Mixing
Spring Cloud Stream - Kafka Binder, strange log during app start
While starting spring boot application I getting Debug info that show confusing information. My config:
- five message channels
- each belong to his own specific group
- one kafka broker instance
Messages that I'm getting are like:
kafka.utils.ZkUtils : Partition map for /brokers/topics/shopping-topic is Map(0 -> List(1001))
Those info is displayed three or more time for each topic.
Should not the appear one since I have one broker instance and partitioning disabled (I hope I have)
What that info really present? Should I bother about it?
P.S
I've noticed about 15 second delay with app start when enabled kafka messaging is that normal?
debugging apache-kafka spring-cloud-stream
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
add a comment |
While starting spring boot application I getting Debug info that show confusing information. My config:
- five message channels
- each belong to his own specific group
- one kafka broker instance
Messages that I'm getting are like:
kafka.utils.ZkUtils : Partition map for /brokers/topics/shopping-topic is Map(0 -> List(1001))
Those info is displayed three or more time for each topic.
Should not the appear one since I have one broker instance and partitioning disabled (I hope I have)
What that info really present? Should I bother about it?
P.S
I've noticed about 15 second delay with app start when enabled kafka messaging is that normal?
debugging apache-kafka spring-cloud-stream
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35
add a comment |
While starting spring boot application I getting Debug info that show confusing information. My config:
- five message channels
- each belong to his own specific group
- one kafka broker instance
Messages that I'm getting are like:
kafka.utils.ZkUtils : Partition map for /brokers/topics/shopping-topic is Map(0 -> List(1001))
Those info is displayed three or more time for each topic.
Should not the appear one since I have one broker instance and partitioning disabled (I hope I have)
What that info really present? Should I bother about it?
P.S
I've noticed about 15 second delay with app start when enabled kafka messaging is that normal?
debugging apache-kafka spring-cloud-stream
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
While starting spring boot application I getting Debug info that show confusing information. My config:
- five message channels
- each belong to his own specific group
- one kafka broker instance
Messages that I'm getting are like:
kafka.utils.ZkUtils : Partition map for /brokers/topics/shopping-topic is Map(0 -> List(1001))
Those info is displayed three or more time for each topic.
Should not the appear one since I have one broker instance and partitioning disabled (I hope I have)
What that info really present? Should I bother about it?
P.S
I've noticed about 15 second delay with app start when enabled kafka messaging is that normal?
debugging apache-kafka spring-cloud-stream
debugging apache-kafka spring-cloud-stream
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
asked Nov 19 '18 at 15:23
MagGGG
5,59621620
5,59621620
Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35
add a comment |
Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35
Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35
add a comment |
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Can you share your code and configuration, please? This information comes from Zookeeper to get the topic-broker leader mapping. You cannot "disable partitioning", as one broker can make multiple partitions.
– cricket_007
Nov 19 '18 at 21:01
As You stated, Kafka broker can have multiple partitions. Actually by default it is three do that kind of explains my debug log
– MagGGG
Nov 19 '18 at 22:17
Partitions are per topic, not per broker. And the default is actually 1 github.com/apache/kafka/blob/trunk/config/…
– cricket_007
Nov 19 '18 at 23:35