hadoop - HBase map/reduce dependency issue -

-

  1. overview

i developed rest api service based on resteasy framework. in service, store data hbase database. then, execute map/reduce process trigged condition(e.g. insert 1 record).

  1. requires

in map class, import third part libraries. not want package libraries war file. 

tablemapreduceutil.inittablemapperjob(hbaseinitializer.table_data,   // input hbase table name                                           scan,                      // scan instance control cf , attribute selection                                           lucenemapper.class,        // mapper                                           null,                      // mapper output key                                           null,                      // mapper output value                                            job); fileoutputformat.setoutputpath(job, new path("hdfs://master:9000/qin/lucenefile")); job.submit();
  1. problem

if package libraries in war file deploy jetty container, work well. if not package third part library war,but upload library hdfs , add them class path, not work. below

conf.set("fs.defaultfs","hdfs://master:9000");  filesystem hdfs = filesystem.get(conf);  path classpathfilesdir = new path("bjlibs");  filestatus[] jarfiles = hdfs.liststatus(classpathfilesdir);  (filestatus fs : jarfiles) {        path disqualified = new path(fs.getpath().touri().getpath());        distributedcache.addfiletoclasspath(disqualified, conf); } hdfs.close();

try tablemapreduceutil.addhbasedependencyjars()


Comments

Post a Comment

Popular posts from this blog

node.js - Mongoose: Cast to ObjectId failed for value on newly created object after setting the value -

-
this question has answer here: what's mongoose error cast objectid failed value xxx @ path “_id”? 7 answers even though has been asked many times because entity has no valid objectid field. i came across situation objectid set value can casted objectid still error. the schema: var serviceschema = parammongoose.schema({ servicename:{ type: parammongoose.schema.types.objectid , ref: 'servicenames',required:true } }); pseudo code: servicefromdb=new service({servicename:'some name'}); servicefromdb.servicename='000000000000000000000001'; servicefromdb.save(function(paramerror,paramdata){ if(paramerror){ console.log('but but...',servicefromdb,paramerror) } }); the output of code is: but but... { servicename: 000000000000000000000001, _id: 55079a90286f49280364f78b } { [casterror: cast objectid faile...
Read more

gradle error "Cannot convert the provided notation to a File or URI" -

-
i have defined 2 system properties in gradle.properties: systemprop.builddir=build systemprop.cfgdir=build\\cfg and have following task defined in build.gradle: task clean(group:'clean',description:'clean project') << { ant.sequential { delete(dir: system.properties.builddir) mkdir(dir: system.properties.builddir) delete(dir: system.properties.cfgdir) mkdir(dir: system.properties.cfgdir) } } this generates following error: execution failed task ':clean'. > cannot convert provided notation file or uri: {dir=build}. following types/formats supported: - string or charsequence path, e.g 'src/main/java' or '/usr/include' - string or charsequence uri, e.g 'file:/usr/include' - file instance. - uri or url instance. but equivalent block of code not generate error , works expected: task clean(group:'clean',description:'clean project') << { ...
Read more

ios - Possible to get UIButton sizeThatFits to work? -

-
i have been using method of resizing uibuttons depreciated, , not robust. , other reasons, want sizethatfits work uibuttons. i've read online, i'm not sure if should work (seems working some, not others, difference maybe between style, i'm using custom). here simple test code recreate issue (i put in viewdidload test, shouldn't matter, , real code part of large project): uibutton *btn = [uibutton buttonwithtype:uibuttontypecustom]; [btn settitle:@"this test long title need word wrap more single line when displayed on tiny ipod in portrait view." forstate:uicontrolstatenormal]; btn.titlelabel.linebreakmode = uilinebreakmodewordwrap; // depreciated - nothing replace it? cgrect r = btn.frame; r.origin.x = 0; r.origin.y = 0; r.size.width = 320; r.size.height = [btn.titlelabel.text sizewithfont:btn.titlelabel.font constrainedtosize:cgsizemake(r.size.width,100000) linebreakmode:btn.titlelabel.linebreakmode].height; // returns approx 86 , changes correctly ...
Read more