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Application Server FFDC Browser Tool

IP.com Disclosure Number: IPCOM000209525D
Publication Date: 2011-Aug-08
Document File: 4 page(s) / 222K

Publishing Venue

The IP.com Prior Art Database


Disclosed is a tool which provides rapid, direct and orderly access to First-Failure Data Capture (FFDC) incident files.

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Application Server FFDC Browser Tool

An application server First-Failure Data Capture (FFDC) browser enables end users to navigate directly into the FFDC logs in real time, utilizing an organized user interface (UI) that greatly eases access to these key diagnostic files. No existing tool provides such direct access to the FFDCs.

The FFDC browser works in both Base and Network Deployment (ND) application server topologies. It organizes FFDCs in chronological order by server and translates server exception summary logs into lists of exception types. The logs can be filtered by file pattern and date range, and on the z/OS* operating system by STC number for the FFDCs of a given servant. For ND configurations, the tool can scan the topology dynamically generating links to all nodes in the cell, so that the FFDCs of each node can be viewed. The FFDC browser works on both distributed and z/OS operating system platforms.

The FFDC file browser tool enables remote access into an application server installation for problem determination, providing visibility into both FFDC and application server system log files.

The FFDC Tool is a lightweight web application consisting primarily of servlet components. There are no dependencies; it has no Java** resource requirements. In test environments, engineers automatically install this small ear file in one application server in each node of the ND topology using administrator scripting. This enables all of the generated links from the tool's ND scan function to resolve to a valid starting Uniform Resource Locator (URL) ( http://server:port/LV ) for the tool in any given node.

Figure 1:


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Figure 2 illustrates the various filters that can be used to narrow down the list of FFDC logs. Filtering by simple file name pattern is very effective, for example, when a stack trace and FFDC are emitted in the application server log any part of the file name can be pasted in the "filefilter" data entry field and the list of FFDCs is narrowed to files containing that file pattern. Date ranges and STC numbers for servant job logs can also be used to narrow the list of FFDC logs...