[MAPREDUCE-442] Ability to re-configure hadoop daemons online - ASF JIRA

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Type: New Feature
Status: Resolved
Priority: Major
Resolution: Duplicate
Affects Version/s: None
Fix Version/s: None
Component/s: None
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Description

Example :
Like we have bin hadoop mradmin -refreshNodes we should also have bin hadoop mradmin -reconfigure which re-configures mr while the cluster is online. Few parameters like job-expiry-interval etc can be changed in this way without having to restart the whole cluster.

Master, once reconfigured, can ask the slaves to reconfigure (reload its config) from a well defined location on hdfs or via heartbeat.

We can have some whitelisted configs that have reloadable property.

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is duplicated by

HADOOP-7001 Allow configuration changes without restarting configured nodes

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Assignee:: Unassigned

Reporter:: Amar Kamat

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: 18/Jun/09 08:19

Updated:: 22/Jul/14 21:47

Resolved:: 22/Jul/14 21:47