전체 글382 HDFS Errors Master Error Message1234567891011121314152013-07-15 13:36:59,258 ERROR org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:cse cause:java.io.IOException: File /tmp/hadoop-cse/mapred/system/jobtracker.info could only be replicated to 0 nodes, instead of 12013-07-15 13:36:59,259 INFO org.apache.hadoop.ipc.Server: IPC Server handler 7 on 9000, call addBlock(/tmp/hadoop-cs.. 2013. 7. 15. Ubuntu 10.04.4 LTS 서버 설치 후 했던 작업 리스트 (hostple.net) Update apt-get update serverlist Path : /etc/apt/sources.list Following is for the hostple.net Service User.eb http://ftp.daum.net//ubuntu/ lucid main restricteddeb-src http://ftp.daum.net//ubuntu/ lucid main restricted## Major bug fix updates produced after the final release of the## distribution.deb http://ftp.daum.net//ubuntu/ lucid-updates main restricteddeb-src http://ftp.daum.net//ubuntu/ .. 2013. 7. 10. Summary on HDFS (Cont.) 분산 처리 관련 업무 중 HDFS 관련 조사가 필요하여 관련 분석 내용을 참고차 기록한다. HDFS supports following read/write policiesreadrandom readsequential readwritesequential writeBlock size, the number of replica can be set for each file. 2013. 7. 9. Java jdom sample Sample XML12345678910111213 127.0.0.1 8080 127.0.0.2 8080 Java Code1234567891011121314151617181920212223242526272829303132333435363738394041424344454647import org.jdom.*;import org.jdom.output.Format;import org.jdom.output.XMLOutputter; class test{ public static final String SERVER_INFO_ELE = "serverinfo"; public static final String SERVER_ELE = "server"; public static final String ID_ATTR = "id.. 2013. 6. 3. 이전 1 ··· 5 6 7 8 9 10 11 ··· 96 다음