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Bigdata, Semantic IoT, Hadoop, NoSQL

Bigdata, Hadoop ecosystem, Semantic IoT등의 프로젝트를 진행중에 습득한 내용을 정리하는 곳입니다.
필요한 분을 위해서 공개하고 있습니다. 문의사항은 gooper@gooper.com로 메일을 보내주세요.


 

hdfs의 /user/hadoop폴더(hadoop계정으로 실행하는 경우임)가 없어서 발생하는 에러이므로
hadoop설치 계정으로 아래 문장을 실행한다(대부분 root)

hadoop fs -mkdir /user/hadoop
hadoop fs -chown hadoop:hadoop /user/hadoop 를 수행해준다.


그리고 마지막으로 변경사항이 반영되도록 stop-all.sh, start-all.sh을 수행한다.
 
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hadoop@master:~/working$ hadoop jar hadoop-examples-1.2.1.jar wordcount /user/hadoop/work/input/a.txt /user/hadoop/work/output/test1
14/07/05 17:24:03 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop cause:org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: Permission denied: user=hadoop, access=WRITE, inode="":root:supergroup:rwxr-xr-x
org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: Permission denied: user=hadoop, access=WRITE, inode="":root:supergroup:rwxr-xr-x
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:95)
        at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:57)
        at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:1459)
        at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:362)
        at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:126)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:942)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:550)
        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:82)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64)
        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.main(RunJar.java:160)
Caused by: org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.security.AccessControlException: Permission denied: user=hadoop, access=WRITE, inode="":root:supergroup:rwxr-xr-x
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:217)
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:197)
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:141)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5758)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkAncestorAccess(FSNamesystem.java:5731)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:2502)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:2469)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.mkdirs(NameNode.java:911)
        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.ipc.RPC$Server.call(RPC.java:587)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1432)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1428)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1426)
        at org.apache.hadoop.ipc.Client.call(Client.java:1113)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
        at com.sun.proxy.$Proxy1.mkdirs(Unknown Source)
        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.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:85)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62)
        at com.sun.proxy.$Proxy1.mkdirs(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:1457)
        ... 23 more
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129 [CDP7.1.7, Hive Replication]Hive Replication진행중 "The following columns have types incompatible with the existing columns in their respective positions " 오류 gooper 2023.12.27 7
128 [CDP7.1.7]Oozie job에서 ERROR: Kudu error(s) reported, first error: Timed out: Failed to write batch of 774 ops to tablet 8003f9a064bf4be5890a178439b2ba91가 발생하면서 쿼리가 실패하는 경우 gooper 2024.01.05 7
127 [CDP7.1.7]impala-shell수행시 간헐적으로 "-k requires a valid kerberos ticket but no valid kerberos ticket found." 오류 gooper 2023.11.16 11
126 임시 테이블에서 데이터를 읽어서 partitioned table에 입력하는 impala SQL문 예시 gooper 2023.11.10 16
125 [impala]insert into db명.table명 select a, b from db명.table명 쿼리 수행시 "Memory limit exceeded: Failed to allocate memory for Parquet page index"오류 조치 방법 gooper 2023.05.31 22
124 not leader of this config: current role FOLLOWER 오류 발생시 확인방법 총관리자 2022.01.17 23
123 kudu table와 impala(hive) table정보가 틀어져서 테이블을 읽지 못하는 경우(Error Loading Metadata) 조치방법 gooper 2023.11.10 25
122 [CDP7.1.7]Impala Query의 Memory Spilled 양은 ScratchFileUsedBytes값을 누적해서 구할 수 있다. gooper 2022.07.29 29
121 [Cloudera 6.3.4, Kudu]]Service Monitor에서 사용하는 metric중에 일부를 blacklist로 설정하여 모니터링 정보 수집 제외하는 방법 gooper 2022.07.08 31
120 Failed to write to server: (no server available): 총관리자 2022.01.17 32
119 AnalysisException: Incomplatible return type 'DECIMAL(38,0)' and 'DECIMAL(38,5)' of exprs가 발생시 조치 총관리자 2021.07.26 34
118 spark에서 hive table을 읽어 출력하는 예제 소스 총관리자 2017.03.09 35
117 [TLS/SSL]Kudu Tablet Server설정 총관리자 2022.05.13 35
116 spark에서 hive table을 읽어 출력하는 예제 소스 총관리자 2017.03.09 37
115 [KUDU] kudu tablet server여러가지 원인에 의해서 corrupted상태가 된 경우 복구방법 gooper 2023.03.28 37
114 [CDP7.1.7]impala-shell을 이용하여 kudu table에 insert/update수행시 발생하는 오류(Transport endpoint is not connected (error 107)) 발생시 확인할 내용 gooper 2023.11.30 41
113 spark 온라인 책자링크 (제목 : mastering-apache-spark) 총관리자 2016.05.25 48
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111 [hive] hive.tbls테이블의 owner컬럼값은 hadoop.security.auth_to_local에 의해서 filtering된다. 총관리자 2022.04.14 55

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