[jira] [Commented] (HBASE-23794) Consider setting -XX:MaxDirectMemorySize in the root Maven pom.xml file.

["Nick Dimiduk (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-23794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17030004#comment-17030004 ] 

Nick Dimiduk commented on HBASE-23794:
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What's your suggested value here for the rank-and-file tests [~markrmiller]? You see where this might be added to our base pom in the {{hbase-surefire.argLine}} property?

It's quite possible we have {{LargeTest}} classes that attempt to verify our off-heap data pathways. You might have a look into how those test classes manage themselves before tweaking anything in this area.

> Consider setting -XX:MaxDirectMemorySize in the root Maven pom.xml file.
> ------------------------------------------------------------------------
>
>                 Key: HBASE-23794
>                 URL: https://issues.apache.org/jira/browse/HBASE-23794
>             Project: HBase
>          Issue Type: Test
>            Reporter: Mark Robert Miller
>            Priority: Minor
>
> -XX:MaxDirectMemorySize is an artificial governor on how much off heap memory can be allocated.
> It would be nice to specify explicitly because:
>  # The default can vary by platform / jvm impl - some devs may see random fails
>  # It's just a limiter, it won't pre allocate or anything
>  # A test env should normally ensure a healthy limit as would be done in production



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