I'm use CDH-5.0.0 YRAN.  When i submit a java job use HUE-UI, the job status still show MAP 5%, REDUCE: 5%.    But, if i kill task: "oozie:launcher.xxx", my job continue run, and the output  is ok.   Here is YARN logs:   Log Type: syslog Log Length: 2428904 2014-05-13 16:00:35,925 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Created MRAppMaster for application appattempt_1399966076976_0005_000001 2014-05-13 16:00:36,135 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval; Ignoring. 2014-05-13 16:00:36,144 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts; Ignoring. 2014-05-13 16:00:36,227 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Executing with tokens: 2014-05-13 16:00:36,227 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Kind: YARN_AM_RM_TOKEN, Service: , Ident: (org.apache.hadoop.yarn.security.AMRMTokenIdentifier@cf7e5b2) 2014-05-13 16:00:36,278 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Kind: mapreduce.job, Service: 172.18.1.239:52141, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@2a55de3b) 2014-05-13 16:00:36,279 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Kind: RM_DELEGATION_TOKEN, Service: 172.18.1.237:8032, Ident: (owner=hdfs, renewer=oozie mr token, realUser=oozie, issueDate=1399968023086, maxDate=1400572823086, sequenceNumber=10, masterKeyId=2) 2014-05-13 16:00:36,285 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: The specific max attempts: 2 for application: 5. Attempt num: 1 is last retry: false 2014-05-13 16:00:36,291 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Using mapred newApiCommitter. 2014-05-13 16:00:36,349 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval; Ignoring. 2014-05-13 16:00:36,355 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts; Ignoring. 2014-05-13 16:00:36,781 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: OutputCommitter set in config null 2014-05-13 16:00:36,846 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter 2014-05-13 16:00:36,875 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.jobhistory.EventType for class org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler 2014-05-13 16:00:36,876 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.job.event.JobEventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher 2014-05-13 16:00:36,877 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskEventDispatcher 2014-05-13 16:00:36,878 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskAttemptEventDispatcher 2014-05-13 16:00:36,878 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventType for class org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler 2014-05-13 16:00:36,879 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.speculate.Speculator$EventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$SpeculatorEventDispatcher 2014-05-13 16:00:36,879 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocator$EventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerAllocatorRouter 2014-05-13 16:00:36,880 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher$EventType for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerLauncherRouter 2014-05-13 16:00:36,946 INFO [main] org.apache.hadoop.yarn.event.AsyncDispatcher: Registering class org.apache.hadoop.mapreduce.v2.app.job.event.JobFinishEvent$Type for class org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobFinishEventHandler 2014-05-13 16:00:37,171 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties 2014-05-13 16:00:37,204 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s). 2014-05-13 16:00:37,204 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MRAppMaster metrics system started 2014-05-13 16:00:37,209 INFO [main] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: Adding job token for job_1399966076976_0005 to jobTokenSecretManager 2014-05-13 16:00:37,285 INFO [main] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: Not uberizing job_1399966076976_0005 because: not enabled; too much input; 2014-05-13 16:00:37,320 INFO [main] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: Input size for job job_1399966076976_0005 = 532305912. Number of splits = 4 2014-05-13 16:00:37,321 INFO [main] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: Number of reduces for job job_1399966076976_0005 = 1 2014-05-13 16:00:37,321 INFO [main] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: job_1399966076976_0005Job Transitioned from NEW to INITED 2014-05-13 16:00:37,322 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: MRAppMaster launching normal, non-uberized, multi-container job job_1399966076976_0005. 