[ https://issues.apache.org/jira/browse/MAPREDUCE-5613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gera Shegalov updated MAPREDUCE-5613: ------------------------------------- Status: Open (was: Patch Available) > DefaultSpeculator.statusUpdate wastes CPU for task attempt id hashing and > lookups in an unused empty CHM > -------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-5613 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-5613 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: applicationmaster > Reporter: Gera Shegalov > Attachments: MAPREDUCE-5613.v01.patch > > > The only way pendingSpeculations is used: > {code} > // If the task is already known to be speculation-bait, don't do > anything > if (pendingSpeculations.get(task) != null) { > > if (pendingSpeculations.get(task).get()) { > > return; > > } > > } > {code} -- This message was sent by Atlassian JIRA (v6.1#6144)