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JVM Option | Recommended Value | Description |
|---|---|---|
-Xms<size> | 256m | Minimum amount of heap space initially allocated to the JVM |
-Xmx<size> | 2g (or more) | Maximum amount of heap space available to the JVM |
-XX:MaxPermSize=<size> | 128m | Maximum amount of memory allocated for permanent generation |
| Note | ||
|---|---|---|
| ||
| As of September 17, 2015, the Shibboleth Project recommends at least 1024M of heap for deployments consuming large (>25M) metadata files. See, for example, the topic on preparing Apache Tomcat for Shibboleth IdP V2. |
Garbage Collection
Explicit garbage collection should always be disabled.
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