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yarn is part of hadoop script

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tqchen 2015-01-11 21:28:13 -08:00
parent a120edc56e
commit 6b651176a3
2 changed files with 2 additions and 6 deletions
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5
guide/README.md
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@ -197,13 +197,10 @@ Rabit is a portable library that can run on multiple platforms.
* You can use [../tracker/rabit_hadoop.py](../tracker/rabit_hadoop.py) to run rabit programs on hadoop
* This will start n rabit programs as mappers of MapReduce
* Each program can read its portion of data from stdin
* Yarn is highly recommended, since Yarn allows specifying number of cpus and memory of each mapper:
* Yarn(Hadoop 2.0 or higher) is highly recommended, since Yarn allows specifying number of cpus and memory of each mapper:
- This allows multi-threading programs in each node, which can be more efficient
- An easy multi-threading solution could be to use OpenMP with rabit code
#### Running Rabit on Yarn
* To Be modified from [../tracker/rabit_hadoop.py](../tracker/rabit_hadoop.py)
#### Running Rabit using MPI
* You can submit rabit programs to an MPI cluster using [../tracker/rabit_mpi.py](../tracker/rabit_mpi.py).
* If you linked your code against librabit_mpi.a, then you can directly use mpirun to submit the job

3
tracker/rabit_hadoop.py
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@ -89,8 +89,7 @@ assert out[0] == 'Hadoop', 'cannot parse hadoop version string'
hadoop_version = out[1].split('.')
use_yarn = int(hadoop_version[0]) >= 2
if not use_yarn:
print 'Current Hadoop Version is %s' % out[1]
print 'Current Hadoop Version is %s' % out[1]
def hadoop_streaming(nworker, worker_args, use_yarn):
fset = set()