[ https://issues.apache.org/jira/browse/FLINK-9090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu updated FLINK-9090: -------------------------- Summary: Replace UUID.randomUUID with more efficient PRNG (was: Replace UUID.randomUUID with deterministic PRNG) > Replace UUID.randomUUID with more efficient PRNG > ------------------------------------------------ > > Key: FLINK-9090 > URL: https://issues.apache.org/jira/browse/FLINK-9090 > Project: Flink > Issue Type: Improvement > Reporter: Ted Yu > Assignee: Hai Zhou > Priority: Major > > Currently UUID.randomUUID is called in various places in the code base. > * It is non-deterministic. > * It uses a single secure random for UUID generation. This uses a single JVM > wide lock, and this can lead to lock contention and other performance > problems. > We should move to something that is deterministic by using seeded PRNGs -- This message was sent by Atlassian JIRA (v7.6.3#76005)