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From Anderson Goulart <anderson.goul...@boxever.com>
Subject Re: SSD or not for Kafka brokers?
Date Thu, 04 Aug 2016 17:44:31 GMT

You might consider SSD specially for reads - if your consumers are the 
bottleneck (as kafka usually sends sequential bulk messages from memory, 
it won't  add much value to writes). Latency can be also a factor to 
move to SSD (as seek time can vary from 0.2 to 0.8ms on magnetic discs 
compared to 0.1-0.2ms on SSD).

The overall throughput of messages/s was 10% better on SSD (in my tests).

-- Anderson

On 29/07/2016 15:37, Tauzell, Dave wrote:
> In addition for sequential writes, which is common with kafka, SSD isn't much faster
than HDD.
> Dave Tauzell | Senior Software Engineer | Surescripts
> O: 651.855.3042 | www.surescripts.com |   Dave.Tauzell@surescripts.com
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> -----Original Message-----
> From: Gerard Klijs [mailto:gerard.klijs@dizzit.com]
> Sent: Friday, July 29, 2016 9:33 AM
> To: users@kafka.apache.org
> Subject: Re: SSD or not for Kafka brokers?
> As I under stood it won't really has any advantage over using HDD since most things will
work from the working memory anyway. You might want to use SSD for zookeeper through.
> On Fri, Jul 29, 2016 at 12:19 AM Kessiler Rodrigues <kessiler@callinize.com>
> wrote:
>> Hi guys,
>> Should I use SSD for my brokers or not?
>> What are the pros and cons?
>> Thank you!
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