Enrico,
I dint quite get it. Can you please elaborate?
- Shekar
On Sun, Jun 26, 2016 at 12:06 AM, Enrico Olivelli <eolive...@gmail.com>
wrote:
> Hi,
> I think you should call 'get' on the Future returned by 'send' or issue a
> producer.flush.
> Producer.send is async
>
> Enrico
>
> Il Dom 26 Giu 2016 07:07 Shekar Tippur <ctip...@gmail.com> ha scritto:
>
> > Another observation ..
> >
> > The below code produces. Cant understand this randomness :/
> >
> > 2 xyz
> >
> > 3 xyz
> >
> > 3 xyz
> >
> > 3 xyz
> >
> > 3 xyz
> >
> > 4 xyz
> >
> > 4 xyz
> >
> > 4 xyz
> >
> > 4 xyz
> >
> >
> >
> > for(int i = 0; i < 5; i++) {
> > producer.send(new ProducerRecord<String, String>("test",
> > Integer.toString(i), "xyz"));
> > producer.send(new ProducerRecord<String, String>("test",
> > Integer.toString(i),"xyz"));
> > producer.send(new ProducerRecord<String, String>("test",
> > Integer.toString(i),"xyz"));
> > producer.send(new ProducerRecord<String, String>("test",
> > Integer.toString(i),"xyz"));
> > }
> >
> >
> > On Sat, Jun 25, 2016 at 10:20 AM, Shekar Tippur <ctip...@gmail.com>
> wrote:
> >
> > > Any updates on this issue please? As suggested, I tried adding a
> > > microsleep between consecutive producer.send () And random messages got
> > > into the topic.(not all messages got into the topic) I am blocked on
> > this
> > > issue. Appreciate if someone could help me out on this.
> > >
> > > Sent from my iPhone
> > >
> > > On Jun 24, 2016, at 13:49, Shekar Tippur <ctip...@gmail.com> wrote:
> > >
> > > Intersting. So if we introduce a sleep after the first send then it
> > > produces properly?
> > >
> > > Here is my log. Clearly there is a conn reset.
> > >
> > > [2016-06-24 13:42:48,620] ERROR Closing socket for /127.0.0.1 because
> of
> > > error (kafka.network.Processor)
> > >
> > > java.io.IOException: Connection reset by peer
> > >
> > > at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
> > >
> > > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
> > >
> > > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
> > >
> > > at sun.nio.ch.IOUtil.read(IOUtil.java:197)
> > >
> > > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
> > >
> > > at kafka.utils.Utils$.read(Utils.scala:380)
> > >
> > > at
> > >
> >
> kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54)
> > >
> > > at kafka.network.Processor.read(SocketServer.scala:444)
> > >
> > > at kafka.network.Processor.run(SocketServer.scala:340)
> > >
> > > at java.lang.Thread.run(Thread.java:745)
> > >
> > > On Fri, Jun 24, 2016 at 1:28 PM, Fumo, Vincent <
> vincent_f...@comcast.com
> > >
> > > wrote:
> > >
> > >> I'm seeing similar with the v9 producer. Here is some test code:
> > >>
> > >> @Test
> > >> public void test1() throws InterruptedException {
> > >> Producer<String, String> producer = createProducer(BROKER_DEV);
> > >> producer.send(new ProducerRecord<>(TOPIC, "value"));
> > >> producer.send(new ProducerRecord<>(TOPIC, "key2", "value2"));
> > >> producer.send(new ProducerRecord<>(TOPIC, "key3", "value3"));
> > >> }
> > >>
> > >> @Test
> > >> public void test2() throws InterruptedException {
> > >> Producer<String, String> producer = createProducer(BROKER_DEV);
> > >> producer.send(new ProducerRecord<>(TOPIC, "value"));
> > >> Thread.sleep(10L);
> > >> producer.send(new ProducerRecord<>(TOPIC, "key2", "value2"));
> > >> producer.send(new ProducerRecord<>(TOPIC, "key3", "value3"));
> > >> }
> > >>
> > >>
> > >> public Producer<String, String> createProducer(String broker) {
> > >>
> > >> if (StringUtils.isBlank(broker)) {
> > >> return null;
> > >> }
> > >>
> > >> Properties props = new Properties();
> > >>
> > >> props.put("bootstrap.servers", broker);
> > >> props.put("key.serializer",
> > >> "org.apache.kafka.common.serialization.StringSerializer");
> > >> props.put("value.serializer",
> > >> "org.apache.kafka.common.serialization.StringSerializer");
> > >> props.put("producer.type", "async");
> > >>
> > >> props.put("max.block.ms", "500");
> > >> props.put("acks", "all");
> > >> props.put("retries", "0");
> > >> props.put("batch.size", "1638");
> > >> props.put("linger.ms", "1");
> > >> props.put("buffer.memory", "33554432");
> > >> props.put("compression.type", "gzip");
> > >> props.put("client.id", "testClientId");
> > >>
> > >> return new KafkaProducer<>(props);
> > >> }
> > >>
> > >> /usr/local/kafka/bin/kafka-console-consumer.sh --zookeeper
> > >> mer-arch-zk-01d.something.com:2181 --property print.key=true --topic
> > test
> > >>
> > >> note that when I run test1() I get nothing posted to the topic at all.
