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Posted to commits@beam.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2017/09/04 20:01:00 UTC

[jira] [Updated] (BEAM-2805) Potential arithmetic overflow in Generator#nextAuctionLengthMs()

     [ https://issues.apache.org/jira/browse/BEAM-2805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu updated BEAM-2805:
-------------------------
    Description: 
{code}
    long numEventsForAuctions =
        (config.configuration.numInFlightAuctions * GeneratorConfig.PROPORTION_DENOMINATOR)
        / GeneratorConfig.AUCTION_PROPORTION;
{code}

The multiplication is done on 32-bit integers while long is expected (numEventsForAuctions).

There is possibility for arithmetic overflow

  was:
{code}
    long numEventsForAuctions =
        (config.configuration.numInFlightAuctions * GeneratorConfig.PROPORTION_DENOMINATOR)
        / GeneratorConfig.AUCTION_PROPORTION;
{code}
The multiplication is done on 32-bit integers while long is expected (numEventsForAuctions).

There is possibility for arithmetic overflow


> Potential arithmetic overflow in Generator#nextAuctionLengthMs()
> ----------------------------------------------------------------
>
>                 Key: BEAM-2805
>                 URL: https://issues.apache.org/jira/browse/BEAM-2805
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-extensions
>            Reporter: Ted Yu
>            Assignee: Reuven Lax
>            Priority: Minor
>
> {code}
>     long numEventsForAuctions =
>         (config.configuration.numInFlightAuctions * GeneratorConfig.PROPORTION_DENOMINATOR)
>         / GeneratorConfig.AUCTION_PROPORTION;
> {code}
> The multiplication is done on 32-bit integers while long is expected (numEventsForAuctions).
> There is possibility for arithmetic overflow



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