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From "Trevor Robinson (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-4442) Stack size settings in assume 64-bit x86
Date Sat, 21 Jul 2012 19:51:34 GMT


Trevor Robinson commented on CASSANDRA-4442:

bq. I suspect we'd have the same problem on other operating systems running on ARM.

Unfortunately, there aren't really any other viable operating systems right now. Oracle [only
supports Linux|]
and OpenJDK has [abysmal performance|]
on ARM.
> Stack size settings in assume 64-bit x86
> ---------------------------------------------------------
>                 Key: CASSANDRA-4442
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.2
>            Reporter: Trevor Robinson
>            Assignee: Trevor Robinson
>             Fix For: 1.1.3
>         Attachments: v1-0001-CASSANDRA-4275-Use-JVM-s-reported-minimum-stack-size-o.txt,
> The fix for CASSANDRA-4275 hard-codes a 160 KB stack size when using Java 7 on Linux.
This assumes the Oracle 7u4 JVM on 64-bit x86. For systems like 32-bit ARM, this size is excessive
(the minimum for 7u4 on ARM is 60-64 KB). Also, the minimum allowed value is version-dependent
and is calculated dynamically by the JVM on startup based on Linux parameters that can also
change. A better approach would be to query the JVM for the minimum stack size.

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