leader and isr were not set when create the topic

Hi, All

I created a topic with 3 replications and 6 partitions, but when I check
this topic, seems there is no leader and isr were set for this topic, see

bin/kafka-topics.sh --create --zookeeper 10.100.98.100:2181
--replication-factor 3 --partitions 6 --topic perf_producer_p6_test
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.7.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Created topic "perf_producer_p6_test".

root [ at ] precise64:/etc/kafka# bin/kafka-topics.sh --describe --zookeeper
10.100.98.100:2181 --topic perf_producer_p6_test
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.7.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Topic:perf_producer_p6_test PartitionCount:6
ReplicationFactor:3 Configs:
Topic: perf_producer_p6_test Partition: 0 Leader: none
Replicas: 100,101,102 Isr:
Topic: perf_producer_p6_test Partition: 1 Leader: none
Replicas: 101,102,100 Isr:
Topic: perf_producer_p6_test Partition: 2 Leader: none
Replicas: 102,100,101 Isr:
Topic: perf_producer_p6_test Partition: 3 Leader: none
Replicas: 100,102,101 Isr:
Topic: perf_producer_p6_test Partition: 4 Leader: none
Replicas: 101,100,102 Isr:
Topic: perf_producer_p6_test Partition: 5 Leader: none
Replicas: 102,101,100 Isr:

Is there a way to specifically set leader and isr in command line, it is
strange when I create the topic with 5 partitions, it has leader and isr:
root [ at ] precise64:/etc/kafka# bin/kafka-topics.sh --describe --zookeeper
10.100.98.100:2181 --topic perf_producer_p5_test
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/etc/kafka/core/build/dependant-libs-2.10.4/slf4j-log4j12-1.7.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Topic:perf_producer_p5_test PartitionCount:5
ReplicationFactor:3 Configs:
Topic: perf_producer_p5_test Partition: 0 Leader: 102
Replicas: 102,100,101 Isr: 102,100,101
Topic: perf_producer_p5_test Partition: 1 Leader: 102
Replicas: 100,101,102 Isr: 102,101
Topic: perf_producer_p5_test Partition: 2 Leader: 101
Replicas: 101,102,100 Isr: 101,102,100
Topic: perf_producer_p5_test Partition: 3 Leader: 102
Replicas: 102,101,100 Isr: 102,101,100
Topic: perf_producer_p5_test Partition: 4 Leader: 102
Replicas: 100,102,101 Isr: 102,101

Any ideas?

thanks

Alec Li