Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cassandra.apache.org
Received-SPF: pass (athena.apache.org: domain of jasonmpell@gmail.com
 designates 209.85.160.172 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type:content-transfer-encoding;
        b=hx57o/CK7qqUDwvHwYvBw/A10PMbbaa216iMzQTo3g8gtESGI5XmHSMa01JMTy8BCW
         PoIKEHJd5mj/mA4Lp331roEXy5ofnW0bkbp801IigJjwoU8RhZbbEb3/AzL4TQ0S9ZeF
         1oopX7Evv7XixanGmvrYqRht0nJ6TDG3qMP9c=
MIME-Version: 1.0
In-Reply-To: <B06B0E45-6B1D-4E26-B15D-6E1AF6FF790E@gmail.com>
References: <AANLkTikTAhCm0NRK50tgv9X9hDhC2NfKtu1pjOZGnyqf@mail.gmail.com>
	<AANLkTim7_uH+wjVfjadpWiR5r_nHb0idS++89zHOa-uT@mail.gmail.com>
	<0BCB9213-40DE-4EFC-BF25-40146C7158B1@gmail.com>
	<AANLkTikLFDqv9xcS6=L5zCE_BJP0LEVy0Rvcmxqc8rjG@mail.gmail.com>
	<AANLkTi=58+ATjcKvb45NawXAXLDwufBG74Avcx8Qts-=@mail.gmail.com>
	<AANLkTimVhDj7AqEUOOx5qs-8kpCsUdEwOL9=Hfyy-Df_@mail.gmail.com>
	<6DC2B658-E3AE-48E9-A100-BEE29F68C3D9@gmail.com>
	<AANLkTinGc96p=gAg03QLcUFvL=t91aomYcHzcwFmVmuX@mail.gmail.com>
	<AANLkTimQSWhGaRK3Svr325+x-09VMhL33K-z0m=cQr1Z@mail.gmail.com>
	<AANLkTinnJibZhuyWH_e_KheA0feskwBZNH=vzc01Hy8z@mail.gmail.com>
	<AANLkTi=i1j21x56C2T5E0RFXS-kHr=o-+OgSncOHGnDB@mail.gmail.com>
	<B06B0E45-6B1D-4E26-B15D-6E1AF6FF790E@gmail.com>
Date: Tue, 30 Nov 2010 08:51:10 +1100
Message-ID: <AANLkTinE2yShJ20=yGZH+cfZ74XOF-nc+BdwRAjhfNKi@mail.gmail.com>
Subject: Re: Issues getting JNA to work correctly under centos 5.5 using
 cassandra 0.7.0-rc1 and JNA 2.7.3
From: jasonmpell@gmail.com
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hi,

Thanks for that your suggestions worked a treat.  I created a new
cassandra user and set the value to unlimited
and I get the desired log:

