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what is hadoop

WHAT IS HADOOP

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what is hadoop | mainframewizard.com Reviews
<META>
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WHAT IS HADOOP
<META>
KEYWORDS
1 WHAT IS HADOOP
2 APACHE HADOOP
3 COMMODITY HARDWARE
4 MAP REDUCE
5 YARN
6 YET ANOTHER RESOURCE NEGOTIATOR
7 DISTRIBUTED PROCESSING
8 DISTRIBUTED STORAGE
9 HADOOP DISTRIBUTED FILE SYSTEM
10 HDFS
CONTENT
Page content here
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PAGE
what is hadoop,forums,cics,cobol,mainframe jobs,tools,basics,list migrated datasets,removing duplicates,superce in batch,iebedit example,smallest program,rename clause,redefine clause,edited picture,accept and display,add verb,subtract verb,multiply verb
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what is hadoop | mainframewizard.com Reviews

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WHAT IS HADOOP

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1

Setup Single Node HADOOP cluster

http://www.mainframewizard.com/content/setup-single-node-hadoop-cluster

CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING CHARACTERS BY LITERAL BEFORE INITIAL LITERAL. Adding Primar...

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User account

http://www.mainframewizard.com/node/add/forum

CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING CHARACTERS BY LITERAL BEFORE INITIAL LITERAL. Adding Primar...

3

What is the purpose of command NRDAY in CA-7

http://www.mainframewizard.com/content/what-purpose-command-nrday-ca-7-0

CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING CHARACTERS BY LITERAL BEFORE INITIAL LITERAL. Adding Primar...

4

User account

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CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING CHARACTERS BY LITERAL BEFORE INITIAL LITERAL. Adding Primar...

5

WHAT IS BIG DATA

http://www.mainframewizard.com/content/what-is-big-data

What is big data. CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING LEADING SAPCES BY LITERAL. Adding Primary...

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Universo Cobol: Posibles Errores RC de un JCL

http://www.universocobol.com/2013/09/posibles-errores-rc-de-un-jcl.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Miércoles, 25 de septiembre de 2013. Posibles Errores RC de un JCL. Cuando ejecutamos un JCL y el proceso finaliza de forma errónea, en el TSO se mostrará el código de error correspondiente en la columna Max-RC. Este código nos va a indicar la gravedad del problema ocurrido en nuestro job. Una vez haya concluido la ejecución de nuestro JCL, tendremos que ir al SDSF del TSO y verificar cuál ha sido el código obtenido en la columna Max-RC. Como v...

universocobol.com universocobol.com

Universo Cobol: Error JCL ABEND S837 al ejecutar un Job

http://www.universocobol.com/2015/05/error-jcl-abend-s837-al-ejecutar-un-job.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 14 de mayo de 2015. Error JCL ABEND S837 al ejecutar un Job. El error JCL ABEND S837 es un retorno con el que nos vamos a encontrar de manera frecuente si trabajamos habitualmente con JCL Cobol. Si miramos la salida de uno de estos jobs fallidos, veremos que el detalle del problema es SYSTEM COMPLETION CODE=837 REASON CODE=00000008. Por tanto, la pregunta sería: ¿Cómo podemos solucionar este tipo de error? NO ACTIVE MODULE FOUND. 252 DA...

universocobol.com universocobol.com

Universo Cobol: Tipos de Ficheros Secuenciales Cobol (y 2)

http://www.universocobol.com/2014/06/tipos-de-ficheros-secuenciales-cobol-y-2.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 19 de junio de 2014. Tipos de Ficheros Secuenciales Cobol (y 2). Hace algunas semanas comenzamos a ver los tipos de ficheros que podíamos dar de alta en el sistema operativo ZOS mediante la herramienta ISPF (ver post Tipos de Ficheros Secuenciales Cobol - 1. Hoy trataremos de finalizar el repaso de todas las tipologías disponibles de Data Sets. Data set name type BASIC. Permite compresión, reduciendo así el espacio precisado para almace...

universocobol.com universocobol.com

Universo Cobol: Tipos de Ficheros VSAM

http://www.universocobol.com/2014/05/tipos-de-ficheros-vsam.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 15 de mayo de 2014. Tipos de Ficheros VSAM. Los ficheros VSAM (Virtual Storage Access Method) fueron un tipo de fichero muy específico creado en 1970 para tratar de mejorar el rendimiento de los ficheros secuenciales, que era la entidad que se usaba hasta entonces para almacenar información de forma masiva. En la actualidad, existen 4 tipos de ficheros VSAM: KSDS, RRDS, ESDS y LDS. 1º) Entry Sequenced Data Set (ESDS). Emplea dos subfich...

