[jira] [Updated] (IGNITE-6003) Detecting low memory on ignite node startup

["Sergey Chugunov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-6003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Chugunov updated IGNITE-6003:
------------------------------------
    Fix Version/s: 2.2

> Detecting low memory on ignite node startup
> -------------------------------------------
>
>                 Key: IGNITE-6003
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6003
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Sergey Chugunov
>             Fix For: 2.2
>
>
> h2. Motivation
> Starting from version 2.0 Ignite keeps all data offheap and allocates it on startup based on MemoryPolicy settings.
> So several Ignite nodes started on the same machine may allocate an order of magnitude more memory than physically available so when putting pressure on such cluster will cause the machine to hang.
> h2. Acceptance Criteria
> # Reliable cross-platform algorithm to detect low memory is developed.
> # Ignite node fails to start with descriptive error message when the algorithm detects low memory which may cause hang.



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