Mailing-List: contact activemq-users-help@geronimo.apache.org; run by ezmlm
Precedence: bulk
Reply-To: activemq-users@geronimo.apache.org
Received-SPF: pass (asf.osuosl.org: domain of chandrasaurabh@gmail.com
 designates 66.249.82.202 as permitted sender)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
        s=beta; d=gmail.com;
        h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
        b=j7kyUmmOnE4GGksZLaKLf53JaOqSMdJttxx3KmLOSJD0kr42KV489SWBKtGvGpoE/zqpV+sr1FDQY8gXMXHLn0gPBmInzcy0WzZRLD9HghPe4I7FHbLKLmn5s6bJ8YC0CaA01jKEA7RjwlB2q/RQK4m6M9shWmmFe39qbkRAWIA=
Message-ID: <69e8df2c0607212353h5ba3abaetf129fc8c73393acd@mail.gmail.com>
Date: Sat, 22 Jul 2006 12:23:38 +0530
From: "Saurabh Chandra" <chandrasaurabh@gmail.com>
To: activemq-users@geronimo.apache.org
Subject: Re: Memory usage increasing
In-Reply-To: <69e8df2c0607212330mff740feg28784d91f0b08a83@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <69e8df2c0607212330mff740feg28784d91f0b08a83@mail.gmail.com>

Sorry, forgot that attachments won't work on the mailing list. I have
uploaded the screenshots here:
http://picasaweb.google.com/chandrasaurabh/MemScreenshots

regards
Saurabh

On 7/22/06, Saurabh Chandra <chandrasaurabh@gmail.com> wrote:
> Hello,
>
> I was facing some memory issues with our activeMQ app. The memory
> usage increased and byte [] instances are not getting released. I did
> some investigation using jrockit memleak and am attaching screenshots
> of memory increase (hourly), instance counts and ref graph. The ref
> graph points to ActiveMQTextMessage and then to a linked list which is
> self referring. I don't have any linked lists in the code that has
> been written but there is a static string - could that be a culprit?
>
> As can be seen in the graph the memory did become stable finally.
> Could it be "normal" behavior that we should not be alarmed about?
>
> The code being invoked is pretty simple right now -
>
> //Consumer code
> public void onMessage(Message msg) {
>                 logger.debug("######Recieved:"+msg.toString());
>                 try {
>                         FeedValue.setFeed(((TextMessage)msg).getText());
>                         logger.debug("Recieved and FeedValue set ");
>                 } catch (JMSException e) {
>                         // e.printStackTrace();
>                         logger.error("There was a JMSException: ",e.fillInStackTrace());
>                 }
> }
>
> //FeedValue Class
> public class FeedValue {
>
>         private static String feed = "";
>
>         public static String getFeed() {
>                 return feed;
>         }
>
>         public static void setFeed(String feed) {
>                 FeedValue.feed = feed;
>         }
>
> }
>
> Using activeMQ 4.0 and JDK 1.5. ActiveMQ is configured as an embedded
> broker on Tomcat 5.5 using spring to configure it.
>
> regards
> Saurabh
>
>
>