bq. Tomcat detects that I may have a memory leak Can you show us the warning from Tomcat.
w.r.t. the snippet you posted: the two close() calls should be enclosed in finally block. On Mon, Mar 3, 2014 at 1:21 PM, Toby Lazar <[email protected]> wrote: > I am working on an HBase webapp and Tomcat is telling me I have a memory > leak, which I have confirmed, but I'm not sure how to fix it. I've reduced > my app to a single jsp that calls a single method (both are included below > since they are short). After I reload my application, Tomcat detects that > I may have a memory leak, leading me to think I should be doing something > else when closing an HConnection. I tried the deprecated > HConnectionManager.deleteConnection(config) without any luck. > > I am using Hadoop 2.2/HBase 0.96 client jars and running it on Tomcat > 7.0.47/JVM 1.7.0_45 on CentOS 6.5. > > Any ideas what I'm missing or how to work around this? > > Thanks! > > Toby > > > > JSP is: > > <%@page import="foobar.Test"%> > <%@ page language="java" contentType="text/html; charset=UTF-8" > pageEncoding="UTF-8"%> > <%out.println(Test.hello()); %> > > Java method in the Test class is: > > public static String hello() throws IOException{ > Configuration config = HBaseConfiguration.create(); > HConnection connection = HConnectionManager.createConnection(config); > HTableInterface table = connection.getTable("sometable"); > table.close(); > connection.close(); > return "hellosay"; > } > > > > ******************************* > Toby Lazar > Capital Technology Group > Email: [email protected] > Mobile: 646-469-5865 > ******************************* >
