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From "Maxim Muzafarov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-10619) Add support for ReadableByteChannel, WritableByteChannel over CommunicationSpi
Date Wed, 23 Jan 2019 16:16:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-10619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Maxim Muzafarov updated IGNITE-10619:
    Labels: iep-28  (was: iep-28 persistence)

> Add support for ReadableByteChannel, WritableByteChannel over 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
> To benefit from zero copy we must delegate the file transferring to FileChannel#transferTo(long,
long, java.nio.channels.WritableByteChannel) because the fast path of transferTo method is
only executed if the destination buffer inherits from an internal JDK class.
> The {{CommunicationSpi}} needs to support pipe connections between two nodes;
> * The WritableByteChannel needs to be accessed on the supplier side;
> * The ReadableByteChannel needs to be read on the demander side;
> * The CommunicationListener must be extended to respond on new incoming pipe connections;

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