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From "Ignite TC Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-10619) Add support files transmission between nodes over connection via CommunicationSpi
Date Fri, 17 May 2019 09:00:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-10619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16842017#comment-16842017

Ignite TC Bot commented on IGNITE-10619:

{panel:title=--&gt; Run :: All: No blockers found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity *--&gt; Run :: All* Results|https://ci.ignite.apache.org/viewLog.html?buildId=3856161&amp;buildTypeId=IgniteTests24Java8_RunAll]

> Add support files transmission between nodes over connection via CommunicationSpi
> ---------------------------------------------------------------------------------
>                 Key: IGNITE-10619
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10619
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: persistence
>            Reporter: Maxim Muzafarov
>            Assignee: Maxim Muzafarov
>            Priority: Major
>              Labels: iep-28
> Partition preloader must support cache partition file relocation from one cluster node
to another (the zero copy algorithm [1] assume to be used by default). To achieve this, the
file transfer machinery must be implemented at Apache Ignite over Communication SPI.
> _CommunicationSpi_
> Ignite's Comminication SPI must support to:
> * establishing channel connections to the remote node to an arbitrary topic (GridTopic)
with predefined processing policy;
> * listening incoming channel creation events and registering connection handlers on the
particular node;
> * an arbitrary set of channel parameters on connection handshake;
> _FileTransmitProcessor_
> The file transmission manager must support to:
> * using different approaches of incoming data handling – buffered and direct (zero-copy
approach of FileChannel#transferTo);
> * transferring data by chunks of predefined size with saving intermediate results;
> * re-establishing connection if an error occurs and continue file upload\download;
> * limiting connection bandwidth (upload and download) at runtime;

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