Adjusting Java Virtual Machine (JVM) settings
As with any Java-based web application, you can sometimes improve performance by assigning particular values to the Java Virtual Machine options.
You can edit the JVM minimum and maximum memory settings on a node by editing the values
for the jvm_heap_max and jvm_heap_min variables from
the command line. These values are expressed in MB. For example, to set the minimum and
maximum heap available on the web application node to 4GB, from the command line
interface you would type the following:
jive set webapp.jvm_heap_max 4096
jive set webapp.jvm_heap_min 4096The default JVM values for each of the nodes are listed in Startup property reference. The command settings are listed in Startup property commands. Note that your particular community may need to decrease or increase the default values depending on the size and traffic of your community. For sizing capacity recommendations, see Deployment sizing and capacity planning.
JVM recommendations
| Node | Recommendations |
|---|---|
| Jive Web applications | To ensure that the appropriate resources are available to the
running application, we recommend setting the
jvm_heap_min and jvm_heap_max
to the same value on the web application nodes. In a clustered
environment, these min and max values should be the same for all of
the web application nodes. For larger communities, that is,
communities that get more than 100,000 page views per day or that
contain a large amount of content (more than 100,000 messages,
documents, or blog posts), you may need to increase the JVM heap min
and max settings to be both 4096 or both 6144. |
| Additional cluster nodes (if your configuration includes these optional nodes) | These values should match those of the primary web app nodes. |
| Activity Engine | None. |
| Cache servers (if your configuration includes these optional nodes) | None. |
| Document Conversion (if you have this optional module) | We recommend not changing the default settings. They have consistently performed well in all pre-release quality, stress, and performance tests. |