BORIS BERENBERG • 5UPER 5ECRET 5UPPORT 5TAR • ATLASSIAN • @IMATINCR
10 Tips to Pump Up Your Atlassian Performance
BRIAN TOM • SENIOR SUPPORT ENGINEER EXTRAORDINAIRE • ATLASSIAN • @ATLASSAMURAI
!!!WARNING!!!
J I R A
P L AT F O R M
E C O S Y S T E M
Agenda
Platform
Java 8
Tip #1: Java 8
8
InsaneLargeSmall
Tip #2: Heap Heap Heap
Less than 4GB
CMS / ParallelGC / UseParallelOldGC
More than 4GB
G1GC 12gb practical max.
100 GB +
Follow ReferralsFilter ScopeNested Groups
Tip #3: LDAP
Flatten them! Use only what you need Global Catalog
Read Only
Tip #4: JVM Parameters Code Cache in Java 8
-XX:ReservedCodeCacheSize=384m
Server vs Client -server
Tip #5: Server Configuration GZip
General Configuration ->Compress HTTP Responses
NIO protocol=“org.apache.coyote.http11.Http11NioProtocol"
• PostgreSQL • Most used within Atlassian
• Vacuum / auto-vacuum
• Analyze
• MySQL • Analyze
• Optimize
• Oracle • Create indexes on foreign key columns
• Connection config
Tip #6: Database
Tip #7: Backups
JIRA
Tip #8: Custom Fields
Tip #9: Workflows
Tip #10: Permissions and Security Levels
Govern your pumpitude!
Ecosystem
Keep them up to date
Tip #11: Add-on Strategy
Get the bug fixes
Update Check
Keep them up to date
Tip #11: Add-on Strategy
Stay compatible
Get the bug fixes
Incompatible add-ons can cause odd performance issues
Update Check
Keep them up to date
Tip #11: Add-on Strategy
Stay compatible
JQL with caution
Get the bug fixes
Incompatible add-ons can cause odd performance issues
Some add-ons that provide custom JQL functions have a huge impact
Automatic heap dumps
Thread Dumps + thread CPU usage
The right data to solve the problem
GC Logging Access logs
Java 8Heap and GC strategyFast user directories
Custom Fields / Workflows / Permissions
Key Takeaways
Danke und auf Wiedersehen!
BORIS BERENBERG • 5UPER 5ECRET 5UPPORT 5TAR • ATLASSIAN • @IMATINCR
BRIAN TOM • SENIOR SUPPORT ENGINEER EXTRAORDINAIRE • ATLASSIAN • @ATLASSAMURAI
• Slide 5 : Java 8• Learn More About Performance Improvements in JDK 8
• Slide 6 : Heap Heap Heap• Garbage Collector Performance Issues
• Garbage Collection (GC) Tuning Guide
• Slide 7: LDAPNested Groups
• Connecting to an LDAP Directory
• Managing Nested Groups (JIRA)
• Managing Nested Groups (Confluence)
• Flatten nested groups: JRA-27072 | CWD-2082
Resources• Slide 7: LDAP
Filter Scope
• User Management Limitations and Recommendations
• Performance issues with large LDAP repository
• Reduce the number of users synchronized from LDAP to JIRA
• Restricting LDAP Scope
• How to write LDAP search filters
Follow Referrals
• Global Catalog and LDAP Searches
• How do I search from Active Directory’s global catalog?
• Slide 8: JVM Parameters• Server vs Client
• Reserved code cache size
• Slide 9: Server Configuration• Using the NIO connector in Confluence
• Enabling HTTP compression
• Slide 10: Database• Postgres Database Optimizations
• MySQL - Optimize Table
• Deadlocks in Oracle 11G due to missing indexes
• Troubleshooting MySQL performance
• Foreign Keys Constraints created without accompanying index
• Slide 11: Backups• Backing up data (JIRA)
• Production Backup Strategy (Confluence)
• Slides 12,13,14,15: JIRA• Scaling JIRA
Resources (continued)• Slide18: Add-on Strategy
• Managing incompatible add-ons
• Checking add-on compatibility
• Updating add-ons
• Understanding JQL Performance
• Slide 21: The right data to solve the problem• Thread dumps: JIRA | Confluence
• Heap dumps: JIRA | Confluence
• How to enable garbage collection logging
• User access logging: JIRA | Confluence
• Slide 5
• https://pixabay.com/en/strong-arm-muscle-muscles-310874/
• https://commons.wikimedia.org/wiki/File:Vector_cup_of_coffee.svg
• Slide 6
• https://www.flickr.com/photos/baynado/13105622365
• https://en.wikipedia.org/wiki/Granola#/media/File:Granola_bar.jpg
• https://pixabay.com/en/penguin-bird-wildlife-tuxedo-311501/
• Slides 7
• https://commons.wikimedia.org/wiki/File:Russian-Matroshka_no_bg.jpg
• https://en.wikipedia.org/wiki/Coffee_filter#/media/File:Coffee-filter.jpg
• http://www.clker.com/clipart-reuse-2.html
Image Credits• Slide 10
• https://commons.wikimedia.org/wiki/File:Blue_vacuum_cleaner.svg
• Slide 11
• https://simple.wikipedia.org/wiki/Backup#/media/File:Backup_Backup_Backup_-_And_Test_Restores.jpg
• Slide 16
• https://commons.wikimedia.org/wiki/File:ArnoldSchwarzeneggerSDJun10.jpg
• Slide 21
• https://commons.wikimedia.org/wiki/File:Silk_Thread_-_Talat_Sao_-_Vientiane_-_Laos.JPG
• https://commons.wikimedia.org/wiki/File:Heap_metal.jpg
• https://en.wikipedia.org/wiki/Waste_Management_(corporation)#/media/File:Waste_Management_Truck_Toronto.jpg
• Slide 22
• https://pixabay.com/en/brown-paperbags-lunch-bags-309963/