universocobol.com universocobol.com

Universo Cobol: Utilidad IEBCOPY para JCL

http://www.universocobol.com/2014/05/utilidad-iebcopy-para-jcl.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 22 de mayo de 2014. Utilidad IEBCOPY para JCL. Ya hemos hablado en post anteriores sobre algunas de las Utilidades estándar para el tratamiento de JCL que vienen definidas en el sistema operativo ZOS. Otra de ellas es la denominada IEBCOPY, que nos puede ser muy útil para realizar el trabajo con miembros particionados (ficheros PDS) o Library (ficheros PDSE). SYSUT1 DD DSN=LIBPR.JJ00.PROCLIB,DISP=SHR. DISP=(NEW,CATLG,DELETE),. Es el mie...

universocobol.com universocobol.com

Universo Cobol: Declaración de CURSOR sobre una tabla DB2

http://www.universocobol.com/2013/11/declaracion-de-cursor-sobre-una-tabla.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Martes, 5 de noviembre de 2013. Declaración de CURSOR sobre una tabla DB2. Cuando queramos recuperar registros secuencialmente de una tabla DB2 no nos bastará con ejecutar simplemente una sentencia Fetch sobre la misma. Previamente, tendremos que haber declarado un CURSOR que nos permita realizar el acceso a la misma. Indicando cuáles son los campos que queremos que sean recuperados de la tabla DB2 en el momento de su acceso. Para especificar l...

universocobol.com universocobol.com

Universo Cobol: Utilidad JCL ICEMAN para realizar SORT (y 2)

http://www.universocobol.com/2015/05/utilidad-jcl-iceman-para-realizar-sort.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 28 de mayo de 2015. Utilidad JCL ICEMAN para realizar SORT (y 2). Hace algunas semanas comenzamos a ver la funcionalidad de la utilidad JCL ICEMAN, herramienta empleada para la realización de SORT (ordenación) de registros de ficheros. Recordemos que, tal y como dijimos, se trata de la versión moderna de la utilidad clásica DFSORT. SORT FIELDS=(1,6,CH,A,8,25,CH,A),DYNALLOC=3390. Como vemos, la cláusula FIELDS del comando SORT viene acom...

universocobol.com universocobol.com

Universo Cobol: Utilidad IEBGENER para JCL

http://www.universocobol.com/2014/05/utilidad-iebgener-para-jcl.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 29 de mayo de 2014. Utilidad IEBGENER para JCL. Continuando con la revisión de las Utilidades JCL estándar de las que disponemos en el sistema operativo ZOS, hoy vamos a revisar la denominada IEBGENER. Este programa resulta de gran utilidad cuando necesitamos operar con ficheros secuenciales (Sequential Data Set). La utilidad IEBGENER sirve para realizar copias de ficheros secuenciales. SYSUT2 DD DSN=JJ00.FACTURA1.COPIAFAC,. Son las sen...

universocobol.com universocobol.com

Universo Cobol: Utilidad IEFBR14 para JCL

http://www.universocobol.com/2013/07/utilidad-iefbr14-para-jcl.html

Desarrollando en Cobol y Natural sobre Plataforma Mainframe. Jueves, 18 de julio de 2013. Utilidad IEFBR14 para JCL. La Utilidad IEFBR14 ( Branch Register 14. Es una de las utilidades MVS de las que podemos beneficiarnos cuando estamos operando con Ficheros en un JCL. Estas utilidades son, básicamente, programas estándar que realizar funciones predefinidas por el Sistema Operativo. Casos típicos de uso:. BORRADO DE FICHERO DE SALIDA. DD001JJ DD DSN=JJ00.JJ0002CL.SALIDA1,. Se incluye la sentencia EXEC con...

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what is hadoop

CONVERT VB TO FB FILE. List all datasets with High Level Qualifier. Date and timestamp in load object. Check for empty file. If the VSAM is empty then copy job abends. Copying files from Tapes to DASD. Low values to Spaces using SORT. Difference Between Catalog and Instream Procs. Maximum Exec Statements in a JCL. Initialize a filler in cobol. EVALUATE TRUE ALSO TRUE. GO TO DEPENDING ON. INSPECT REPLACING ALL SPACES BY LITERAL. INSPECT REPLACING CHARACTERS BY LITERAL BEFORE INITIAL LITERAL. Adding Primar...

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