Disk usage is one reason to expand. Another reason is if you need more ingest or output throughout for your topic data. If your producers aren't able to send data to kafka fast enough or your consumers are lagging, you might benefit from more brokers and more partitions.
-- Peter
> On Feb 26, 2020, at 12:56 AM, 张祥 <xiangzhang1128@gmail.com> wrote:
>
> In documentation, it is described how to expand cluster:
> https://kafka.apache.org/20/documentation.html#basic_ops_cluster_expansion.
> But I am wondering what the criteria for expand is. I can only think of
> disk usage threshold. For example, suppose several disk usage exceed 80%.
> Is this correct and is there more ?
-- Peter
> On Feb 26, 2020, at 12:56 AM, 张祥 <xiangzhang1128@gmail.com> wrote:
>
> In documentation, it is described how to expand cluster:
> https://kafka.apache.org/20/documentation.html#basic_ops_cluster_expansion.
> But I am wondering what the criteria for expand is. I can only think of
> disk usage threshold. For example, suppose several disk usage exceed 80%.
> Is this correct and is there more ?
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