> > >> Here is the log produced ::
> > >>
> > >> 16:15:44.527 [main] INFO o.a.k.c.producer.ProducerConfig -
> > >> ProducerConfig values:
> > >> compression.type = gzip
> > >> metric.reporters = []
> > >> metadata.max.age.ms = 300000
> > >> metadata.fetch.timeout.ms = 60000
> > >> reconnect.backoff.ms = 50
> > >> sasl.kerberos.ticket.renew.window.factor = 0.8
> > >> bootstrap.servers = [cmp-arch-kafka-01d.something.com:9092]
> > >> retry.backoff.ms = 100
> > >> sasl.kerberos.kinit.cmd = /usr/bin/kinit
> > >> buffer.memory = 33554432
> > >> timeout.ms = 30000
> > >> key.serializer = class
> > >> org.apache.kafka.common.serialization.StringSerializer
> > >> sasl.kerberos.service.name = null
> > >> sasl.kerberos.ticket.renew.jitter = 0.05
> > >> ssl.keystore.type = JKS
> > >> ssl.trustmanager.algorithm = PKIX
> > >> block.on.buffer.full = false
> > >> ssl.key.password = null
> > >> max.block.ms = 500
> > >> sasl.kerberos.min.time.before.relogin = 60000
> > >> connections.max.idle.ms = 540000
> > >> ssl.truststore.password = null
> > >> max.in.flight.requests.per.connection = 5
> > >> metrics.num.samples = 2
> > >> client.id = testClientId
> > >> ssl.endpoint.identification.algorithm = null
> > >> ssl.protocol = TLS
> > >> request.timeout.ms = 30000
> > >> ssl.provider = null
> > >> ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
> > >> acks = all
> > >> batch.size = 1638
> > >> ssl.keystore.location = null
> > >> receive.buffer.bytes = 32768
> > >> ssl.cipher.suites = null
> > >> ssl.truststore.type = JKS
> > >> security.protocol = PLAINTEXT
> > >> retries = 0
> > >> max.request.size = 1048576
> > >> value.serializer = class
> > >> org.apache.kafka.common.serialization.StringSerializer
> > >> ssl.truststore.location = null
> > >> ssl.keystore.password = null
> > >> ssl.keymanager.algorithm = SunX509
> > >> metrics.sample.window.ms = 30000
> > >> partitioner.class = class
> > >> org.apache.kafka.clients.producer.internals.DefaultPartitioner
> > >> send.buffer.bytes = 131072
> > >> linger.ms = 1
> > >>
> > >> 16:15:44.544 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bufferpool-wait-time
> > >> 16:15:44.595 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name buffer-exhausted-records
> > >> 16:15:44.599 [main] DEBUG org.apache.kafka.clients.Metadata - Updated
> > >> cluster metadata version 1 to Cluster(nodes = [Node(-1,
> > >> cmp-arch-kafka-01d.something.com, 9092)], partitions = [])
> > >> 16:15:44.613 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name connections-closed:client-id-testClientId
> > >> 16:15:44.613 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name connections-created:client-id-testClientId
> > >> 16:15:44.613 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-sent-received:client-id-testClientId
> > >> 16:15:44.613 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-sent:client-id-testClientId
> > >> 16:15:44.615 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-received:client-id-testClientId
> > >> 16:15:44.615 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name select-time:client-id-testClientId
> > >> 16:15:44.615 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name io-time:client-id-testClientId
> > >> 16:15:44.620 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name batch-size
> > >> 16:15:44.620 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name compression-rate
> > >> 16:15:44.620 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name queue-time
> > >> 16:15:44.620 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name request-time
> > >> 16:15:44.621 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name produce-throttle-time
> > >> 16:15:44.621 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name records-per-request
> > >> 16:15:44.621 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name record-retries
> > >> 16:15:44.621 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name errors
> > >> 16:15:44.621 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name record-size-max
> > >> 16:15:44.624 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.k.c.producer.internals.Sender - Starting Kafka producer I/O
> thread.
