Alfresco Support tools
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Transcript of Alfresco Support tools
#AlfrescoDayParis
Alfresco Support Admin Tools
Antonio SolerPremier Advance Support Engineer EMEA
Agenda:
● Overview● Dependencies● Features● Use Cases
OVERVIEW
Presentation
● Alfresco is not an easily maintained application. It requires external tools to diagnose, monitor and analyse problems or fine tune configuration specific to the user case. For example, jstack, jVisualVM , Yourkit, etc.
04/FEB/2016
OVERVIEW
In mid-size companies the system administration tasks are run by a one-man band
OVERVIEW
In larger enterprises problem investigation or configuration of a system feature (e.g. LDAP sync) involves several people from different teams: Alfresco admin, sysAdmin, DBAdmin, Developer, network admin, DevOps, project Manager … this can comprise 4 or 5 people ...
Troubleshooting a problem
•One-man band:• Knows a little about everything• Alfresco is not his sole responsibility• Not a specialist or has access to specialist tools.• Alfresco support may need to train the admin how to use a specialist tool
DevOps Team:• Not all available when required• Alfresco is not the only responsibility• A simple task such as putting a class in DEBUG may require an internal change process• Internal security policies may inhibit diagnostic steps, such as accessing the DB or LDAP-AD
Dependencies
Traditionally control of a JVM is made through the JMX (Java Management Extension) which gives access to the Management Beans (MBeans) and the monitoring parameters of the JVM.
Note: JMX is only available in the Enterprise Edition of Alfresco
Starting with version Alfresco 4.2.0 the JMX objects are exposed through the JavaScript API.
Dependencies
● Support Tools depends on the Admin Console provided from version 4.2 Enterprise onwards
● Sample URL http://127.0.0.1:8080/alfresco/s/enterprise/admin/
Dependencies
● Live graphs use the CANVAS browser object which is unavailable on some old browsers:
Internet Explorer Firefox Safari
(Desktop) Chrome Opera (Desktop)
Safari (Mobile)
Opera (Mobile)
Android Browser
6.0 2.0 - 6.0 3.1 - 3.2 4.0 - 13.0 9.0 - 11.0 3.2 10.0 2.0
7.0 7.0 4.0 14.0 11.1 4.0 11.0 2.1
8.0 8.0 5.0 15.0 11.5 4.2 - 4.3 11.1 2.3,3.0
9.0 9.0 5.1 16.0 11.6 5.0 11.5 4.0
● This is the library used: http://smoothiecharts.org/
Features
System Performance
• Live graph of the Memory and CPU usage
• The graph uses a recursive call to refresh data every 2 seconds
• Llightweight webscript that will execute a JMX bean operation (minimal impact)
• Timescale is configurable by the user
Features
Active Sessions
Checks your db pool usage and allows you to check active usernames.
This actually traces sys activity on db side and the current list of logged users
● You can click on one of the usernames to see more details
● You can invalidate the session ticket of one user to force a logoff
Features
HOT THREADS
Based on the famous HotThread tool written in Java
The script calculates the CPU during 5 seconds and displays the stack trace of the 5 busiest threads.
● You can generate reports, save them and send them to support
Features
Thread dump
To troubleshoot performance problems and deadlocks
You can generate as many as you need and navigate through them to compare. Save all and study later (this may not work on IE8 due the functions used to save, copy and paste then manually).
The output is formatted to resemble a Jstack
Features
Log Settings
A live class can be set easily to debug, tailed in system log remotely with a nice UI and with only 2 clicks.
Features
THREAD SAMPLER
allows you to see what each thread on the system is doing, every 5 seconds
threads are coloured depending on their status
clicking on one of them displays the stacktrace.
Threadumps can be saved in json format to send to a support ticket or loaded later using the same page to analyze them.
Features
Apart from that there are 4 little tools that could be helpful on some cases
- JMX Settings on the DB
To find which beans have values overridden from the DB and revert them to the values on the properties files, use with care
- Test Transformation
Transformation settings and test transformation
- Thread Profiler Provides a live summary of each thread’s memory and CPU usage
- Scheduled JobsLists and interprets the CRON jobs defined internally in Alfresco. Also shows the last execution time.
Contents:
● Acknowledgments
Special thanks to: Mike Farman for his support on this project and parts of the code.
Marco Mancuso for his help on the development and adapting it to Maven standards.
Rich McKnight for his code to access the persisted Mbeans on the DB.
Jamie Allison for his code review, polish and improvements.
Will Abson for his useful advice.
The Smoothie Charts creators: http:smoothiecharts.org/ the library from which was quite useful and fun to use
1.Source code on Github:
Copy from support-tools-1.x from github.com – Alfresco Support Tools to /alfresco/amps
2.Use ./bin/apply_amps or ./bin/alfresco-mmt.jar to install into alfresco.jar
3.Remove .tomat/tmp ./tomcat/work, .webapps/alfresco
4.Restart alfresco
Thanks for watching...