Created topic by 2 partitions, only can use the one partition

[Jiang Jacky]

Hi, Guys
It is very weird, I created a topic with 2 partitions couple weeks ago, and
I can only production the message to partition 0, not partition 1, but for
now, I created a new topic again with 2 partitions, it does work.
So whats problem of the old topic? I tried to describe the old topic, I
found the following message

        Topic: xxxx      Partition: 0    Leader: 1       Replicas: 1
Isr: 1
        Topic: xxxx      Partition: 1    Leader: 2       Replicas: 2
Isr: 2

Please let me know, if the topic is screwed up.

Thank you