> > >> 16:15:44.624 [main] WARN o.a.k.c.producer.ProducerConfig - The
> > >> configuration producer.type = async was supplied but isn't a known
> > config.
> > >> 16:15:44.626 [main] INFO o.a.kafka.common.utils.AppInfoParser - Kafka
> > >> version : 0.9.0.1
> > >> 16:15:44.626 [main] INFO o.a.kafka.common.utils.AppInfoParser - Kafka
> > >> commitId : 23c69d62a0cabf06
> > >> 16:15:44.627 [main] DEBUG o.a.k.clients.producer.KafkaProducer - Kafka
> > >> producer started
> > >> 16:15:44.703 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initialize connection to node
> -1
> > for
> > >> sending metadata request
> > >> 16:15:44.703 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initiating connection to node
> -1
> > at
> > >> cmp-arch-kafka-01d.something.com:9092.
> > >> 16:15:44.776 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > node--1.bytes-sent
> > >> 16:15:44.777 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> node--1.bytes-received
> > >> 16:15:44.777 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > node--1.latency
> > >> 16:15:44.779 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Completed connection to node -1
> > >> 16:15:44.905 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Sending metadata request
> > >> ClientRequest(expectResponse=true, callback=null,
> > >>
> >
> request=RequestSend(header={api_key=3,api_version=0,correlation_id=0,client_id=testClientId},
> > >> body={topics=[test]}), isInitiatedByNetworkClient,
> > >> createdTimeMs=1466799344876, sendTimeMs=0) to node -1
> > >> 16:15:44.931 [kafka-producer-network-thread | testClientId] DEBUG
> > >> org.apache.kafka.clients.Metadata - Updated cluster metadata version 2
> > to
> > >> Cluster(nodes = [Node(0, cmp-arch-kafka-01d.something.com, 9092)],
> > >> partitions = [Partition(topic = test, partition = 0, leader = 0,
> > replicas =
> > >> [0,], isr = [0,]])
> > >> 16:15:44.944 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initiating connection to node 0
> > at
> > >> cmp-arch-kafka-01d.something.com:9092.
