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cf0b6bc595
Adds a flag to start-impala-cluster.py (--enable_rm) to set up the
mini Impala cluster using Yarn and Llama. This hides a number of
flags that must be set on the impalads:
-enable_rm
-llama_addressess: set to the local llama service
-fair_scheduler_allocation_path: set to the path of the fair-scheduler.xml
in each node's hadoop conf directory
-cgroup_hierarchy_path: set to a path in the CPU cgroup hierarchy which
has the correct permissions for Impala to manage a child cgroup. The
path comes from cgroups.py.
The new module cgroups.py was added to contain cgroups-related
utilities. Right now it provides paths to the CPU controller
hierarchy root and a path within the hierarchy that can be used
for impalads (i.e. have the proper permissions, one for each
cluster node).
Change-Id: Ic2181ec5613c180f240958c84f885c6b136a64d4
Reviewed-on: http://gerrit.cloudera.org:8080/369
Tested-by: Internal Jenkins
Reviewed-by: Matthew Jacobs <mj@cloudera.com>