2014-05-13 16:00:37,343 INFO [main] org.apache.hadoop.ipc.CallQueueManager: Using callQueue class java.util.concurrent.LinkedBlockingQueue 2014-05-13 16:00:37,348 INFO [Socket Reader #1 for port 57705] org.apache.hadoop.ipc.Server: Starting Socket Reader #1 for port 57705 2014-05-13 16:00:37,361 INFO [main] org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl: Adding protocol org.apache.hadoop.mapreduce.v2.api.MRClientProtocolPB to the server 2014-05-13 16:00:37,361 INFO [IPC Server Responder] org.apache.hadoop.ipc.Server: IPC Server Responder: starting 2014-05-13 16:00:37,361 INFO [IPC Server listener on 57705] org.apache.hadoop.ipc.Server: IPC Server listener on 57705: starting 2014-05-13 16:00:37,362 INFO [main] org.apache.hadoop.mapreduce.v2.app.client.MRClientService: Instantiated MRClientService at cairo.hadoop/172.18.1.238:57705 2014-05-13 16:00:37,401 INFO [main] org.mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog 2014-05-13 16:00:37,404 INFO [main] org.apache.hadoop.http.HttpRequestLog: Http request log for http.requests.mapreduce is not defined 2014-05-13 16:00:37,410 INFO [main] org.apache.hadoop.http.HttpServer2: Added global filter 'safety' (class=org.apache.hadoop.http.HttpServer2$QuotingInputFilter) 2014-05-13 16:00:37,455 INFO [main] org.apache.hadoop.http.HttpServer2: Added filter AM_PROXY_FILTER (class=org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter) to context mapreduce 2014-05-13 16:00:37,455 INFO [main] org.apache.hadoop.http.HttpServer2: Added filter AM_PROXY_FILTER (class=org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter) to context static 2014-05-13 16:00:37,457 INFO [main] org.apache.hadoop.http.HttpServer2: adding path spec: /mapreduce/* 2014-05-13 16:00:37,457 INFO [main] org.apache.hadoop.http.HttpServer2: adding path spec: /ws/* 2014-05-13 16:00:37,464 INFO [main] org.apache.hadoop.http.HttpServer2: Jetty bound to port 55186 2014-05-13 16:00:37,464 INFO [main] org.mortbay.log: jetty-6.1.26 2014-05-13 16:00:37,480 INFO [main] org.mortbay.log: Extract jar:file:/opt/cloudera/parcels/CDH-5.0.0-1.cdh5.0.0.p0.47/lib/hadoop-yarn/hadoop-yarn-common-2.3.0-cdh5.0.0.jar!/webapps/mapreduce to /tmp/Jetty_0_0_0_0_55186_mapreduce____.ekfg6/webapp 2014-05-13 16:00:37,627 INFO [main] org.mortbay.log: Started SelectChannelConnector@0.0.0.0:55186 2014-05-13 16:00:37,627 INFO [main] org.apache.hadoop.yarn.webapp.WebApps: Web app /mapreduce started at 55186 2014-05-13 16:00:37,994 INFO [main] org.apache.hadoop.yarn.webapp.WebApps: Registered webapp guice modules 2014-05-13 16:00:37,997 INFO [main] org.apache.hadoop.ipc.CallQueueManager: Using callQueue class java.util.concurrent.LinkedBlockingQueue 2014-05-13 16:00:37,997 INFO [Socket Reader #1 for port 56232] org.apache.hadoop.ipc.Server: Starting Socket Reader #1 for port 56232 2014-05-13 16:00:38,000 INFO [IPC Server Responder] org.apache.hadoop.ipc.Server: IPC Server Responder: starting 2014-05-13 16:00:38,011 INFO [IPC Server listener on 56232] org.apache.hadoop.ipc.Server: IPC Server listener on 56232: starting 2014-05-13 16:00:38,026 INFO [main] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: nodeBlacklistingEnabled:true 2014-05-13 16:00:38,026 INFO [main] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: maxTaskFailuresPerNode is 3 2014-05-13 16:00:38,026 INFO [main] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: blacklistDisablePercent is 33 2014-05-13 16:00:38,056 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval; Ignoring. 2014-05-13 16:00:38,059 WARN [main] org.apache.hadoop.conf.Configuration: job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts; Ignoring. 2014-05-13 16:00:38,098 INFO [main] org.apache.hadoop.yarn.client.RMProxy: Connecting to ResourceManager at miami.hadoop/172.18.1.237:8030 2014-05-13 16:00:38,175 INFO [main] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: maxContainerCapability: 1502 2014-05-13 16:00:38,176 INFO [main] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: queue: root.hdfs 2014-05-13 16:00:38,179 INFO [main] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: Upper limit on the thread pool size is 500 2014-05-13 16:00:38,194 INFO [main] org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy: yarn.client.max-nodemanagers-proxies : 500 2014-05-13 16:00:38,198 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: job_1399966076976_0005Job Transitioned from INITED to SETUP 2014-05-13 16:00:38,199 INFO [CommitterEvent Processor #0] org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler: Processing the event EventType: JOB_SETUP 2014-05-13 16:00:38,273 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: job_1399966076976_0005Job Transitioned from SETUP to RUNNING 2014-05-13 16:00:38,373 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved nantes.hadoop to /default 2014-05-13 16:00:38,385 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved cairo.hadoop to /default 2014-05-13 16:00:38,397 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved miami.hadoop to /default 2014-05-13 16:00:38,398 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1399966076976_0005_m_000000 Task Transitioned from NEW to SCHEDULED 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved nantes.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved cairo.