> > >>
> > >>
> > >> when I run test2() (which only introduces a 10ms sleep after the first
> > >> send) things work as expected and I get this in the consumer/topic
> > >>
> > >> null value
> > >> key2 value2
> > >> key3 value3
> > >>
> > >> and this log ::
> > >>
> > >>
> > >> 16:20:24.128 [main] INFO o.a.k.c.producer.ProducerConfig -
> > >> ProducerConfig values:
> > >> compression.type = gzip
> > >> metric.reporters = []
> > >> metadata.max.age.ms = 300000
> > >> metadata.fetch.timeout.ms = 60000
> > >> reconnect.backoff.ms = 50
> > >> sasl.kerberos.ticket.renew.window.factor = 0.8
> > >> bootstrap.servers = [cmp-arch-kafka-01d.something.com:9092]
> > >> retry.backoff.ms = 100
> > >> sasl.kerberos.kinit.cmd = /usr/bin/kinit
> > >> buffer.memory = 33554432
> > >> timeout.ms = 30000
> > >> key.serializer = class
> > >> org.apache.kafka.common.serialization.StringSerializer
> > >> sasl.kerberos.service.name = null
> > >> sasl.kerberos.ticket.renew.jitter = 0.05
> > >> ssl.keystore.type = JKS
> > >> ssl.trustmanager.algorithm = PKIX
> > >> block.on.buffer.full = false
> > >> ssl.key.password = null
> > >> max.block.ms = 500
> > >> sasl.kerberos.min.time.before.relogin = 60000
> > >> connections.max.idle.ms = 540000
> > >> ssl.truststore.password = null
> > >> max.in.flight.requests.per.connection = 5
> > >> metrics.num.samples = 2
> > >> client.id = testClientId
> > >> ssl.endpoint.identification.algorithm = null
> > >> ssl.protocol = TLS
> > >> request.timeout.ms = 30000
> > >> ssl.provider = null
> > >> ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
> > >> acks = all
> > >> batch.size = 1638
> > >> ssl.keystore.location = null
> > >> receive.buffer.bytes = 32768
> > >> ssl.cipher.suites = null
> > >> ssl.truststore.type = JKS
> > >> security.protocol = PLAINTEXT
> > >> retries = 0
> > >> max.request.size = 1048576
> > >> value.serializer = class
> > >> org.apache.kafka.common.serialization.StringSerializer
> > >> ssl.truststore.location = null
> > >> ssl.keystore.password = null
> > >> ssl.keymanager.algorithm = SunX509
> > >> metrics.sample.window.ms = 30000
> > >> partitioner.class = class
> > >> org.apache.kafka.clients.producer.internals.DefaultPartitioner
> > >> send.buffer.bytes = 131072
> > >> linger.ms = 1
> > >>
> > >> 16:20:24.157 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bufferpool-wait-time
> > >> 16:20:24.258 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name buffer-exhausted-records
> > >> 16:20:24.679 [main] DEBUG org.apache.kafka.clients.Metadata - Updated
> > >> cluster metadata version 1 to Cluster(nodes = [Node(-1,
> > >> cmp-arch-kafka-01d.something.com, 9092)], partitions = [])
> > >> 16:20:24.698 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name connections-closed:client-id-testClientId
> > >> 16:20:24.698 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name connections-created:client-id-testClientId
> > >> 16:20:24.698 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-sent-received:client-id-testClientId
> > >> 16:20:24.698 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-sent:client-id-testClientId
> > >> 16:20:24.700 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name bytes-received:client-id-testClientId
> > >> 16:20:24.700 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name select-time:client-id-testClientId
> > >> 16:20:24.701 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name io-time:client-id-testClientId
> > >> 16:20:24.706 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name batch-size
> > >> 16:20:24.707 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name compression-rate
> > >> 16:20:24.707 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name queue-time
> > >> 16:20:24.707 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name request-time
> > >> 16:20:24.708 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name produce-throttle-time
> > >> 16:20:24.708 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name records-per-request
> > >> 16:20:24.708 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name record-retries
> > >> 16:20:24.708 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name errors
> > >> 16:20:24.708 [main] DEBUG o.a.kafka.common.metrics.Metrics - Added
> > sensor
> > >> with name record-size-max
> > >> 16:20:24.710 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.k.c.producer.internals.Sender - Starting Kafka producer I/O
> thread.
> > >> 16:20:24.711 [main] WARN o.a.k.c.producer.ProducerConfig - The
> > >> configuration producer.type = async was supplied but isn't a known
> > config.
> > >> 16:20:24.713 [main] INFO o.a.kafka.common.utils.AppInfoParser - Kafka
> > >> version : 0.9.0.1
> > >> 16:20:24.713 [main] INFO o.a.kafka.common.utils.AppInfoParser - Kafka
> > >> commitId : 23c69d62a0cabf06
> > >> 16:20:24.714 [main] DEBUG o.a.k.clients.producer.KafkaProducer - Kafka
> > >> producer started
> > >> 16:20:24.782 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initialize connection to node
> -1
> > for
> > >> sending metadata request
> > >> 16:20:24.782 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initiating connection to node
> -1
> > at
> > >> cmp-arch-kafka-01d.something.com:9092.
