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Posted to issues@ignite.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/09/10 08:34:00 UTC

[jira] [Commented] (IGNITE-9445) Use valid tag for page write unlock while reading cold page from disk.

    [ https://issues.apache.org/jira/browse/IGNITE-9445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16608872#comment-16608872 ] 

ASF GitHub Bot commented on IGNITE-9445:
----------------------------------------

GitHub user ascherbakoff opened a pull request:

    https://github.com/apache/ignite/pull/4708

    IGNITE-9445 Use valid tag for page write unlock while reading cold page from disk

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gridgain/apache-ignite ignite-9445

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/ignite/pull/4708.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4708
    
----
commit 8754af65f6ad5f5cae0f78f0b16bf61c7712d862
Author: ascherbakoff <al...@...>
Date:   2018-09-02T16:53:33Z

    IGNITE-9445 wip.

commit 988caf6f21d89742fd13b2cec3be3d88d5389220
Author: ascherbakoff <al...@...>
Date:   2018-09-02T17:03:58Z

    IGNITE-9445 wip.

commit 2abb9ade558f7146cc5fd292119a5c74692482cd
Author: Aleksei Scherbakov <al...@...>
Date:   2018-09-06T13:50:05Z

    IGNITE-9445 wip.

commit 6750579ad6b0c1f1788d3b9fb60a50d516e64b4e
Author: Aleksei Scherbakov <al...@...>
Date:   2018-09-07T16:49:43Z

    IGNITE-9445 wip.

commit 29fe6c775e490bcd5e15c2655c2aca69f6164623
Author: Aleksei Scherbakov <al...@...>
Date:   2018-09-10T07:29:59Z

    IGNITE-9445 wip.

commit ecfb812302f8bc7a13c2fce14a49cd6395efb597
Author: Aleksei Scherbakov <al...@...>
Date:   2018-09-10T07:30:30Z

    IGNITE-9445 wip.

----


> Use valid tag for page write unlock while reading cold page from disk.
> ----------------------------------------------------------------------
>
>                 Key: IGNITE-9445
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9445
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Alexei Scherbakov
>            Assignee: Alexei Scherbakov
>            Priority: Major
>
> The problem arises when passing pageId with not actual page rotation tag to org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl#acquirePage(int, long, boolean).
> It's not possible in advance to know the actual value without reading stored page.
> Such scenario may lead to locked forever page if passed and persisted tags are different.
> Solution - unlock the page using actual(persisted) tag value.



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