Questions tagged [log-analysis]

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Unstructured Log Text Analysis

The situation is as follows - from time to time, I need to analyze huge (10 Gig+) about of pure log text. The outputs are coming from multiple systems (say, a firewall or a classical cloud based ...
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Looking for a friendly eLogBook for laboratory

We are a lab team and we got the task to summarize all our work, the have explain me what a logbook is, a they ask me for configure one. Searching on internet I have found this post: Simple laboratory ...
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Tool to analyze JUnit/xUnit test results over long periods of time

Currently I am using the Jenkins JUnit plugin to generate nice graphs/trends for build results. My project doesn't natively produce a JUnit xml file so I manually create one, and the plugin works ...
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Are there tools for viewing logs with rich data?

I am new to the world of logging. I see that loggers (e.g. sl4j for Java or winston for JavaScript) support several "transports" that allow them to store the logs in files in various formats....
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What software can i use to analyze logs from log4j

I have a bunch of log files ubuntu@ip-172-31-39-132:~/queue/logs$ ls -la total 492296 drwxr-xr-x 2 root root 4096 Feb 4 16:29 . drwxrwxr-x 4 ubuntu ubuntu 4096 Jan 25 22:25 .. -rw-r--r-- ...
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txt comparison and analysis tool

I'm looking for a software that can: take a txt file (with the general structure of config file) as an input. extract some variables from the text. eg. one of the lines could be "max allowed ...
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How to separate human from non-human visits in webserver access logs?

I need to perform usage analysis on a few websites based on no more than standard access logs, e.g. Apache's access_log. Entries have a timestamp, a URL path, a client IP address, a HTTP status, and ...
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Best value-for-money hosted Centralized Logs and Metrics

What is a good solution for centralizing lots of log files for monitoring and analysis? I have about 20 Linux web servers generating ~4GB of nginx and Apache log files per day. I would like at least ...
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  • 141
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local log filtering and analytics

There is a vast amount of log analytics tools available like kibana, datadog and what not. I'm searching for a free tool (license must allow commercial use) that allows to just drop in a log file, of ...
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Logging in .NET Core

I'm building a web server which will be implemented using .NET Core Do you have a recommendation for a logging tool/library?
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Is there a tool for converting logs to source code lines?

We can search -or grep - each line of the log separately to find the each line( or possible lines) of the source code, is there a tool to extract the whole lines of log? Edit 2: typical log lines ...
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1 answer
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Show unique log statements

I have a list of errors from a log and I'd like to reduce it to a list of unique errors. Is there software to do this? In an application log the same statement is often printed many times as that ...
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  • 111
3 votes
1 answer
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What node library should I use for managing logs?

I am getting a set of logs from one application (in a txt file) and I have to separate, process and then send them one by one to another app. The format of the logs that I'm receiving is like this: ...
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Tool/Library suggestions for collecting and analyzing log files from .Net WinForms app

I am developing an old WinForms app which generates three different log files, all with their own log format. All log entries has date/time, message (and possibly exception details). My main purpose ...
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  • 111
2 votes
1 answer
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How to view log or text files of remote computer in browser?

I have a remote Linux server on which some java applications are running and they are generating some log files. I don't want to give my users direct access to the server and files. So is there any ...
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1 answer
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Log analysis tool, shows a timeline of event frequency

I have a log file that looks like this: 06:24:35,524 WARN [ajp-bio-8009-exec-57804][c3p0] Temperature high 16:07:40,457 ERROR [ajp-bio-8009-exec-156][c3p0] Brain not found 17:07:47,789 INFO [ajp-bio-...
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Structured Log viewer

Is there a log viewer for ubuntu 16.04 which is gratis Preferably in the Ubuntu repositories or available via PyPI/pip, but if the quality is really high having it only on Github should be ok as ...
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1 vote
2 answers
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API to parse log files

I am looking for an api that can help me parse the log files, that I can call from my C# code. I do not need a viewer, as there is no requirement to view the logs. Parsing is needed to generate data ...
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2 votes
0 answers
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Log viewer soft with a JSON presentation for windows

I am looking for a software for watching changes on a file . There are a lot of softs for doing log survey like mTail , but I did not found one that can display json on a beautiful way Do you know ...
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Platform-independent and thread-safe logging solution

I'm looking for a possibility to log events in my C/C++ application. This solution should be fast and easy to use compile and work under Windows and Linux be thread-safe not damage the logfile when ...
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  • 141
1 vote
1 answer
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Kibana like dashboards for Cloudwatch

We are heavy users of the ELK stack and have been using Kibana for exploratory analysis of our logs. We're looking to move away from Elasticsearch to Cloudwatch as a store for our operations logs. Is ...
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12 votes
3 answers
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Log viewer with JSON support

I have to refer large logs everyday(>20K lines). Sometimes there are JSONs in the logs. These JSONs are HUGE(>3-5K lines) These impact the readability of the logs - making them very difficult to read....
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  • 121
2 votes
1 answer
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Android install/uninstall log

I am looking for an app that will display a log of all app installations and uninstallations. Each log entry should display the date and optionally also the time of installation or uninstallation ...
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2 votes
4 answers
2k views

Looking for a OSX alternative for baretail

On Windows, to view log files, I use BareTailPro. It's feature rich and I like the fact it provides: real-time update filtering coloring multiple files open in tabs indications of which tabs have ...
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2 votes
0 answers
57 views