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved miami.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1399966076976_0005_m_000001 Task Transitioned from NEW to SCHEDULED 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved nantes.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved cairo.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved miami.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1399966076976_0005_m_000002 Task Transitioned from NEW to SCHEDULED 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved nantes.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved cairo.hadoop to /default 2014-05-13 16:00:38,399 INFO [AsyncDispatcher event handler] org.apache.hadoop.yarn.util.RackResolver: Resolved miami.hadoop to /default 2014-05-13 16:00:38,400 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1399966076976_0005_m_000003 Task Transitioned from NEW to SCHEDULED 2014-05-13 16:00:38,400 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1399966076976_0005_r_000000 Task Transitioned from NEW to SCHEDULED 2014-05-13 16:00:38,401 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1399966076976_0005_m_000000_0 TaskAttempt Transitioned from NEW to UNASSIGNED 2014-05-13 16:00:38,401 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1399966076976_0005_m_000001_0 TaskAttempt Transitioned from NEW to UNASSIGNED 2014-05-13 16:00:38,401 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1399966076976_0005_m_000002_0 TaskAttempt Transitioned from NEW to UNASSIGNED 2014-05-13 16:00:38,401 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1399966076976_0005_m_000003_0 TaskAttempt Transitioned from NEW to UNASSIGNED 2014-05-13 16:00:38,401 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1399966076976_0005_r_000000_0 TaskAttempt Transitioned from NEW to UNASSIGNED 2014-05-13 16:00:38,402 INFO [Thread-51] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: mapResourceReqt:1024 2014-05-13 16:00:38,405 INFO [Thread-51] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: reduceResourceReqt:1024 2014-05-13 16:00:38,418 INFO [eventHandlingThread] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Event Writer setup for JobId: job_1399966076976_0005, File: hdfs://miami.hadoop:8020/user/hdfs/.staging/job_1399966076976_0005/job_1399966076976_0005_1.jhist 2014-05-13 16:00:39,178 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Before Scheduling: PendingReds:1 ScheduledMaps:4 ScheduledReds:0 AssignedMaps:0 AssignedReds:0 CompletedMaps:0 CompletedReds:0 ContAlloc:0 ContRel:0 HostLocal:0 RackLocal:0 2014-05-13 16:00:39,208 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: getResources() for application_1399966076976_0005: ask=5 release= 0 newContainers=0 finishedContainers=0 resourcelimit=<memory:0, vCores:0> knownNMs=3 2014-05-13 16:00:39,208 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:39,208 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:39,209 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:39,209 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:40,212 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:40,212 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:40,212 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:40,212 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:41,214 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:41,214 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:41,214 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:41,214 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:42,218 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:42,218 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:42,218 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:42,218 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:43,222 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:43,222 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:43,222 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:43,222 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:44,226 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:44,226 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:44,226 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:44,226 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:45,230 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:45,230 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:45,230 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 2014-05-13 16:00:45,230 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Reduce slow start threshold not met. completedMapsForReduceSlowstart 4 2014-05-13 16:00:46,232 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Ramping down all scheduled reduces:0 2014-05-13 16:00:46,232 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Going to preempt 0 2014-05-13 16:00:46,232 INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Recalculating schedule, headroom=0 ... ... ... 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