Revision as of 14:12, 28 October 2017

Internal

A library that produces timed events from log4j logs.

https://github.com/NovaOrdis/events-log4j-parser

Installs as a command line utility lg-<version>.zip.

./doc/Events log4j Parser TODO.docx.

lg [query] [command] [command options] <log-file1> [log-file2 ...]

The command is optional.

When the command is missing, the implied command is "output", which works as described here:

output

Unless output filtering options are used, the events are displayed in their raw format, which is how they appear in the original log.

Commands:

help
version
output
describe - displays a description of the events produced as the result of the parsing.
time-gaps - identify time gaps in the log
count (-c) - display the number of events that match the query.
exclude (-x) - filter out the events that match the query, and only display those that do not match. This command is equivalent with the grep --invert-match (-v) option.

For more details about commands (procedures), see:

Events Processing (events-processing)

For more details about the query syntax, see:

Queries

@@ Line 37: / Line 37: @@
 * [[Events-processing time-gaps#Overview|time-gaps]] - identify time gaps in the log
 * [[Events-processing#count|count]] (-c) - display the number of events that match the query.
-* [[Events-processing#exclude|exclude]] (-x) - filter out the events that match the query, and only display those that do not match. This command is equivalent with the grep --invert-match (-v) option.
+* [[Events-processing exclude#Overview|exclude]] (-x) - filter out the events that match the query, and only display those that do not match. This command is equivalent with the grep --invert-match (-v) option.
 For more details about commands (procedures), see: {{Internal|Events-processing|Events Processing (events-processing)}}
 For more details about the query syntax, see: {{Internal|Events-api_Concepts#Query|Queries}}