Integrated to system status data based on the HDFS
SarBox helps user to parse or analyze sar data
This web based application user can view the log file.
log4j support for native nagios (nsca) integration
Partylog2 is a Graylog2 appliance based in Turnkey Linux 12
Graphical java logfile viewer/follower.
Cross-platform multi-tail log colorizer.
A grep-like utility for log files.