[jboss-jira] [JBoss JIRA] (WFCORE-490) ModelControllerImpl uses SecureRandom per requet for no obvious reason

James Livingston (JIRA) issues at jboss.org
Tue Dec 30 23:50:30 EST 2014


James Livingston created WFCORE-490:
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             Summary: ModelControllerImpl uses SecureRandom per requet for no obvious reason
                 Key: WFCORE-490
                 URL: https://issues.jboss.org/browse/WFCORE-490
             Project: WildFly Core
          Issue Type: Enhancement
          Components: Domain Management
    Affects Versions: 1.0.0.Alpha15
            Reporter: James Livingston
            Assignee: Brian Stansberry


https://github.com/wildfly/wildfly-core/blob/master/controller/src/main/java/org/jboss/as/controller/ModelControllerImpl.java#L337 and https://github.com/wildfly/wildfly-core/blob/master/controller/src/main/java/org/jboss/as/controller/ModelControllerImpl.java#L401 create a new SecureRandom which is used to seed a normal Random, and that is thrown away after one use. That causes it to use entropy from the OS pool, which if done at a sufficiently high rate on servers can cause stalls.

I can't think of any reason why the operation ID would need to be a secure random number rather than a normal one, so unless there is one it may be better to use a normal Random and not drain the entropy pool.



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