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Name node is in safe mode. Not able to leave
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In order to forcefully let the namenode leave safemode, following command should be executed:
bin/hadoop dfsadmin -safemode leave
You are getting Unknown command error for your command as -safemode isn't a sub-command for hadoop fs, ...
What is the minimum I have to do to create an RPM file?
...ld better to do a TRUE RPM if you can. But i digress.
So the a basic step for packaging your (binary) program is as follow - in which i suppose the
program is toybinprog with version 1.0, have a conf to be installed in /etc/toybinprog/toybinprog.conf and have a bin to be installed in /usr/bin calle...
How to check that an element is in a std::set?
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The typical way to check for existence in many STL containers such as std::map, std::set, ... is:
const bool is_in = container.find(element) != container.end();
share
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Why does Razor _layout.cshtml have a leading underscore in file name?
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Razor was developed for ASP.NET Web Pages (WebMatrix), which doesn't have the same sort of protection built in regarding Views folders and Routing that you get within MVC. Since layout pages in Web Pages are not intended to be served directly, t...
Determine function name from within that function (without using traceback)
...ods in @RoshOxymoron's answer as well as numerical indexing into the stack for @neuro/@AndreasJung's answer: print(inspect.currentframe().f_code.co_name)
– hobs
Mar 17 '15 at 21:43
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Remove HTML Tags in Javascript with Regex
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Try this, noting that the grammar of HTML is too complex for regular expressions to be correct 100% of the time:
var regex = /(<([^>]+)>)/ig
, body = "<p>test</p>"
, result = body.replace(regex, "");
console.log(result);
If you're willing to use a libra...
Iterating through a JSON object
...us key/value pairs, all strings. When you do json_object[0], you're asking for the first dict in the list. When you iterate over that, with for song in json_object[0]:, you iterate over the keys of the dict. Because that's what you get when you iterate over the dict. If you want to access the value ...
How to terminate a Python script
...7, and produce undefined results
otherwise. Some systems have a convention for assigning specific
meanings to specific exit codes, but these are generally
underdeveloped; Unix programs generally use 2 for command line syntax
errors and 1 for all other kind of errors. If another type of object
is pas...
Auto layout constraints issue on iOS7 in UITableViewCell
...leView cells and I'm correctly defining the cell sizes in tableView:heightForRowAtIndexPath:
10 Answers
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Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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