> > >> 16:20:24.868 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > node--1.bytes-sent
> > >> 16:20:24.869 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> node--1.bytes-received
> > >> 16:20:24.869 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > node--1.latency
> > >> 16:20:24.871 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Completed connection to node -1
> > >> 16:20:24.994 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Sending metadata request
> > >> ClientRequest(expectResponse=true, callback=null,
> > >>
> >
> request=RequestSend(header={api_key=3,api_version=0,correlation_id=0,client_id=testClientId},
> > >> body={topics=[test]}), isInitiatedByNetworkClient,
> > >> createdTimeMs=1466799624967, sendTimeMs=0) to node -1
> > >> 16:20:25.021 [kafka-producer-network-thread | testClientId] DEBUG
> > >> org.apache.kafka.clients.Metadata - Updated cluster metadata version 2
> > to
> > >> Cluster(nodes = [Node(0, cmp-arch-kafka-01d.something.com, 9092)],
> > >> partitions = [Partition(topic = test, partition = 0, leader = 0,
> > replicas =
> > >> [0,], isr = [0,]])
> > >> 16:20:25.035 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Initiating connection to node 0
> > at
> > >> cmp-arch-kafka-01d.something.com:9092.
> > >> 16:20:25.041 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > node-0.bytes-sent
> > >> 16:20:25.041 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> node-0.bytes-received
> > >> 16:20:25.042 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> node-0.latency
> > >> 16:20:25.042 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.apache.kafka.clients.NetworkClient - Completed connection to node 0
> > >> 16:20:25.042 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> topic.test.records-per-batch
> > >> 16:20:25.043 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > topic.test.bytes
> > >> 16:20:25.043 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> topic.test.compression-rate
> > >> 16:20:25.043 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> topic.test.record-retries
> > >> 16:20:25.043 [kafka-producer-network-thread | testClientId] DEBUG
> > >> o.a.kafka.common.metrics.Metrics - Added sensor with name
> > >> topic.test.record-errors
> > >>
> > >>
> > >> ----
> > >>
> > >> when I lower the backoff to say 50ms
> > >>
> > >> I get a logged exception at the start:
> > >>
> > >> 16:24:30.743 [main] DEBUG o.a.k.clients.producer.KafkaProducer -
> > >> Exception occurred during message send:
> > >> org.apache.kafka.common.errors.TimeoutException: Failed to update
> > >> metadata after 50 ms.
> > >>
> > >>
> > >> ----
> > >>
> > >> my thought is that the producer is trying to sync metadata but it is
> > lazy
> > >> about it and doesn't try until a message is sent. But then if other
> > >> messages are in that batch since I have linger set to 1ms, they are
> > lost as
> > >> well. This is apparently solved by setting a tiny delay so that the
> > >> messages are sent in 2 batches. Interestingly, to me, after that delay
> > is
> > >> added, the previously lost first message comes back.
> > >>
> > >> What I'd like to see is the producer establish all it's setup metadata
> > >> syncing on startup.
> > >>
> > >> Am I missing something here?
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> > On Jun 24, 2016, at 4:05 PM, Shekar Tippur <ctip...@gmail.com>
> wrote:
> > >> >
> > >> > Hello,
> > >> >
> > >> > I have a simple Kafka producer directly taken off of
> > >> >
> > >> >
> > >>
> >
> https://kafka.apache.org/090/javadoc/index.html?org/apache/kafka/clients/producer/KafkaProducer.html
> > >> >
> > >> > I have changed the bootstrap.servers property.
> > >> >
> > >> > props.put("bootstrap.servers", "localhost:9092");
> > >> >
> > >> > I dont see any events added to the test topic.
> > >> >
> > >> > console-producer works fine with broker localhost:9092.
> > >> >
> > >> > *I see that if I change *props.put("metadata.fetch.timeout.ms
> ",100);
> > >> >
> > >> > the wait reduces but I still dont see any events in the topic.
> > >> >
> > >> > Can someone please explain what could be going on?
> > >> >
> > >> > - Shekar
> > >>
> > >>
> > >
> >
> --
>
>
> -- Enrico Olivelli
>
