hadoop - In python MRJob, how to set up the option for tempory output directory -


i using mrjob run simple word count standard hadoop job:

python word_count.py -r hadoop hdfs:///path-to-my-data

this print error indicating can not create temporary directory temporary output:

stderr: mkdir: incomplete hdfs uri, no host: hdfs:///user/path-to-tmp-dir ... ... subprocess.calledprocesserror: command '['/opt/mapr/hadoop/hadoop-0.20.2/bin/hadoop', 'fs', '-mkdir', 'hdfs:///user/

assume can not create directory desired default mrjob. possible pass option mrjob through command line? option found far base_tmp_dir. in description mentioned "path put local temp dirs inside." "local" not looking temporary output directory supposed in hdfs. nevertheless, meant give try (:

python word_count.py --base-tmp-dir=./tmp/ data.txt

or 

python word_count.py -r hadoop --base-tmp-dir=hdfs:///some-path hdfs:///path-to-data

but failed mrjob complain there no such option:

word_count.py: error: no such option: --base-tmp-dir

the word_count.py standard 1 found here. may missing essential knowledge on mrjobj or may have go hadoop streaming.

mrjob calls hadoop binary when interacting hdfs. hadoop command needs know namenode located on network uris hdfs:///some-path don't require full host (something hdfs://your-namenode:9000/some-path. command figures out namenode reading configuration xml files.

there's lots of conflicting reports on internet which environment variable set, in environment running latest version of mrjob , apache hadoop 2.4.1, had set hadoop_prefix environment variables. can set command:

export hadoop_prefix=/path/to/your/hadoop

once set, you'll know set correctly if type:

ls $hadoop_prefix/etc/hadoop

and shows configuration xml files.

now run command. should work.


Comments

Post a Comment

Popular posts from this blog

javascript - RequestAnimationFrame not working when exiting fullscreen switching space on Safari -

request animation frame stops working when exiting fullscreen clicking on original space's safari window. fine if fullscreen mode canceled escape key or calling cancelfullscreen(). steps reproduce: open https://dl.dropboxusercontent.com/u/769042/prezi/safari-fullscreen.html click "draw raf", kittie appears click "fullscreen", go fullscreen click "draw raf", kittie appears go space original safari was, showing "click exit fullscreen mode", click anywhere, out fullscreen click "draw raf", nothing happens what handling click calling: window.requestanimationframe(draw); which draws on canvas context: function draw() { ctx.drawimage(img, math.random()*500|0, math.random()*400|0, 100, 100); } i checked .hidden , .visibilitystate, updated correctly. tested on osx 10.9.3, safari 7.0.4 (9537.76.4). has workaround/solution other switching old settimeout? this sounds webkit bug 88940 : using reque...
Read more

jsf - How to ajax update an item in the footer of a PrimeFaces dataTable? -

this visual of table have: +---------+------------+-------------------+ | header1 | header2 | header3 | +---------+------------+-------------------+ | row | input | calc'ed output | | row b | input b | calc'ed output b | | etc.. | etc.. | etc.. | +---------+------------+-------------------+ | total: total calc'ed output | +------------------------------------------+ and stripped-down code: <p:datatable id="mytable" value="#{mybean.somelist}" var="currentitem"> <p:column headertext="header1"> <h:outputtext value="#{currentitem.name}" /> </p:column> <p:column headertext="header2"> <pe:inputnumber value="#{currentitem.inputval}"> <p:ajax event="change" listener="#{mybean.changelistener}" update="outputval outputtotal...
Read more

django - CSRF verification failed. Request aborted. CSRF cookie not set -

error: reason given failure: csrf cookie not set. in general, can occur when there genuine cross site request forgery, or when django's csrf mechanism has not been used correctly. post forms, need ensure: browser accepting cookies. view function uses requestcontext template, instead of context. in template, there {% csrf_token %} template tag inside each post form targets internal url. if not using csrfviewmiddleware, must use csrf_protect on views use csrf_token template tag, accept post data. you're seeing section of page because have debug = true in django settings file. change false, , initial error message displayed. can customize page using csrf_failure_view setting. did find, nothing helped, must foolish(( my template <form method="post">{% csrf_token %} {% field in form %} <div class="control-group"> {{ field }} </div> {% endfor %} <input type=...
Read more