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On 32bit platform, maximum virtual space is 4G. (2^32)
And on 32bit Windows, 2G space is reserved for OS kernel and another 2G space is reserved for a process.
So the maximum memory space that jvm can use is 2G.

Excluding some native os specific memory, generally the maximum java heap available for "one" java process is around 1500M.
In your case this limit seems to lie between 1.1G ~ 1.5G.

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The previous post described how to setup a Queue in Weblogic Server. This post shows the code necessary to run a Simple Messaging example using a servlet and Message Driven Bean. You can always implement an message listener instead of using a Message Driven Bean, but using MDBs is much cleaner and easier. Follow these steps to run the example

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This is a basic example of how to implement Messaging in Java using JMS and Message driven beans. The example is implemented using Weblogic JMS implementation. This part describes how to configure a queue on weblogic, the next part will describe the programming involved to run the example.Follow these steps to configure a queue in Weblogic:

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Jmeter中的脚本录制。
 (1)选中“测试计划”单击鼠标右键,在弹出菜单中选择添加->线程组;
 (2)接下来选中“工作台”单击鼠标右键,在弹出菜单中选择添加->非测试元件->HTTP 代理服务器;
 (3)在“HTTP 代理服务器”窗口中“目标控制器”下拉框选择“测试计划”> “线程组”(表示脚本生成在这个线程组下),分组下拉框选择“每个组放入一个新的控制器”(表示把每组脚本放到一个新的组中,避免生成的脚本杂乱且无法组织);
 (4)单击窗口最下方的开始;
 (5)打开浏览器,设置代理服务器的设置为localhot,端口号为8080(在“HTTP Proxy Server”窗口中设置了使用8080端口进行侦听);
 (6)在地址中键入要录制页面的URL对页面进行操作,Jmeter就会自动把所进行的操作录制成为脚本了,可以看到“线程组”节点下面多了许多的子节点就是录制生成的脚本;
 (7)操作完毕后在Jmeter中单击Stop先停止录制,然后把浏览器的代理设置改为原来的设置即可。

涉及到登录的情形参考:使用Jmeter进行需登录的Web页面性能压力测试

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HBase is a scalable, distributed database built on Hadoop Core.
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