YarnSparkHadoopUtil
Related Docs:
class YarnSparkHadoopUtil
| package yarn
Add a path variable to the given environment map.
Add a path variable to the given environment map. If the map already contains this key, append the value to the existing value instead.
Escapes a string for inclusion in a command line executed by Yarn.
Escapes a string for inclusion in a command line executed by Yarn. Yarn executes commands using either
(Unix-based) bash -c "command arg1 arg2" and that means plain quoting doesn't really work.
The argument is enclosed in single quotes and some key characters are escaped.
(Windows-based) part of a .cmd file in which case windows escaping for each argument must be applied. Windows is quite lenient, however it is usually Java that causes trouble, needing to distinguish between arguments starting with '-' and class names. If arguments are surrounded by ' java takes the following string as is, hence an argument is mistakenly taken as a class name which happens to start with a '-'. The way to avoid this, is to surround nothing with a ', but instead with a ".
A single argument.
Argument quoted for execution via Yarn's generated shell script.
Getting the initial target number of executors depends on whether dynamic allocation is enabled.
Getting the initial target number of executors depends on whether dynamic allocation is enabled. If not using dynamic allocation it gets the number of executors requested by the user.
Set zero or more environment variables specified by the given input string.
Set zero or more environment variables specified by the given input string. The input string is expected to take the form "KEY1=VAL1,KEY2=VAL2,KEY3=VAL3".