hadoop - Unable to open iterator for alias -Pig -

-

i trying load xml file using xmlloader(piggybank) in pig, error saying "unable open iterator alias b". have written following code:

register /home/hdfs/spig/trunk/contrib/piggybank/java/piggybank.jar = load '/core-site.xml'using org.apache.pig.piggybank.storage.xmlloader('property') (x:chararray); b = foreach generate flatten(regex_extract_all(x,'<property>\\s*<name>(.*)  </name>\\s*<value>(.*)</value>\\s*<description>(.*)</description>\\s*</property>')); dump b;

the following log file:

pig stack trace

error 1066: unable open iterator alias a

org.apache.pig.impl.logicallayer.frontendexception: error 1066: unable open iterator alias @ org.apache.pig.pigserver.openiterator(pigserver.java:935) @ org.apache.pig.tools.grunt.gruntparser.processdump(gruntparser.java:754) @ org.apache.pig.tools.pigscript.parser.pigscriptparser.parse(pigscriptparser.java:376) @ org.apache.pig.tools.grunt.gruntparser.parsestoponerror(gruntparser.java:230) @ org.apache.pig.tools.grunt.gruntparser.parsestoponerror(gruntparser.java:205) @ org.apache.pig.tools.grunt.grunt.exec(grunt.java:81) @ org.apache.pig.main.run(main.java:631) @ org.apache.pig.main.main(main.java:177) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) @ java.lang.reflect.method.invoke(method.java:606) @ org.apache.hadoop.util.runjar.run(runjar.java:221) @ org.apache.hadoop.util.runjar.main(runjar.java:136) caused by: java.io.ioexception: job terminated anomalous status failed @ org.apache.pig.pigserver.openiterator(pigserver.java:927) ... 13 more

looks 1 of jobs might have failed.

caused by: java.io.ioexception: job terminated anomalous status failed

Comments

Post a Comment

Popular posts from this blog

python - Healpy: From Data to Healpix map -

-
Image
i have data grid rows represent theta (0, pi) , columns represent phi (0, 2*pi) , f(theta,phi) density of dark matter @ location. wanted calculate power spectrum , have decided use healpy. what can not understand how format data healpy use. if provide code (in python obvious reasons) or point me tutorial, great! have tried hand @ doing following code: #grid dimensions nrows*ncols (subject change) theta = np.linspace(0, np.pi, num=grid.shape[0])[:, none] phi = np.linspace(0, 2*np.pi, num=grid.shape[1]) nside = 512 print "pixel area: %.2f square degrees" % hp.nside2pixarea(nside, degrees=true) pix = hp.ang2pix(nside, theta, phi) healpix_map = np.zeros(hp.nside2npix(nside), dtype=np.double) healpix_map[pix] = grid but, when try execute code power spectrum. specifically, : cl = hp.anafast(healpix_map[pix], lmax=1024) i error: typeerror: bad number of pixels if point me tutorial or edit code great. more specifications: data in 2d np array , can change numrows/...
Read more

c - Bitwise operation with (signed) enum value -

-
i using enumerator values flags: typedef enum { = 0x00, b = 0x01u, // u has no influence, expected c = 0x02u, // u has no influence, expected ... } enum_name; volatile unsigned char* reg = someaddress; *reg |= b; according misra-c:2004 bitwise operations shall not done signed type. unfortunately, compiler iar use signed int (or short or char) underlying type of enums, , option can find relates size, not signedness ("--enum-is-int"). according iar c/c++ development guide arm , pages 169 , 211, can define type of enum s if enable iar language extensions ( -e command-line option, or project > options > c/c++ compiler > language > allow iar extensions in ide). in particular, should define "sentinel" value, make sure compiler chooses correct type. prefers signed types, , uses smallest possible integer type, sentinel should largest positive integer corresponding unsigned integer type can describe. example, typedef enum ...
Read more

xslt - Unnest parent nodes by child node -

-
in xml there items 0-n attributes , item should copied each attribute new item 1 attribute. given xml this: <?xml version="1.0" encoding="utf-8" ?> <items> <item> <name>a</name> <attributes> <attribute> <key>attribute1</key> <value>1</value> </attribute> </attributes> </item> <item> <name>b</name> </item> <item> <name>c</name> <attributes> <attribute> <key>attribute1</key> <value>5</value> </attribute> <attribute> <key>attribute2</key> <value>2</value> </attribute> <attribute> <key>attri...
Read more