[jira] [Updated] (CASSANDRA-20351) Reading mmapped trie-index exceeding 2GiB results in IndexOutOfBoundsException

["Szymon Miezal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-20351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Szymon Miezal updated CASSANDRA-20351:
--------------------------------------
    Test and Documentation Plan: Unit tests
                         Status: Patch Available  (was: In Progress)

> Reading mmapped trie-index exceeding 2GiB results in IndexOutOfBoundsException
> ------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-20351
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-20351
>             Project: Apache Cassandra
>          Issue Type: Bug
>          Components: Local/SSTable
>            Reporter: Szymon Miezal
>            Assignee: Szymon Miezal
>            Priority: Normal
>             Fix For: 5.0.x, 5.x
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {color:#1f2328}Memory-mapping is done in buffers of size less than 2GiB.{color}
> {color:#1f2328}When these buffers aren't aligned to 4KiB and the trie-index file {color}{color:#1f2328}spans many buffers then reading it results in going out of buffer bounds.{color}
> To fix it we need to {color:#1f2328}make sure that the buffers are correctly aligned.{color}



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