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Date: Thu, 21 Mar 2013 00:50:24 +0000
Message-ID: 
 <CAPqEvGE474Omea1BFLJ6U_pbAkOwWxk=Dwo35_pc-ATwB4_6iA@mail.gmail.com>
Subject: RE: java.lang.OutOfMemoryError: unable to create new native thread
From: Jabbar Azam <ajazam@gmail.com>
To: user@cassandra.apache.org
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Hello,
Also have a look at
http://www.datastax.com/docs/1.2/install/recommended_settings
 On 21 Mar 2013 00:06, "S C" <asf11@outlook.com> wrote:

>  Apparently max user process was set very low on the machine.
>
> How to check?
> ulimit -u
>
> Set it to unlimited /etc/security/limits.conf
>
> * soft nprocs unlimited
> * hard nprocs unlimited
>
>
>
> ------------------------------
> From: asf11@outlook.com
> To: user@cassandra.apache.org
> Subject: RE: java.lang.OutOfMemoryError: unable to create new native thread
> Date: Fri, 15 Mar 2013 18:57:05 -0500
>
> I think I figured out where the issue is. I will keep you posted soon.
>
> ------------------------------
> From: asf11@outlook.com
> To: user@cassandra.apache.org
> Subject: java.lang.OutOfMemoryError: unable to create new native thread
> Date: Fri, 15 Mar 2013 17:54:25 -0500
>
> I have a Cassandra node that is going down frequently with
> 'java.lang.OutOfMemoryError: unable to create new native thread". Its a
> 16GB VM out of which 4GB is set as Xmx and there are no other process
> running on the VM.  I have about 300 clients connecting to this node on an
> average. I have no indication from vmstats/SAR that my VM has used more
> memory or is memory hungry. Doesn't indicate a memory issue to
> me. Appreciate any pointers to this.
>
> System Specs:
> 2CPU
> 16GB
> RHEL 6.2
>
>
> Thank you.
>

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<p dir=3D"ltr">Hello,<br>
Also have a look at <a href=3D"http://www.datastax.com/docs/1.2/install/rec=
ommended_settings">http://www.datastax.com/docs/1.2/install/recommended_set=
tings</a><br>
</p>
<div class=3D"gmail_quote">On 21 Mar 2013 00:06, &quot;S C&quot; &lt;<a hre=
f=3D"mailto:asf11@outlook.com">asf11@outlook.com</a>&gt; wrote:<br type=3D"=
attribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex">


<div><div dir=3D"ltr">


<div dir=3D"ltr">Apparently max user process was set very low on the machin=
e.<div><br></div><div>How to check?</div><div>ulimit -u</div><div><br></div=
><div>Set it to unlimited /etc/security/limits.conf</div><div><br></div>
<div>* soft nprocs unlimited</div><div>* hard nprocs unlimited</div><div><b=
r></div><div><br><br><div><div></div><hr>From: <a href=3D"mailto:asf11@outl=
ook.com" target=3D"_blank">asf11@outlook.com</a><br>To: <a href=3D"mailto:u=
ser@cassandra.apache.org" target=3D"_blank">user@cassandra.apache.org</a><b=
r>
Subject: RE: java.lang.OutOfMemoryError: unable to create new native thread=
<br>Date: Fri, 15 Mar 2013 18:57:05 -0500<br><br>


<div dir=3D"ltr">I think I figured out where the issue is. I will keep you =
posted soon.<br><br><div><div></div><hr>From: <a href=3D"mailto:asf11@outlo=
ok.com" target=3D"_blank">asf11@outlook.com</a><br>To: <a href=3D"mailto:us=
er@cassandra.apache.org" target=3D"_blank">user@cassandra.apache.org</a><br=
>
Subject: java.lang.OutOfMemoryError: unable to create new native thread<br>=
Date: Fri, 15 Mar 2013 17:54:25 -0500<br><br>


<div dir=3D"ltr">I have a Cassandra node that is going down frequently with=
 &#39;java.lang.OutOfMemoryError: unable to create new native thread&quot;.=
 Its a 16GB VM out of which 4GB is set as Xmx and there are no other proces=
s running on the VM. =A0I have about 300 clients connecting to this node on=
 an average. I have no indication from vmstats/SAR that my VM has used more=
 memory or is memory hungry. Doesn&#39;t indicate a memory issue to me.=A0A=
ppreciate any pointers to this.<div>
<br></div><div>System Specs:=A0</div><div>2CPU</div><div>16GB</div><div>RHE=
L 6.2<br><div><br></div><div><br><span style=3D"font-size:12pt">Thank you.<=
/span></div></div> 		 	   		  </div></div> 		 	   		  </div></div></div></d=
iv>

 		 	   		  </div></div>
</blockquote></div>

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