[jira] [Commented] (MYRIAD-252) chown: cannot access '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file or directory
[ https://issues.apache.org/jira/browse/MYRIAD-252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15947285#comment-15947285 ] Hongtaosun commented on MYRIAD-252: --- Hi,Do you test the autoscale with zero profile on myriad framework ? Thank you. > chown: cannot access > '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file > or directory > --- > > Key: MYRIAD-252 > URL: https://issues.apache.org/jira/browse/MYRIAD-252 > Project: Myriad > Issue Type: Bug >Reporter: yangjunfeng > > I have configured myriad these days and some probloms shown below: > 14:49:45.216470 23824 fetcher.cpp:409] Fetching URI > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' > I0123 14:49:45.216486 23824 fetcher.cpp:250] Fetching directly into the > sandbox directory > I0123 14:49:45.216532 23824 fetcher.cpp:187] Fetching URI > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' > I0123 14:49:45.851863 23824 fetcher.cpp:109] Downloading resource with Hadoop > client from 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/hadoop-2.7.3.tgz' > I0123 14:49:50.121711 23824 fetcher.cpp:547] Fetched > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/hadoop-2.7.3.tgz' > I0123 14:49:50.121835 23824 fetcher.cpp:409] Fetching URI > 'http://188.188.0.189:8088/conf' > I0123 14:49:50.121855 23824 fetcher.cpp:250] Fetching directly into the > sandbox directory > I0123 14:49:50.121888 23824 fetcher.cpp:187] Fetching URI > 'http://188.188.0.189:8088/conf' > I0123 14:49:50.121911 23824 fetcher.cpp:134] Downloading resource from > 'http://188.188.0.189:8088/conf' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/conf' > W0123 14:49:50.139974 23824 fetcher.cpp:289] Copying instead of extracting > resource from URI with 'extract' flag, because it does not seem to be an > archive: http://188.188.0.189:8088/conf > I0123 14:49:50.140010 23824 fetcher.cpp:547] Fetched > 'http://188.188.0.189:8088/conf' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/conf' > chown: cannot access > '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file > or directory > env: /bin/yarn: No such file or directory > How can I fix this problom? > Thanks very much! -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Created] (MYRIAD-253) can not autoscale with zero profile on myriad 0.2.0
Hongtaosun created MYRIAD-253: - Summary: can not autoscale with zero profile on myriad 0.2.0 Key: MYRIAD-253 URL: https://issues.apache.org/jira/browse/MYRIAD-253 Project: Myriad Issue Type: Bug Reporter: Hongtaosun [root@csv-dcosstorage60 hadoop]# hadoop jar /usr/hadoop-2.7.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.0.jar wordcount /wordcount/1.txt /wordcount/output 17/03/30 17:11:13 INFO client.RMProxy: Connecting to ResourceManager at /20.26.28.246:8032 17/03/30 17:11:14 INFO input.FileInputFormat: Total input paths to process : 1 17/03/30 17:11:14 INFO mapreduce.JobSubmitter: number of splits:1 17/03/30 17:11:14 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1490859953345_0002 17/03/30 17:11:15 INFO mapreduce.JobSubmitter: Cleaning up the staging area /tmp/hadoop-yarn/staging/root/.staging/job_1490859953345_0002 java.io.IOException: org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException: Invalid resource request, requested memory < 0, or requested memory > max configured, requestedMemory=512, maxMemory=0 at org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils.validateResourceRequest(SchedulerUtils.java:204) at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.validateAndCreateResourceRequest(RMAppManager.java:385) at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.createAndPopulateNewRMApp(RMAppManager.java:328) at org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.submitApplication(RMAppManager.java:281) at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.submitApplication(ClientRMService.java:580) at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.submitApplication(ApplicationClientProtocolPBServiceImpl.java:218) at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:419) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043) at org.apache.hadoop.mapred.YARNRunner.submitJob(YARNRunner.java:306) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:243) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308) at org.apache.hadoop.examples.WordCount.main(WordCount.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71) at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144) at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136) Caused by: org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException: Invalid resource request, requested memory < 0, or requested memory > max configured, requestedMemory=512, maxMemory=0 -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Commented] (MYRIAD-252) chown: cannot access '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file or directory
