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https://github.com/jexp/multilog

multiple log file viewer with timestamp synchronization
https://github.com/jexp/multilog

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multiple log file viewer with timestamp synchronization

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About
=====

A side-by-side logfile viewer that synchronizes on timestamps in logfiles.
Useful for cluster setups or correlation between app-server and database logs.

Timestamps are removed from the logfile output and put in the first column to save
width.

Can handle offset (in seconds) per logfile.

Uses "chronic" for date parsing, make sure to install that gem first.

Usage
=====

ruby multilog.rb "date-pattern" logfile1:timeoffset logfile2 logfile3

Example
=======

ruby multilog.rb "Wed May 04 20:16:02 CEST 2011" `find neo4jlogs -name "messages.log"` | less

Sample-Output
=============

Wed May 04 20:17:40 +0200 2011 |: org.neo4j.kernel.ha.zookeeper.ZooClient@786c1a82 | |
Wed May 04 20:17:40 +0200 2011 |: getMaster 1 based on [(1, 1, 1), (2, 1, 4), (3, | |
Wed May 04 20:17:41 +0200 2011 | |: org.neo4j.kernel.ha.zookeeper.ZooClient@337b4703 |
Wed May 04 20:17:41 +0200 2011 | |: Read HA server:neo4jnode3.sf.viadeo.local:6001 ( |
Wed May 04 20:17:41 +0200 2011 | |: getMaster 1 based on [(1, 1, 1), (2, 1, 4), (3, |
Wed May 04 20:17:41 +0200 2011 | |: org.neo4j.kernel.ha.zookeeper.ZooClient@337b4703 |
Wed May 04 20:17:41 +0200 2011 | |: getMaster 1 based on [(1, 1, 1), (2, 1, 4), (3, |
Wed May 04 20:17:41 +0200 2011 | |: newMaster((org.neo4j.kernel.ha.MasterClient@6986 |
| |java.lang.Exception |
| | at org.neo4j.kernel.ha.zookeeper.ZooClient.proce |
| | at org.apache.zookeeper.ClientCnxn$EventThread.p |
| | at org.apache.zookeeper.ClientCnxn$EventThread.r |
Wed May 04 20:17:41 +0200 2011 | |: ReevaluateMyself: machineId=2 with master[(org.n |
Wed May 04 20:17:41 +0200 2011 | |: master-notify not set, is already 1 |
Wed May 04 20:17:41 +0200 2011 | |: Master id for last committed tx ok with highestC |
Wed May 04 20:20:55 +0200 2011 |: getMaster 1 based on [(1, 1, 1), (2, 1, 4), (3, | |
Wed May 04 20:20:57 +0200 2011 | |: getMaster 1 based on [(1, 1, 1), (2, 1, 4), (3, |
Wed May 04 20:26:46 +0200 2011 |: applyTxWithoutTxId log version: 0, committing tx | |
Wed May 04 20:26:46 +0200 2011 |: ZooClient setting txId=2 for machine=1 | |