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From Denis Magda <dma...@gridgain.com>
Subject Re: Stopped working on IGNITE-752 (speed up failure detection)
Date Fri, 24 Jul 2015 16:34:08 GMT
Thanks Dmitriy, please see below

> On 24 июля 2015 г., at 19:15, Dmitriy Setrakyan <dsetrakyan@apache.org> wrote:
> Thanks Denis!
> This feature significantly simplifies failure detection configuration in
> Ignite - just one configuration flag now vs. don't even remember how many.
> Have you run a yardstick test on Amazon EC2 with this new configuration
> flag? If we kill a node in the middle, then drop should be insignificant.
I haven’t. Will play with AWS next week and share the results with the community. It definitely
shouldn’t be worth than before.


> Also, I want to note your excellent handling of Jira communication. The
> ticket has been thoroughly updated every step of the way.
> D.
> On Fri, Jul 24, 2015 at 5:37 AM, Denis Magda <dmagda@gridgain.com <mailto:dmagda@gridgain.com>>
>> Igniters,
>> Have just back merged the changes into the main development branch. Thanks
>> Yakov and Dmitriy for spending your time on review!
>> From now it’s possible to detect failures at cluster nodes'
>> discovery/communication/network levels by altering a single parameter -
>> IgniteConfiguration.failureDetectionTimeout.
>> By setting the failure detection timeout for a server node it will be
>> possible to detect failed nodes in a cluster topology during the time equal
>> to timeout's value and switch to/keep working with only alive nodes.
>> By setting the timeout for a client node will let us to detect failures
>> between the client and its router node (a server node that is a part of a
>> topology).
>> In addition, bunch of other improvements and simplifications were done at
>> the level of TcpDiscoverySpi and TcpCommunicationSpi. Changes are
>> aggregated here:
>> https://issues.apache.org/jira/browse/IGNITE-752 <
>> https://issues.apache.org/jira/browse/IGNITE-752 <https://issues.apache.org/jira/browse/IGNITE-752>>
>> —
>> Denis

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