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[MAPREDUCE-3528] The task timeout check interval should be configurable independent of mapreduce.task.timeout - MapReduce - [issue]
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...TaskHeartbeatHandler sleeps for 'mapreduce.task.timeout' - between each check. If a task/NM goes bad immediately after starting a task - the timeout is detected in ~2x the configured timeout...
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http://issues.apache.org/jira/browse/MAPREDUCE-3528
Author: Siddharth Seth,
2012-01-10, 13:22
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[MAPREDUCE-3490] RMContainerAllocator counts failed maps towards Reduce ramp up - MapReduce - [issue]
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...The RMContainerAllocator does not differentiate between failed and successful maps while calculating whether reduce tasks are ready to launch. Failed tasks are also counted towards total com...
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http://issues.apache.org/jira/browse/MAPREDUCE-3490
Author: Siddharth Seth,
2012-01-05, 13:22
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[MAPREDUCE-3529] TokenCache does not cache viewfs credentials correctly - MapReduce - [issue]
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...viewfs returns a list of delegation tokens for the actual namenodes. TokenCache caches these based on the actual service name - subsequent calls to TokenCache end up trying to get a new set ...
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http://issues.apache.org/jira/browse/MAPREDUCE-3529
Author: Siddharth Seth,
2012-01-05, 13:22
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[MAPREDUCE-3399] ContainerLocalizer should request new resources after completing the current one - MapReduce - [issue]
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...Currently, the ContainerLocalizer to NM heartbeats to the NM every second. Not very significant, but this causes a ~4second delay in jobs (job jar, splits, etc). Instead, it should heartbeat...
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http://issues.apache.org/jira/browse/MAPREDUCE-3399
Author: Siddharth Seth,
2011-12-28, 13:40
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[MAPREDUCE-3573] Add display names for Shuffle Counters, Uber job counters - MapReduce - [issue]
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http://issues.apache.org/jira/browse/MAPREDUCE-3573
Author: Siddharth Seth,
2011-12-16, 05:32
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[MAPREDUCE-3450] NM port info no longer available in JobHistory - MapReduce - [issue]
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...The NM RPC port used to be part of the hostname field in JobHistory. That seems to have gone missing. Required for the task log link on the history server....
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http://issues.apache.org/jira/browse/MAPREDUCE-3450
Author: Siddharth Seth,
2011-11-30, 13:33
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[MAPREDUCE-3468] Change version to 0.23.1 for ant builds on the 23 branch - MapReduce - [issue]
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...Maven version has been changed to 0.23.1-SNAPSHOT. The ant build files need to change as well....
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http://issues.apache.org/jira/browse/MAPREDUCE-3468
Author: Siddharth Seth,
2011-11-24, 13:15
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[MAPREDUCE-3455] TokenCache should only call getDelegationToken if getDelegationTokens does not return valid tokens - MapReduce - [issue]
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...Currently getDelegationToken is called irrespective of whether getDelegationTokens gives back valid tokens....
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http://issues.apache.org/jira/browse/MAPREDUCE-3455
Author: Siddharth Seth,
2011-11-22, 22:09
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[MAPREDUCE-3400] Change JobHistoryParser to @InterfaceAudience:public - MapReduce - [issue]
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...There's several tools outside of MapReduce which may be used to process MR job history files. Instead of these tools writing their own parser, they could use the MR JobHistoryParser....
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http://issues.apache.org/jira/browse/MAPREDUCE-3400
Author: Siddharth Seth,
2011-11-15, 05:32
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[MAPREDUCE-3084] race when KILL_CONTAINER is received for a LOCALIZED container - MapReduce - [issue]
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...Depending on when ContainersLaunch starts a container, KILL_CONTAINER when container state is LOCALIZED (LAUNCH_CONTAINER event already sent) can end up generating a CONTAINER_LAUNCHED event...
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http://issues.apache.org/jira/browse/MAPREDUCE-3084
Author: Siddharth Seth,
2011-11-15, 00:50
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