Text log viewer with columns, filters and multi-line support

The tool should: Be able to recognize columns: date/time, level, logger name, message (I use log4net format, also custom columns are desirable). Message column may be multi-line. Multi-line entries ...
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  • 210
2 votes
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Merge logs by timestamps

I need a tool that can show two (ideally = N) log files as a single stream merging them according timestamps. Those timestamps, generally speaking, could be in different formats and ideally it would ...
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3 votes
1 answer
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Apache HTTP log analysis down to minute level

I'm looking for a tool that would allow me to answer questions such as: Most visited page(s) on a 10 minute interval (or even shorter), example: between 28/01/2016 20:00 and 28/01/2016 20:10 How many ...
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  • 131
5 votes
1 answer
377 views

Gratis Log visualization tools

First, let me explain what I mean by log visualization tools. I mean something that has a decent GUI that looks semi-impressive (lots of charts/graphs, maybe a pie chart or two). Here's an example ...
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1 vote
0 answers
67 views

Small footprint log analyzer?

Is there log analyzer with these features? runs on Linux keeps log data zip/gzip compressed does not use MySQL/PostgreSQL all indexing can be disabled less than 100MB process size supports batch mode ...
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6 votes
1 answer
247 views

Linux-based log analyzer for Windows system logs

I want to turn my Raspberry Pi B+ into a log parsing and analysis server for my home network (currently 6 computers). For the Linux machines, this should not be too difficult with rsyslog and Logwatch ...
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3 votes
2 answers
5k views

Apache log viewer / analyzer for OS X?

I have a whole bunch of Apache logs that I'd like to idly thumb through. Because each line is so long, however, it's somewhat painful to do through vim - my terminal just isn't long enough. I'd like ...
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1 vote
1 answer
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Logfile viewer that is able to consecutively remove uninteresting loglines

When doing an error analysis with a log file it often happens that I don't know in advance what I am interested in, but want to go the other way: I look at the logfile, and want to remove ...
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2 votes
2 answers
186 views

Open-source business event logger/statistics tool which can integrate easily with Spring applications

I am looking for a tool to help me monitor and generate statistics on events happening in business applications. A simple example of this would be "A person does a lookup in a search bar" or "A ...
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8 votes
0 answers
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Extensible log aggregation compatible with Elasticsearch (like logstash)

Trying to find some alternatives to logstash for log parsing/aggregation. It needs to handle multiple text log file formats. It needs to be extensible (probably with regex) to handle new formats It ...
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8 votes
2 answers
7k views

Mac OS X log file viewer

I'm looking for a robust log file reading application similar to LogFusion, but for the Mac OS. The key features I'd like to use are: Row Highlighting Advanced, realtime Text Filtering Open logs ...
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3 votes
1 answer
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Program to log of deleted files Windows 7 +

I look for a program that save a historical deleted files For example |File----------|User----------|Delete Date--------| my.txt Admin 03/24/2015 file.rar user 03/...
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0 votes
1 answer
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What software or daemon did you use to monitor Linux systems/servers

The monitored items are: historical SSH login/logout historical network upload and download bandwidth usage which network interfaces is down which server/system is down historical CPU usage ...
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1 vote
1 answer
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Need an Email Logging System to identify bouncing addresses, etc

My company is looking for an easy-to-use Email Logging System that can perform analysis on email logs, such as: Show recipients whose emails have been bouncing Show whether a certain email blast has ...
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  • 461
1 vote
2 answers
215 views

Custom log analyzer

I've developed multiple scripts each handling different things, they all spit out a log that I would like to analyze and gather data/statistics from. I've tried to find a custom log handler but ...
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3 votes
1 answer
2k views

Tomcat Log Analyzer

I would like to analyze tomcat logs for potential issues. I found one here web-log-analyzer. I would like to know if similar tools exists. Wanted features. Open source or freeware Find response ...
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5 votes
2 answers
297 views

What would be good log parser GUI tool?

Looking for a good GUI log parsing tool which have the following abilities Can read logs from remote server [via network share, ftp or other protocols] Can read logs from imported log files from ...
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1 vote
0 answers
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Storage Use Case "Logging + Images + Metadata"

I have the following use case for which I'm trying to find an optimal use of either filsystem, database (rdbms or a flavour of noSql solution). Any advice is welcome, as I want to see what is optimal. ...
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5 votes
1 answer
403 views

Computer Forensic Timeline Tool for live system

I am troubleshooting PCs and many times I'd like to find out what a user did before the PC or programs of the PC stopped working. The tool should at least collect information from: Add/remove ...
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2 votes
0 answers
179 views

Rails Logs - Filter By IP of Request and Session

I am searching for a Rails Logging Solution which allows me to filter by IP Address and/or Session. When a particular 'user' has a problem, I want to be able to view only the log entries pertaining to ...
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  • 131
4 votes
2 answers
472 views

How can I view an IRC log file with added colors?

I have some log files that are hard to read without coloring: 05-04-2014 19:04:17 < user!~user@something.net: this is what I say 05-04-2014 19:04:18 < anotheruser!~user@something.net: something ...
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  • 546
36 votes
2 answers
5k views

Apache Log Viewer alternative for Linux

I am looking for a Linux alternative to the Windows program “Apache Log Viewer”. Here is a screenshot: I have been looking around for a while but most of the things I've stumbled upon were ...
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