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07-01-2019
05:40 AM
@Dear Jay - Just want to clear this we want to installed 3 zookeepers servers that serve only kafka ( and not other application ) in that case can we install the 3 zookeepers servers on 3 kafka hosts ? or we need to dedicated a new hosts ( without kafka ) for the new zookeepers servers? if we cant installed the zookeeper servers ( that are only server the kafka ) on kafka hosts can you please explain why?
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07-01-2019
05:05 AM
we have 5 kafka brokers in our kafka cluster the state for now is on all topics names and all topics are with negative number and Isr without brokers id Topic: test1 Partition: 1 Leader: -1 Replicas: 1,2,3 Isr:
Topic: test2 Partition: 1 Leader: -1 Replicas: 2,3,1 Isr:
Topic: test3 Partition: 1 Leader: -1 Replicas: 3,2,1 Isr:
Topic: test4 Partition: 1 Leader: -1 Replicas: 1,3,2 Isr:
Topic: test5 Partition: 1 Leader: -1 Replicas: 2,1,3 Isr:
any common reason for this behavior ?
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Apache Kafka
07-01-2019
04:32 AM
@Dear Jay - Apache Kafka 2.0.0 , is it the same version of confluent 2.0.0 ?
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06-28-2019
03:22 PM
Hi all We have strange behavior in our Kafka cluster When we run the described info as /usr/hdp/current/kafka-broker/bin/kafka-topics.sh –zookeeperzookeper_server:2181 –describe We get for example ( this is the scenario on all topics ) We get on all topic (-1) and Isr is empty not as should be Topic:__consumer_offsets PartitionCount:50 ReplicationFactor:3 Configs:segment.bytes=1138822,cleanup.policy=compact,compression.type=producer
Topic: __consumer_offsets Partition: 0 Leader: -1 Replicas: 1000,1002,1001 Isr:
Topic: __consumer_offsets Partition: 1 Leader: -1 Replicas: 1000,1002,1001 Isr:
Topic: __consumer_offsets Partition: 2 Leader: -1 Replicas: 1000,1002,1001 Isr:
Topic: __consumer_offsets Partition: 3 Leader: -1 Replicas: 1000,1002,1001 Isr:
Topic: __consumer_offsets Partition: 4 Leader: -1 Replicas: 1000,1002,1001 Isr:
Topic:gen_topic_totCount:100 ReplicationFactor:3 Configs:
Topic: gen_topic_tot: 0 Leader: -1 Replicas: 1002,1000,1001 Isr:
Topic: gen_topic_tot: 1 Leader: -1 Replicas: 1000,1001,1002 Isr:
Topic: gen_topic_tot: 2 Leader: -1 Replicas: 1001,1002,1000 Isr:
This happens after 2 days after we restart the zookeeper and kafka we also try to re-balanced the topics but again after ~20 hours topics return to be not balanced with (-1) as this situation First all topics was balanced and Isr was with correctly brokers ids But after more than 24 hours we get this state From zookeeper logs we not saw something wrong and the same from server.log from kafka , and kafka brokers are up ) 1000 , 1001 , 1002 - are the brokers ids
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06-28-2019
06:30 AM
@dear jay - about - Make sure you allocate sufficient JVM memory. A good starting point is 4GB. , which parameter in ambari need to find in order to set the value to 4G?
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06-28-2019
05:01 AM
@dear Geoffrey Shelton Okot · what you think about the link from stackoverflow ?
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06-28-2019
04:44 AM
@dear Jay in the document ( https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.1.0/release-notes/content/comp_versions.html ) I see the kafka version - Apache Kafka 2.0.0 , is it the same version of confluent 2.0.0 ?
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06-28-2019
04:43 AM
@dear Jay in the document I see the kafka version - Apache Kafka 2.0.0 , is it the same version of confluent 2.0.0 ?
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06-28-2019
04:41 AM
@Dear jay so from the document we see "When using ZooKeeper with Kafka you should dedicate ZooKeeper to Kafka, and not use ZooKeeper for any other components. " this mean - if we install the zookeeper on kafka then zookeeper must serve only kafka machines ? , am I correct ? second - I guess - it is much more better to install the zoo servers on machines that not have other services - for example to install the zoo on clean machine with only redhat OS - am I right here ?
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06-28-2019
04:11 AM
@dear Jay about - Do not run ZooKeeper on a server where Kafka is running. " , can you tell me which document from hortonworks or confluent support this? I mean is it official statement ?
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