede <
> > > > > neha@confluent.io>
> > > > > > > > > wrote:
> > > > > > > > > >>
> > > > > > > > > >> In addition to Gwen's suggestion, we actually don't have
> > jmx
> > > > > > metrics
> > > > > > > > > that
> > > > > > > > > >> give you a list of actively consuming processes.
> > > > > > > > > >>
> > > > > > > > > >> On Mon, Dec 15, 2014 at 12:59 PM, Gwen Shapira <
> > > > > > > gshapira@cloudera.com
> > > > > > > > >
> > > > > > > > > >> wrote:
> > > > > > > > > >> >
> > > > > > > > > >> > Currently you can find the number of consumer groups
> > > through
> > > > > > > > > ZooKeeper:
> > > > > > > > > >> >
> > > > > > > > > >> > connect to ZK and run
> > > > > > > > > >> > ls /consumers
> > > > > > > > > >> >
> > > > > > > > > >> > and count the number of results
> > > > > > > > > >> >
> > > > > > > > > >> > On Mon, Dec 15, 2014 at 11:34 AM, nitin sharma
> > > > > > > > > >> > <ku...@gmail.com> wrote:
> > > > > > > > > >> > > Hi Team,
> > > > > > > > > >> > >
> > > > > > > > > >> > > Is it possible to know how many Consumer Group
> > connected
> > > > to
> > > > > > > kafka
> > > > > > > > > >> broker
> > > > > > > > > >> > Ids
> > > > > > > > > >> > > and as well as how many Instances within a Group are
> > > > > fetching
> > > > > > > > > messages
> > > > > > > > > >> > from
> > > > > > > > > >> > > Kafka Brokers
> > > > > > > > > >> > >
> > > > > > > > > >> > > Regards,
> > > > > > > > > >> > > Nitin Kumar Sharma.
> > > > > > > > > >> >
> > > > > > > > > >>
> > > > > > > > > >>
> > > > > > > > > >> --
> > > > > > > > > >> Thanks,
> > > > > > > > > >> Neha
> > > > > > > > > >>
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > >
> > > > > > > Alec Li
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > -- Guozhang
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > >
> > > > > Alec Li
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > -- Guozhang
> > > >
> > >
> > >
> > >
> > > --
> > >
> > > Alec Li
> > >
> >
> >
> >
> > --
> > -- Guozhang
> >
>
>
>
> --
>
> Alec Li
>
--
-- Guozhang