[jira] [Updated] (MAPREDUCE-5613) DefaultSpeculator.statusUpdate wastes CPU for task attempt id hashing and lookups in an unused empty CHM
[
https://issues.apache.org/jira/browse/MAPREDUCE-5613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gera Shegalov updated MAPREDUCE-5613:
-
Status: Patch Available (was: Open)
> 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}
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[jira] [Updated] (MAPREDUCE-5613) DefaultSpeculator.statusUpdate wastes CPU for task attempt id hashing and lookups in an unused empty CHM
[
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}
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This message was sent by Atlassian JIRA
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[jira] [Updated] (MAPREDUCE-5613) DefaultSpeculator.statusUpdate wastes CPU for task attempt id hashing and lookups in an unused empty CHM
[
https://issues.apache.org/jira/browse/MAPREDUCE-5613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gera Shegalov updated MAPREDUCE-5613:
-
Status: Patch Available (was: Open)
> 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}
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This message was sent by Atlassian JIRA
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[jira] [Updated] (MAPREDUCE-5613) DefaultSpeculator.statusUpdate wastes CPU for task attempt id hashing and lookups in an unused empty CHM
[
https://issues.apache.org/jira/browse/MAPREDUCE-5613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gera Shegalov updated MAPREDUCE-5613:
-
Attachment: MAPREDUCE-5613.v01.patch
> 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}
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