dCache Web Monitoring

THIS PROJECT IS CURRENTLY IN BETA STATE

Introduction

The monitoring system for dCache is built as a separate application using Java servlet technology and works in the Apache Tomcat servlet container. It consists from two parts - the first one works with the database where dCache system puts the detailed information about the data transfers, and the second one is a presentation layer.
Such modular architecture allows to use the tools which do best in each case. The backend part is built using Java and JDBC database driver API and is configurable using XML configuration files. The frontend part is built with OpenLaszlo technology, which allows developers to create applications with the rich user interface capabilities of desktop client software. OpenLaszlo applications are written in XML and JavaScript - just like DHTML, but portable across browsers.
The monitoring system builds the set of plots for various datasets and various time intervals - day, week, month, year... The datasets, the time intervals and data presentation are configurable via XML configuration files. The changes in the configuration can be activated remotely by the system administrator.
The total number of plots varies from system to system and currently is about 50 - 60. This system is in the development for a several months and is used by CDF and CMS dCache systems at Fermilab.
If you want to try it for your dCache installation you can find the source and binary RPMs using the links on this page. Install binary RPM and look at INSTALL and install.sh files in the directory /opt/d-cache/web-dcache. The install.sh script is very simple at the moment, it does not check anything, so use with care!
Take a look at two working installations for CDF and CMS experiments at Fermilab using the links on this page.
This project is under active development, the code is changing frequently, some parts of the code will be changed considerably, some parts can disappear.

Support

Bug reports, comments and suggestions, should be sent to

support at dcache dot org

using the keyword WEB-MONITORING in the subject..

Due to a possible security issue, the download of this tool has been disabled. We will provide an improved version soon.

OS	Components	Download	Rev. Date	md5 hash
Any	All dCache versions	Web dCache 1.1.1-3	Oct 13 2007	a2f37327d155685e1c44a57e57e0b175
Any	Source RPM	web dCache 1.1.1-3	Oct 13 2007	4ba93f5edb06b015312429a0503957c6

Vladimir Podstavkov (podstvkv@fnal.gov)