Java website, instrumented for performance monitoring

  • Status Closed
  • Budget N/A
  • Total Bids 7

Project Description

I need a website that doesn't do much and is instrumented with AppNeta's TraceView product.

# The site itself

The site itself should require 2 machines to run. The frontend machine should have 3 endpoints:

* /login - This endpoint should make 3 database calls, then return an HTML page.

* /overview - This endpoint should make a database call, a memcache call, and an internal REST API call, and an external REST API call.

* /top_sites - This endpoint should make 50 of the same database call and 2 memcache calls (one set, one get).

All of these should return a page with at least 200 lines of HTML on them. All of them should include a twitter share button.

The backend machine should have one endpoint:

* /api/data - This endpoint should make a database call, and 2 memcache calls (set & get).

For each of the calls above, I specifically mean:

* A database call: Make a call to a MySQL database, which is set up on the same

machine. I don't care what the query is, but it should take 200-400ms to


* A memcache call: Make a call to memcached on the same machine. The set should

set a key (named 'obj_cache'), and the get should retrieve the key 'obj_cache'

90% of the time, and 10% of the time retrieve 'cached_obj'.

* An external REST API call: Make an HTTP call to [url removed, login to view] Don't

worry about passing credentials.

* An internal REST API call: Make an HTTP call to the other server (the

backend), at /api/data.

In all of these cases, you should ignore the result -- the important part is that the call is made.

You should use the following libraries / versions:

* Apache webserver, version 2.2, set up to proxy requests to Tomcat.

* Tomcat webserver, version 6.x.

* Spring MVC framework, version 3

* xmemcache memcache client, version 1.3.6


* Apache HTTP client, version 4.

# The instrumentation

I want to get visibility into what this site is doing. You should instrument

both sites with TraceView. There is a 14 day trial available (link below), which

should give you enough time to instrument this site. Go through the installation

procedure on both machines, and make sure they have the following:

* Basic install (i.e., the tracelyzer daemon is running)

* Apache install on the frontend (i.e., mod_oboe installed)

* Java installation (i.e., [url removed, login to view] loaded via -javaagent in [url removed, login to view])

TraceView trial: [url removed, login to view]

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