execution

In Linux, how to execute Java jar file with external jar files?

荒凉一梦 提交于 2019-12-01 00:36:20
问题 In Linux, how to execute Java jar file with external jar files? 回答1: Either use the -cp flag: java -cp /path/to/somefolder/*.jar:/path/to/otherfolder/*.jar com.YourMainClass Or add a Class-Path: header to your jar's manifest (see Jigar's answer) Note to others who answered with java -jar <etc> : The -jar flag deactivates the standard -cp flag and CLASSPATH environment variable, because it retrieves the classpath from the JAR manifest. Any answer that combines -jar and either -cp or $CLASSPATH

differentiate driver code and work code in Apache Spark

笑着哭i 提交于 2019-11-30 19:55:46
In Apache Spark program how do we know which part of code will execute in driver program and which part of code will execute in worker nodes? With Regards It is actually pretty simple. Everything that happens inside the closure created by a transformation happens on a worker. It means if something is passed inside map(...) , filter(...) , mapPartitions(...) , groupBy*(...) , aggregateBy*(...) is executed on the workers. It includes reading data from a persistent storage or remote sources. Actions like count , reduce(...) , fold(...) are usually executed on both driver and workers. Heavy

Output compile time stamp in Visual C++ executable?

戏子无情 提交于 2019-11-30 17:25:00
How can I insert compilation timestamp information into an executable I build with Visual C++ 2005? I want to be able to output something like this when I execute the program: This build XXXX was compiled at dd-mm-yy, hh:mm. where date and time reflect the time when the project was built. They should not change with each successive call of the program, unless it's recompiled. Though not your exact format, DATE will be of the format Mmm dd yyyy, while TIME will be of the format hh:mm:ss. You can create a string like this and use it in whatever print routine makes sense for you: const char

Oracle query execution time

空扰寡人 提交于 2019-11-30 16:53:48
I would like to get the query execution time in Oracle. I don't want the time Oracle needs to print the results - just the execution time. In MySQL it is easy to get the execution time from the shell. How can I do this in SQL*Plus ? Adam Musch One can issue the SQL*Plus command SET TIMING ON to get wall-clock times, but one can't take, for example, fetch time out of that trivially. The AUTOTRACE setting, when used as SET AUTOTRACE TRACEONLY will suppress output, but still perform all of the work to satisfy the query and send the results back to SQL*Plus, which will suppress it. Lastly, one can

What happens when you overwrite a memory-mapped executable?

℡╲_俬逩灬. 提交于 2019-11-30 07:27:14
问题 Following the comments on one of my questions I'm intrigued to know what happens when one overwrites an executable. I need to check my understanding on the matter. Say I have /usr/bin/myprog . I run it and so the OS loads /usr/bin/myprog , probably via http://en.wikipedia.org/wiki/Memory-mapped_file#Common_uses. For whatever reason that process remains in memory and I decide actually I've fixed a bug and I overwrite /usr/bin/myprog . So, as far as I understand it: If an instance of myprog is

How can I set the current line of execution in the eclipse java debugger?

喜夏-厌秋 提交于 2019-11-30 01:26:12
I want to force the current execution line to a specific line in the same function, possibly skipping intermediate lines. All my old school debuggers had this feature, but I can't find it in eclipse. Is there a way to do it without changing code? The first two answers seem to miss the topic, unless it is me not understanding the question. My understanding, a feature I searched myself, is that you want to skip a number of lines (when stepping in code) and set the program counter (to take assembly vocabulary) to the given line. It might be interesting to skip some costly object creation, see

Output compile time stamp in Visual C++ executable?

生来就可爱ヽ(ⅴ<●) 提交于 2019-11-30 00:55:00
问题 How can I insert compilation timestamp information into an executable I build with Visual C++ 2005? I want to be able to output something like this when I execute the program: This build XXXX was compiled at dd-mm-yy, hh:mm. where date and time reflect the time when the project was built. They should not change with each successive call of the program, unless it's recompiled. 回答1: Though not your exact format, DATE will be of the format Mmm dd yyyy, while TIME will be of the format hh:mm:ss.

Oracle query execution time

浪尽此生 提交于 2019-11-30 00:09:27
问题 I would like to get the query execution time in Oracle. I don't want the time Oracle needs to print the results - just the execution time. In MySQL it is easy to get the execution time from the shell. How can I do this in SQL*Plus ? 回答1: One can issue the SQL*Plus command SET TIMING ON to get wall-clock times, but one can't take, for example, fetch time out of that trivially. The AUTOTRACE setting, when used as SET AUTOTRACE TRACEONLY will suppress output, but still perform all of the work to

Bash Script Not Executing in Cron Correctly

老子叫甜甜 提交于 2019-11-29 18:03:37
So, I have a bash script that should pipe the output of ifconfig to a text file on the hour, every hour. As many people seem to have encountered, this script does not function properly when used by cron. However, most of the fixes for this that I have seen do not seem to be applicable in my case. I have all paths explicitly stated, the script has execute permissions, and there is a newline at the end of the cron file. creatively enough, my scrip, ip.sh, contains: ifconfig > /home/drake/Dropbox/maintenance_scripts/ip.txt the cron entry is: 0 * * * * /home/drake/Dropbox/maintenance_scripts/ip.sh

Wamp Server isn't executing php code

﹥>﹥吖頭↗ 提交于 2019-11-29 04:44:44
My php code is not executed when I access the root directory with http://localhost:8080/sample.html The code I want to run is: <?php phpinfo(); ?> and I tried also the following: Restarted all services several times including putting Wamp Server online Changing the listening port in httpd.conf to 8080 and configuring Skype to accept 80 and 443 ports Could it be that some firefox extensions are blocking php-execution? All I get is the php code exactly like I wrote it. You're trying to execute PHP in an ".html" file. You have to edit the PHP handler in the apache config to make it process