[jira] [Comment Edited] (IGNITE-21798) Add properties to configure number of RAFT threads

["Vladislav Pyatkov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-21798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17828261#comment-17828261 ] 

Vladislav Pyatkov edited comment on IGNITE-21798 at 3/19/24 10:29 AM:
----------------------------------------------------------------------

Appropriate values to use in tests:
_IGNITE_RAFT_STRIPES_ = 
* CPUs * 2; 
* CPUs; 
* CPUs / 2.

_IGNITE_RAFT_STRIPES_ = 
* Not set; 
* 1; 
* 2; 
* 4.
_IGNITE_RAFT_WAL_YIELD_STRATEGY_ = 
* Not set; 
* true


was (Author: v.pyatkov):
Appropriate values to use in tests:
IGNITE_RAFT_STRIPES = CPUs * 2; CPUs; CPUs / 2
IGNITE_RAFT_STRIPES = Not set; 1; 2; 4
IGNITE_RAFT_WAL_YIELD_STRATEGY = Not set; true

> Add properties to configure number of RAFT threads
> --------------------------------------------------
>
>                 Key: IGNITE-21798
>                 URL: https://issues.apache.org/jira/browse/IGNITE-21798
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Vladislav Pyatkov
>            Priority: Major
>              Labels: ignite-3
>
> h3. Motivation
> We always have to work to reduce the number of threads in the product. In this case, we create a double CPU for each disruptor that is used in the replication layer. This is a lot of threads, and it is redundant in most cases. We have to create a property to regulate the number in a specific case.
> h3. Implementation notes
> * The default number of threads should stay the same until we don't have a test that shows a more stable value.
> * IGNITE_RAFT_STRIPES is a system property to configure the number of stripes.
> * IGNITE_RAFT_WAL_STRIPES is a system property to configure the number of threads that are used to write WAL.
> * IGNITE_RAFT_WAL_YIELD_STRATEGY is a system property to use the Yield strategy for WAL writer threads.
> h3. Definition of done
> Prepare all the described system properties
> The task also assumes a throughput test scenario description



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