Re: Geode on OSv & Seastar?

[theseusyang <th...@gmail.com>]

Hi All,

I have done some research in Seastar framework and ScyllaDB last year,
ScyllaDB is a C++ version of Cassandra,  on the core processing,  ScyllaDB
uses Seastar as a cross Cpu communication tool, that provides lock-less IO
Mechanism.

That time, I want to migrate geode network communication layer to Seastar
DPDK, add TCP-IP bypassing ability into geode, but there are some
incompatible problems, in the  whole kernel Architecture , network
communication mechanism,...

But I am very interested in integration geode with Seastar, from improving
performance respect.


theseus yang  



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RE: Geode on OSv & Seastar?

[theseusyang <th...@gmail.com>]

Hi Dor,

I have done a short comparation, geode vs scylladb on three aspects, memory,
disk, network.
From the whole distributed system's architecture, there are many
similarities between geode and scylladb, share-nothing distribution,
consistency level, client-server access mode, however some essential
differences also be explicited.

I did a summary table,  

<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/over_arch_1.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/over_archi_2.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/mem_model.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/mem_mngt.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/disk_operation.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/network_mngt.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/program_model.png> 
<http://apache-geode-incubating-developers-forum.70738.x6.nabble.com/file/n6555/HW_config.png> 







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RE: Geode on OSv & Seastar?

[Dor Ben Dov <do...@amdocs.com>]

theseus yang  

Can you share your research about ScyllaDB & Seastar? 

Dor

-----Original Message-----
From: theseusyang [mailto:theseusyang@gmail.com] 
Sent: יום ה 09 יוני 2016 18:18
To: dev@geode.incubator.apache.org
Subject: Re: Geode on OSv & Seastar?

Hi All,

I have done some research in Seastar framework and ScyllaDB last year, ScyllaDB is a C++ version of Cassandra,  on the core processing,  ScyllaDB uses Seastar as a cross Cpu communication tool, that provides lock-less IO Mechanism.

That time, I want to migrate geode network communication layer to Seastar DPDK, add TCP-IP bypassing ability into geode, but there are some incompatible problems, in the  whole kernel Architecture , network communication mechanism,...

But I am very interested in integration geode with Seastar, from improving performance respect.


theseus yang  



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