[
https://issues.apache.org/jira/browse/ACCUMULO-4716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated ACCUMULO-4716:
-------------------------------------
Labels: newbie pull-request-available (was: newbie)
> Do not attempt to cache blocks over max array size
> --------------------------------------------------
>
> Key: ACCUMULO-4716
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4716
> Project: Accumulo
> Issue Type: Bug
> Reporter: Keith Turner
> Assignee: Mark Owens
> Labels: newbie, pull-request-available
>
> One might think you could do {{new byte\[Integer.MAX_VALUE\]}} in Java, but
> as I found when looking into ACCUMULO-4708 *suprise* you can't.
> According to the [stack overflow post |https://stackoverflow.com/a/8381338]
> {{new byte\[Integer.MAX_VALUE - 8\]}} should be safe. I was able to do up to
> {{new byte\[Integer.MAX_VALUE - 2\]}} in my local testing.
> When Accumulo caches a block it reads it into a byte array. For example this
> code in
> [CachableBlockFile.java|https://github.com/apache/accumulo/blob/rel/1.8.1/core/src/main/java/org/apache/accumulo/core/file/blockfile/impl/CachableBlockFile.java#L345]
> does this when {{_currBlock.getRawSize() <= cache.getMaxSize()}}.
> This code should ensure the size is less than {{min( cache.getMaxSize(),
> MAX_ARRAY_SIZE)}} inorder to read it into a byte array.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