INFO 08:49:50,204 JNA mlockall successful


On Tue, Nov 30, 2010 at 7:56 AM, Jason Pell <jasonmpell@gmail.com> wrote:
> Awesome thanks will make the changes
>
> So is the man page inaccurate? Or is jna doing something wrong?
>
> Sent from my iPhone
>
> On Nov 30, 2010, at 7:28, Nate McCall <nate@riptano.com> wrote:
>
>> Ok, I was able to reproduce this with "0" as the value. Changing it to
>> "unlimited" will make this go away. A closer reading of the
>> limits.conf man page seems to leave some ambiguity when taken with the
>> examples:
>> "All items support the values -1, unlimited or infinity indicating no
>> limit, except for priority and nice."
>>
>> I would recommend tightening this to a specific user. The line I ended
>> up with for the "cassandra" user was:
>>
>> cassandra =A0 =A0 =A0 =A0- =A0 =A0 =A0 memlock =A0 =A0 =A0 unlimited
>>
>> You probably want to add a line for nofile in there at ~ 16384 as well
>> while your there as that can be an issue depending on load.
>>
>>
>>
>> On Mon, Nov 29, 2010 at 1:59 PM, Jason Pell <jason@pellcorp.com> wrote:
>>> * =A0 =A0 =A0 =A0 =A0 =A0 =A0 - =A0 =A0 =A0 memlock =A0 =A0 =A0 =A0 0
>>>
>>>
>>> On Tue, Nov 30, 2010 at 4:40 AM, Nate McCall <nate@riptano.com> wrote:
>>>> What does the current line(s) in limits.conf look like?
>>>>
>>>> On Mon, Nov 29, 2010 at 2:01 AM, =A0<jasonmpell@gmail.com> wrote:
>>>>> I checked and /etc/security/limits.conf on redhat supports zero (0) t=
o
>>>>> mean unlimited. =A0Here is the sample from the man page. =A0Notice th=
e
>>>>> soft core entry.
>>>>>
>>>>> EXAMPLES
>>>>> =A0 =A0 =A0 These are some example lines which might be specified in
>>>>> =A0 =A0 =A0 /etc/security/limits.conf.
>>>>>
>>>>> =A0 =A0 =A0 * =A0 =A0 =A0 =A0 =A0 =A0 =A0 soft =A0 =A0core =A0 =A0 =
=A0 =A0 =A0 =A00
>>>>> =A0 =A0 =A0 * =A0 =A0 =A0 =A0 =A0 =A0 =A0 hard =A0 =A0rss =A0 =A0 =A0=
 =A0 =A0 =A0 10000
>>>>> =A0 =A0 =A0 @student =A0 =A0 =A0 =A0hard =A0 =A0nproc =A0 =A0 =A0 =A0=
 =A0 20
>>>>> =A0 =A0 =A0 @faculty =A0 =A0 =A0 =A0soft =A0 =A0nproc =A0 =A0 =A0 =A0=
 =A0 20
>>>>> =A0 =A0 =A0 @faculty =A0 =A0 =A0 =A0hard =A0 =A0nproc =A0 =A0 =A0 =A0=
 =A0 50
>>>>> =A0 =A0 =A0 ftp =A0 =A0 =A0 =A0 =A0 =A0 hard =A0 =A0nproc =A0 =A0 =A0=
 =A0 =A0 0
>>>>> =A0 =A0 =A0 @student =A0 =A0 =A0 =A0- =A0 =A0 =A0 maxlogins =A0 =A0 =
=A0 4
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Nov 29, 2010 at 6:51 AM, Jason Pell <jasonmpell@gmail.com> wr=
ote:
>>>>>> Ok that's a good point i will check - I am not sure.
>>>>>>
>>>>>> Sent from my iPhone
>>>>>> On Nov 29, 2010, at 5:53, Tyler Hobbs <tyler@riptano.com> wrote:
>>>>>>
>>>>>> I'm not familiar with ulimit on RedHat systems, but are you sure you
>>>>>> have ulimit set correctly? Did you set it to '0' or 'unlimited'? =A0=
I ask
>>>>>> because on a Debian system, I get this:
>>>>>>
>>>>>> thobbs@~ $ ulimit -l
>>>>>> unlimited
>>>>>>
>>>>>> Where you said that you got back '0'.
>>>>>>
>>>>>> - Tyler
>>>>>>
>>>>>> On Sun, Nov 28, 2010 at 1:15 AM, Jason Pell <jason@pellcorp.com> wro=
te:
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have selinux disabled via /etc/sysconfig/selinux already. =A0But =
I did
>>>>>>> as you suggested anyway, even restarted the whole machine again too
>>>>>>> and still no difference. =A0Do you know if there is a way to discov=
er
>>>>>>> exactly what this error means?
>>>>>>>
>>>>>>> THanks
>>>>>>> Jason
>>>>>>>
>>>>>>> On Sat, Nov 27, 2010 at 3:59 AM, Nate McCall <nate@riptano.com> wro=
te:
>>>>>>>> This might be an issue with selinux. You can try this quickly to
>>>>>>>> temporarily disable selinux enforcement:
>>>>>>>> /usr/sbin/setenforce 0 =A0(as root)
>>>>>>>>
>>>>>>>> and then start cassandra as your user.
>>>>>>>>
>>>>>>>> On Fri, Nov 26, 2010 at 1:00 AM, Jason Pell <jasonmpell@gmail.com>
>>>>>>>> wrote:
>>>>>>>>> I restarted the box :-) so it's well and truly set
>>>>>>>>>
>>>>>>>>> Sent from my iPhone
>>>>>>>>> On Nov 26, 2010, at 17:57, Brandon Williams <driftx@gmail.com> wr=
ote:
>>>>>>>>>
>>>>>>>>> On Thu, Nov 25, 2010 at 10:02 PM, Jason Pell <jason@pellcorp.com>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> I have set the memlock limit to unlimited in /etc/security/limit=
s.conf
>>>>>>>>>>
>>>>>>>>>> [developr@localhost apache-cassandra-0.7.0-rc1]$ ulimit -l
>>>>>>>>>> 0
>>>>>>>>>>
>>>>>>>>>> Running as a non root user gets me a Unknown mlockall error 1
>>>>>>>>>
>>>>>>>>> Have you tried logging out and back in after changing limits.conf=
?
>>>>>>>>> -Brandon
>>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>