[ https://issues.apache.org/jira/browse/MYRIAD-252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15929510#comment-15929510 ] Hongtaosun commented on MYRIAD-252: --- Oh no. The right method is :I configure the hadoop_home when start the mesos-slave. > chown: cannot access > '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file > or directory > --- > > Key: MYRIAD-252 > URL: https://issues.apache.org/jira/browse/MYRIAD-252 > Project: Myriad > Issue Type: Bug >Reporter: yangjunfeng > > I have configured myriad these days and some probloms shown below: > 14:49:45.216470 23824 fetcher.cpp:409] Fetching URI > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' > I0123 14:49:45.216486 23824 fetcher.cpp:250] Fetching directly into the > sandbox directory > I0123 14:49:45.216532 23824 fetcher.cpp:187] Fetching URI > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' > I0123 14:49:45.851863 23824 fetcher.cpp:109] Downloading resource with Hadoop > client from 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/hadoop-2.7.3.tgz' > I0123 14:49:50.121711 23824 fetcher.cpp:547] Fetched > 'hdfs://188.188.0.189:9000/usr/hadoop-2.7.3.tgz' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/hadoop-2.7.3.tgz' > I0123 14:49:50.121835 23824 fetcher.cpp:409] Fetching URI > 'http://188.188.0.189:8088/conf' > I0123 14:49:50.121855 23824 fetcher.cpp:250] Fetching directly into the > sandbox directory > I0123 14:49:50.121888 23824 fetcher.cpp:187] Fetching URI > 'http://188.188.0.189:8088/conf' > I0123 14:49:50.121911 23824 fetcher.cpp:134] Downloading resource from > 'http://188.188.0.189:8088/conf' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/conf' > W0123 14:49:50.139974 23824 fetcher.cpp:289] Copying instead of extracting > resource from URI with 'extract' flag, because it does not seem to be an > archive: http://188.188.0.189:8088/conf > I0123 14:49:50.140010 23824 fetcher.cpp:547] Fetched > 'http://188.188.0.189:8088/conf' to > '/var/lib/mesos/slaves/3337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/frameworks/1ff6c07d-a86c-400e-abac-e9618a5504db-0014/executors/myriad_executor1ff6c07d-a86c-400e-abac-e9618a5504db-00141ff6c07d-a86c-400e-abac-e9618a5504db-O93123337a77d-41ff-4d1c-b9ce-6b0c971e7ba1-S2/runs/330e5ca9-b8ba-4e30-822a-817f7c905891/conf' > chown: cannot access > '/sys/fs/cgroup/cpu/mesos/330e5ca9-b8ba-4e30-822a-817f7c905891': No such file > or directory > env: /bin/yarn: No such file or directory > How can I fix this problom? > Thanks very much! -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Commented] (MYRIAD-254) can not autoscale with zero profile on myriad 0.2.0
[ https://issues.apache.org/jira/browse/MYRIAD-254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15950179#comment-15950179 ] Hongtaosun commented on MYRIAD-254: --- I just want to test Fine-grained Scaling. my myriad-config-default.yml configuration is below. [root@csv-dcosstorage60 hadoop]# cat myriad-config-default.yml ## # Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. ## mesosMaster: zk://20.26.28.246:2181/mesos checkpoint: false frameworkFailoverTimeout: 111 frameworkName: Myriad-0.2.0 frameworkRole: frameworkUser: root # User the Node Manager runs as, required if nodeManagerURI set, otherwise defaults to the user # running the resource manager. frameworkSuperUser: root # To be depricated, currently permissions need set by a superuser due to Mesos-1790. Must be # root or have passwordless sudo. Required if nodeManagerURI set, ignored otherwise. nativeLibrary: /usr/local/lib/libmesos.so zkServers: 20.26.28.246:2181 zkTimeout: 2 restApiPort: 8192 profiles: zero: # NMs launched with this profile dynamically obtain cpu/mem from Mesos cpu: 0 mem: 0 small: cpu: 1 mem: 1024 medium: cpu: 2 mem: 2048 large: cpu: 4 mem: 4096 nmInstances: # NMs to start with. Requires at least 1 NM with a non-zero profile. medium: 1 # rebalancer: false haEnabled: true nodemanager: jvmMaxMemoryMB: 1024 cpus: 0.2 cgroups: false executor: jvmMaxMemoryMB: 256 #path: file:///usr/local/libexec/mesos/myriad-executor-runnable-0.1.0.jar #The following should be used for a remotely distributed URI, hdfs assumed but other URI types valid. #nodeManagerUri: hdfs://cluster/dist/hadoop-myriad.tgz nodeManagerUri: hdfs://cluster/dist/hadoop-2.7.0.tar.gz #configUri: hdfs://cluster/dist/config.tgz #path: