lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LUCENE-8398) TieredMergePolicy.getMaxMergedSegmentMB has rounding error
Date Mon, 16 Jul 2018 15:49:01 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-8398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erick Erickson resolved LUCENE-8398.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 7.5
                   master (8.0)

> TieredMergePolicy.getMaxMergedSegmentMB has rounding error
> ----------------------------------------------------------
>
>                 Key: LUCENE-8398
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8398
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/other
>            Reporter: Erick Erickson
>            Assignee: Erick Erickson
>            Priority: Minor
>             Fix For: master (8.0), 7.5
>
>         Attachments: LUCENE-8398.patch, LUCENE-8398.patch
>
>
> This is largely a test artifact since it's unlikely to show up for realistically sized
segments, but the fix is simple and safe.
> This code first does long division then promotes to double for the last calculation.
> {code}
>  return maxMergedSegmentBytes/1024/1024.;
> {code}
> The error can be reproduced with:  -Dtests.seed=EF80BCABAD74A7CF



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message