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From Steve Howard <stevedhow...@gmail.com>
Subject Re: Slow HBase write across data center
Date Thu, 29 Jun 2017 18:27:43 GMT
2 seconds for 100 puts that aggregate 50mb is 20 milliseconds per put.  Out
of curiosity, how are you measuring the time taken for both HBase and the
network latency?  How many sessions are doing the PUT's?  How far away is
the other DC?  Are the HBase connections persistent, or are you doing the
full connection setup for each PUT?

What do you see if you write a simple socket server in the other DC and
send it a 500kb payload (no HBase) in a loop of 100?

On Thu, Jun 29, 2017 at 1:30 PM, Sreeram <sreeram.v@gmail.com> wrote:

> Hi,
>  I am facing very slow write speed when I write to a HBase cluster in
> a different data center. The network round trip takes 1 ms. Average
> time taken for 100 PUTs (each 500KB) takes over 2 seconds. Any network
> or OS parameter that I need to check ?
> Will appreciate any inputs from the community on this.
> Thanks,
> Sreeram

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