Hive: check what parameters are set in a session or for a job? -


we have few parameters in hive such following:

set hive.cbo.enable=true; set hive.compute.query.using.stats=true; set hive.stats.fetch.column.stats=true; set hive.stats.fetch.partition.stats=true; set mapreduce.job.running.map.limit=50;

how check parameters set(true)?? how many mappers particular job using can seen in gui, how can check status of other parameters? there way so??

just print set param_name;

hive> set hive.cbo.enable; hive.cbo.enable=true

or in query:

hive> select ${hiveconf:hive.cbo.enable}; ok true time taken: 1.042 seconds, fetched: 1 row(s)

more complex example (check boolean variable in case):

hive> select case when ${hiveconf:hive.cbo.enable} 1 else 0 end; ok 1 time taken: 0.041 seconds, fetched: 1 row(s) hive>

in shell:

hive_cbo_enable=$(hive -e 'select ${hiveconf:hive.cbo.enable} ;') echo "$hive_cbo_enable"

true

all params true:

hive -e 'set;' | grep "=true"  datanucleus.fixeddatastore=true datanucleus.rdbms.uselegacynativevaluestrategy=true dfs.block.access.token.enable=true dfs.client.block.write.replace-datanode-on-failure.enable=true dfs.client.mmap.enabled=true dfs.datanode.drop.cache.behind.reads=true dfs.datanode.drop.cache.behind.writes=true ...

Comments

Post a Comment

Popular posts from this blog

python - Selenium remoteWebDriver (& SauceLabs) Firefox moseMoveTo action exception -

while performing simple hover test on firefox through selenium (3.4.0) python bindings (3.4.3) using of available os in saucelabs (except linux, latest available firefox version old), performing following actionchain: hover = actionchains(driver) hover.move_to_element(elm_men_menu).perform() it throws following error: taceback: file [...] in testhover hover.perform() file "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/action_chains.py", line 80, in perform action() file "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/action_chains.py", line 290, in <lambda> command.move_to, {'element': to_element.id})) file "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 256, in execute self.error_handler.check_response(response) file "/usr/local/lib/python2.7/...
Read more

html - How to custom Bootstrap grid height? -

why bootstrap grid has height 591.067 ? did height came ? .main-post { padding: 20px; background-color: #fff; border: 1px solid #d8d8d8; margin-bottom: 100px; } .main-post .post-categories { margin-bottom: 10px } .main-post h3 { margin: 0 0 10px; color: #777; letter-spacing: -1px; font-weight: bold } .main-post .post-author, .main-post .post-date, .main-post .post-comments { font-size: 12px } .main-post img { display: block; margin: 10px 0; } .main-post .post-summary { line-height: 1.7; color: #888 } .main-post { color: #999 } <div class="col-sm-6"> <div class="main-post"> <h3 class="post-title"> <a href="#"> post title </a> </...
Read more

transpose - Maple isnt executing function but prints function term -

im using maple im in worksheetmode tried using maple input , 2d input , want transpose matrix a: := `<|>`(`<,>`(1, .5, -2), `<,>`(.5, 9/4+b, 5+3*b), `<,>`(-2, 5+3*b, 18+9*b+4*a)); b:= transpose(a); when exectute sheet dont translated values, there same input. matrix looks same input matrix plus function term. you can see picture in following link: why arent functions executed? meanwhile b:=a^+ doing right way , transposed matrix. other functions return function body instead needed values... if using 2d input mode (the default) space you've got between transpose , bracketed (b) interpreted multiplcation. rid of such space. also, either load package @ start of document like, with(linearalgebra): before calling transpose command package, or call it's full name like, linearalgebra:-transpose(b);
Read more