ignite-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vyacheslav Koptilin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-12042) Atempt to remove entries from fully populated data region may result in IgineOutOfMemoryException
Date Tue, 06 Aug 2019 10:24:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-12042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900861#comment-16900861
] 

Vyacheslav Koptilin commented on IGNITE-12042:
----------------------------------------------

Hi [~xtern],

Well, technically it can be done in that way. I have only one following concern. Let's assume
the size of an entry is greater than the page size and only one page was written, for example,
and after that OutOfMemoryException was thrown by allocateDataPage().
So, we have partially-written entry, and I am not sure it is a recoverable case.

It seems to me, the proposed change (\{{IgniteCacheDatabaseSharedManager#ensureFreeSpaceForInsert}}) is
a more predictable way to handle this case, moreover it allows to use cache.get() and cache.remove()
operations even if {{IgniteOutOfMemoryException}} was thrown.

> Atempt to remove entries from fully populated data region may result in IgineOutOfMemoryException
> -------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-12042
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12042
>             Project: Ignite
>          Issue Type: Bug
>    Affects Versions: 2.7
>            Reporter: Vyacheslav Koptilin
>            Assignee: Vyacheslav Koptilin
>            Priority: Major
>             Fix For: 2.8
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Removing entries from non-persistent data region may require allocating a new data page
in order to move a tracked page from one bucket of the free-list to another one.



--
This message was sent by Atlassian JIRA
(v7.6.14#76016)

Mime
View raw message