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From Arya Goudarzi <>
Subject Re: using jna.jar "Unknown mlockall error 0"
Date Thu, 28 Oct 2010 20:06:31 GMT
In this case should one set ulimit -l to the amount of heap size?

-Arya Goudarzi

----- Original Message -----
From: "Peter Schuller" <>
Sent: Saturday, October 9, 2010 1:18:28 AM
Subject: Re: using jna.jar "Unknown mlockall error 0"

> IIRC, mlockall doesn't work as a non root user on Linux.

Memory locking is permitted for non-root on modern Linux, but is
subject to resource limitations (ulimit -l). I believe this also
applies to mlockall() (and not just mlock()), provided that you lock
MCL_CURRENT rather than MCL_FUTURE (Cassandra does the former).

/ Peter Schuller

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