hdfs://cluster/dist/myriad-executor-runnable-0.1.0.jar #nodeManagerUri: hdfs://20.26.4.42:9000/dist/hadoop-myriad.tgz #path: hdfs://20.26.4.42:9000/dist/myriad-executor-runnable-0.1.0.jar yarnEnvironment: #YARN_HOME: /usr/hadoop-2.7.0 YARN_HOME: hadoop-2.7.0 #this should be relative if nodeManagerUri is set JAVA_HOME: /usr/local/jdk1.7.0 #System dependent, but sometimes necessary mesosAuthenticationPrincipal: mesosAuthenticationSecretFilename: The configuration of yarn-site.xml is below. [root@csv-dcosstorage60 hadoop]# cat yarn-site.xml yarn.resourcemanager.hostname 20.26.28.246 yarn.nodemanager.aux-services mapreduce_shuffle,myriad_executor yarn.nodemanager.aux-services.mapreduce_shuffle.class org.apache.hadoop.mapred.ShuffleHandler yarn.nodemanager.aux-services.myriad_executor.class org.apache.myriad.executor.MyriadExecutorAuxService yarn.nm.liveness-monitor.expiry-interval-ms 2000 yarn.am.liveness-monitor.expiry-interval-ms 1 yarn.resourcemanager.nm.liveness-monitor.interval-ms 1000 yarn.resourcemanager.scheduler.class org.apache.myriad.scheduler.yarn.MyriadFairScheduler One can configure other schedulers as well from following list: org.apache.myriad.scheduler.yarn.MyriadCapacityScheduler, org.apache.myriad.scheduler.yarn.MyriadFifoScheduler yarn.scheduler.minimum-allocation-mb 0 yarn.scheduler.minimum-allocation-vcores 0 yarn.nodemanager.vmem-check-enabled false yarn.nodemanager.resource.cpu-vcores ${nodemanager.resource.cpu-vcores} yarn.nodemanager.resource.memory-mb ${nodemanager.resource.memory-mb} yarn.nodemanager.address ${myriad.yarn.nodemanager.address}
[jira] [Commented] (MYRIAD-254) can not autoscale with zero profile on myriad 0.2.0
[ https://issues.apache.org/jira/browse/MYRIAD-254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16020678#comment-16020678 ] Hongtaosun commented on MYRIAD-254: --- [~darinj]thanks for your replying. I just want to test Fine-grained Scaling. >From the document,My understanding is bellow: 1、I flexed up some zero nodemanagers. 2、I run MR jobs. 3、These nodemangers can automatic acquisition of resource from mesos. Is all right? I can't get through here。 Thank you. > can not autoscale with zero profile on myriad 0.2.0 > --- > > Key: MYRIAD-254 > URL: https://issues.apache.org/jira/browse/MYRIAD-254 > Project: Myriad > Issue Type: Bug > Components: Scheduler >Affects Versions: Myriad 0.2.0 > Environment: mesos 1.1.0 > docker 1.12.6 >Reporter: Hongtaosun > > [root@csv-dcosstorage60 hadoop]# hadoop jar > /usr/hadoop-2.7.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.0.jar > wordcount /wordcount/1.txt /wordcount/output > 17/03/30 17:11:13 INFO client.RMProxy: Connecting to ResourceManager at > /20.26.28.246:8032 > 17/03/30 17:11:14 INFO input.FileInputFormat: Total input paths to process : 1 > 17/03/30 17:11:14 INFO mapreduce.JobSubmitter: number of splits:1 > 17/03/30 17:11:14 INFO mapreduce.JobSubmitter: Submitting tokens for job: > job_1490859953345_0002 > 17/03/30 17:11:15 INFO mapreduce.JobSubmitter: Cleaning up the staging area > /tmp/hadoop-yarn/staging/root/.staging/job_1490859953345_0002 > java.io.IOException: > org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException: Invalid > resource request, requested memory < 0, or requested memory > max configured, > requestedMemory=512, maxMemory=0 > at > org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils.validateResourceRequest(SchedulerUtils.java:204) > at > org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.validateAndCreateResourceRequest(RMAppManager.java:385) > at > org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.createAndPopulateNewRMApp(RMAppManager.java:328) > at > org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.submitApplication(RMAppManager.java:281) > at > org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.submitApplication(ClientRMService.java:580) > at > org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.submitApplication(ApplicationClientProtocolPBServiceImpl.java:218) > at > org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:419) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043) > at org.apache.hadoop.mapred.YARNRunner.submitJob(YARNRunner.java:306) > at > org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:243) > at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290) > at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308) > at org.apache.hadoop.examples.WordCount.main(WordCount.java:87) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at > org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71) > at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144) > at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >