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From "Mallika Kulkarni (Jira)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-15470) Potential Overflow in DatabaseDescriptor Functions That Convert Between KB/MB & Bytes
Date Thu, 16 Jan 2020 07:43:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-15470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mallika Kulkarni updated CASSANDRA-15470:
-----------------------------------------
    Test and Documentation Plan: Unit tests written for newly added validations
                         Status: Patch Available  (was: Open)

[https://github.com/apache/cassandra/pull/425]

> Potential Overflow in DatabaseDescriptor Functions That Convert Between KB/MB & Bytes
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-15470
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15470
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/Config
>            Reporter: Jordan West
>            Assignee: Mallika Kulkarni
>            Priority: Normal
>              Labels: pull-request-available
>             Fix For: 4.0-rc
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {{DatabaseDescriptor}} has several functions that convert between user supplied sizes
in KB/MB and bytes. These are implemented without much consistency and, while unlikely, several
have the potential to overflow since validation on the input is missing. Meanwhile, some widen
the number to a long correctly. Options include: widening in all places or simply doing better
validation on start up — currently only the lower bound of the valid range is checked for
many of these fields.
> List of Affected {{DatabaseDescriptor}} Methods:
>  * {{getColumnIndexSize}}
>  * {{getColumnIndexCacheSize}}
>  * {{getBatchSizeWarnThreshold}}
>  * {{getNativeTransportFrameBlockSize}}
>  * {{getRepairSessionSpaceInMegabytes}}
>  * {{getNativeTransportMaxFrameSize}}



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