[jira] [Resolved] (IGNITE-4812) Disable EventStorageSpi by default

["Valentin Kulichenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-4812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Valentin Kulichenko resolved IGNITE-4812.
-----------------------------------------
    Resolution: Fixed

> Disable EventStorageSpi by default
> ----------------------------------
>
>                 Key: IGNITE-4812
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4812
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 1.9
>            Reporter: Valentin Kulichenko
>            Assignee: Alper Tekinalp
>             Fix For: 2.0
>
>
> Current default implementation of {{EventStorageSpi}} is {{MemoryEventStorageSpi}}. It consumes a lot of memory, while is used only for events querying (i.e. not listening), which is a fairly rare use case.
> Need to:
> * Introduce {{NoOpEventStorageSpi}}.
> * Make {{NoOpEventStorageSpi}} the default one.
> * Throw an exception when {{IgniteEvents#localQuery}} or {{#remoteQuery}} method is called with default setting. Exception message should explain how to fix it.



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