Does RocksDB need a dedicated CPU?

[bowen.li]

Hi guys, 

Does RocksDB need a dedicated CPU? Do we need to allocate one CPU for each RocksDB while deploying Flink cluster with RocksDB state backend?

I think there's probably no need since RocksDB is a native 'library', but I want to confirm it with Flink community.

Thanks,

Bowen

[Kien Truong]

Hi,

In my experience, RocksDB uses very little CPU, and doesn't need a
dedicated CPU.

However, it's quite disk intensive. You'd need fast, ideally dedicated
SSDs to achieve the best performance.

Regards,

Kien


On 9/5/2017 1:15 PM, Bowen Li wrote:

> Hi guys,
>
> Does RocksDB need a dedicated CPU? Do we need to allocate one CPU for
> each RocksDB while deploying Flink cluster with RocksDB state backend?
>
> I think there's probably no need since RocksDB is a native 'library',
> but I want to confirm it with Flink community.
>
> Thanks,
> Bowen

[bowen.li]

Thank you, Kien!

On Tue, Sep 5, 2017 at 8:01 AM, Kien Truong <[hidden email]> wrote:

Hi,

In my experience, RocksDB uses very little CPU, and doesn't need a dedicated CPU.

However, it's quite disk intensive. You'd need fast, ideally dedicated SSDs to achieve the best performance.

Regards,

Kien

On 9/5/2017 1:15 PM, Bowen Li wrote:

Hi guys,

Does RocksDB need a dedicated CPU? Do we need to allocate one CPU for each RocksDB while deploying Flink cluster with RocksDB state backend?

I think there's probably no need since RocksDB is a native 'library', but I want to confirm it with Flink community.

Thanks,
Bowen