How do I troubleshoot slow performance when navigating my AppDynamics Controller UI from a browser?
This article provides a starting point for self-service troubleshooting of slow Controller performance. A controller is deemed slow when navigating its UI from a browser there is a tangible slowness for the pages or dashboards etc. to load.
NOTE: The scope of this article extends to demo, small, medium and large profile Controllers.
For extra-large Controllers, we recommend that customers start by contacting the AppDynamics Professional Services team who set up their extra-large Controller first. AppD Support can also provide assistance in such matters.
Table of Contents
How are your Controller’s specs configured?
We encourage customers to abide by the published Controller server hardware specs, irrespective of the Controller’s profile. Be sure to maintain a swap space of 10-20 Gb configured on your server. See Controller System Requirements documentation.
How is your memory allocated to Glassfish, MySQL and OS?
It’s quite possible that the GlassFish application server is starving for memory. Be sure to give it its adequate share. However, also be sure that MySQL has its own share of system resources. Last but not least, the server itself is the third contender for system resources.
The GlassFish heap and MySQL buffer pool should all start at around 1/3 of total memory to permit growth. MySQL will occupy more when it’s busy, and GlassFish’s total RAM can grow to over double its heap allocation.
Optimum recommendations for Glassfish appserver and MySQL dB for ideal performance
The following tables show optimum recommendations for different Controller profiles in both on-premises and EC2-RDS Aurora environments.
|
CONTROLLER PROFILE: Demo
|
|
COMPUTE:
Cores, RAM
|
CHANGES:
JVM, HTTP-Thread-Pool, MySQL
|
SUPPORTS
AMAZON AuroraDB
|
|
2 cores,
8Gb RAM
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx2667m</jvm-options>
<jvm-options>-Xms2667m</jvm-options>
<jvm-options>-Xmn889m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="24" min-thread-pool-size="24" max-queue-size="-1" name="http-thread-pool"/>
MySQL changes in db.cnf
innodb_buffer_pool_size=2667M
|
NO
|
Recommendations Top | Table of Contents | Resources
|
CONTROLLER PROFILE: Small
|
|
COMPUTE:
Cores, RAM
|
CHANGES:
JVM, HTTP-Thread-Pool, MySQL
|
SUPPORTS
AMAZON AuroraDB
|
|
4 cores,
16Gb RAM
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx5461m</jvm-options>
<jvm-options>-Xms5461m</jvm-options>
<jvm-options>-Xmn1820m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="48" min-thread-pool-size="48" max-queue-size="-1" name="http-thread-pool"/>
MySQL changes in db.cnf
innodb_buffer_pool_size=5461M
|
NO
|
Recommendations Top | Table of Contents | Resources
|
CONTROLLER PROFILE: Medium
|
|
COMPUTE:
Cores, RAM
|
CHANGES:
JVM, HTTP-Thread-Pool, MySQL
|
SUPPORTS
AMAZON AuroraDB
|
|
Bare-metal:
8 Cores,
128GB RAM
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx43690m</jvm-options>
<jvm-options>-Xms43690m</jvm-options>
<jvm-options>-Xmn14563m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="96" min-thread-pool-size="96" max-queue-size="-1" name="http-thread-pool"/>
MySQLchanges in db.cnf
innodb_buffer_pool_size=43690M
|
YES
|
|
VM:
16 vCPUs,
128GB RAM
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx43690m</jvm-options>
<jvm-options>-Xms43690m</jvm-options>
<jvm-options>-Xmn14563m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="128" min-thread-pool-size="128" max-queue-size="-1" name="http-thread-pool"/>
MySQLchanges in db.cnf
innodb_buffer_pool_size=43690M
|
YES
|
Recommendations Top | Table of Contents | Resources
|
CONTROLLER PROFILE: Large
|
|
COMPUTE:
Cores, RAM
|
CHANGES:
JVM, HTTP-Thread-Pool, MySQL
|
SUPPORTS
AMAZON AuroraDB
|
|
Bare-metal:
28 Cores,
512GB RAM
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx174763m</jvm-options>
<jvm-options>-Xms174763m</jvm-options>
<jvm-options>-Xmn58254m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="336" min-thread-pool-size="336" max-queue-size="-1" name="http-thread-pool"/>
Mysql changes in db.cnf innodb_buffer_pool_size=174763M
|
YES
|
|
VM:
Not recommended
|
Changes in domain.xml for JVM parameters
<jvm-options>-Xmx43690m</jvm-options>
<jvm-options>-Xms43690m</jvm-options>
<jvm-options>-Xmn14563m</jvm-options>
Changes required in domain.xml for http-thread-pool
<thread-pool max-thread-pool-size="8 x vCPUs" min-thread-pool-size="8 x vCPUs" max-queue-size="-1" name="http-thread-pool"/>
MySQLchanges in db.cnf
innodb_buffer_pool_size=43690M
|
YES
|
Recommendations Top | Table of Contents | Resources
What are my next steps?
If the performance issue persists, please contact AppDynamics Support.
Additional Resources
Learn more in the Oracle Java documentation:
