Kind people on this group, please help me! On Fri, Jul 6, 2018 at 3:24 PM Shantanu Deshmukh <shantanu...@gmail.com> wrote:
> Hello everyone, > > We are running a 3 broker Kafka 0.10.0.1 cluster. We have a java app which > spawns many consumer threads consuming from different topics. For every > topic we have specified different consumer-group. A lot of times I see that > whenever this application is restarted a CG on one or two topics takes more > than 5 minutes to receive partition assignment. Till that time consumers > for that topic don't consumer anything. If I go to Kafka broker and run > consumer-groups.sh and describe that particular CG I see that it is > rebalancing. There is time critical data stored in that topic and we cannot > tolerate such long delays. What can be the reason for such long rebalances. > > Here's our consumer config > > > auto.commit.interval.ms = 3000 > auto.offset.reset = latest > bootstrap.servers = [x.x.x.x:9092, x.x.x.x:9092, x.x.x.x:9092] > check.crcs = true > client.id = > connections.max.idle.ms = 540000 > enable.auto.commit = true > exclude.internal.topics = true > fetch.max.bytes = 52428800 > fetch.max.wait.ms = 500 > fetch.min.bytes = 1 > group.id = otp-notifications-consumer > heartbeat.interval.ms = 3000 > interceptor.classes = null > key.deserializer = class > org.apache.kafka.common.serialization.StringDeserializer > max.partition.fetch.bytes = 1048576 > max.poll.interval.ms = 300000 > max.poll.records = 50 > metadata.max.age.ms = 300000 > metric.reporters = [] > metrics.num.samples = 2 > metrics.sample.window.ms = 30000 > partition.assignment.strategy = [class > org.apache.kafka.clients.consumer.RangeAssignor] > receive.buffer.bytes = 65536 > reconnect.backoff.ms = 50 > request.timeout.ms = 305000 > retry.backoff.ms = 100 > sasl.kerberos.kinit.cmd = /usr/bin/kinit > sasl.kerberos.min.time.before.relogin = 60000 > sasl.kerberos.service.name = null > sasl.kerberos.ticket.renew.jitter = 0.05 > sasl.kerberos.ticket.renew.window.factor = 0.8 > sasl.mechanism = GSSAPI > security.protocol = SSL > send.buffer.bytes = 131072 > session.timeout.ms = 300000 > ssl.cipher.suites = null > ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1] > ssl.endpoint.identification.algorithm = null > ssl.key.password = null > ssl.keymanager.algorithm = SunX509 > ssl.keystore.location = null > ssl.keystore.password = null > ssl.keystore.type = JKS > ssl.protocol = TLS > ssl.provider = null > ssl.secure.random.implementation = null > ssl.trustmanager.algorithm = PKIX > ssl.truststore.location = /x/x/client.truststore.jks > ssl.truststore.password = [hidden] > ssl.truststore.type = JKS > value.deserializer = class > org.apache.kafka.common.serialization.StringDeserializer > > Please help. > > *Thanks & Regards,* > *Shantanu Deshmukh* >
