Reduce the impalad mem limit for the mini-cluster
Reduce the impalad mem limit for the mini-cluster

The default 80% process limit basically never gets used because there
are 3 impalads in the default mini-cluster which means 240% of the
system memory. Either impalad gets OOM killed or the system will have a
huge swap. Reducing the mini-cluster mem limit seems like a better
alternative.

Change-Id: I468355133fcceec12a8c7e8b4f46bf9c932aaf2c
Reviewed-on: http://gerrit.cloudera.org:8080/2472
Reviewed-by: Casey Ching <77bc9a9984e6786c5799d7a71768cf023120ef76@cloudera.com>
Tested-by: Internal Jenkins

kapilrastogi/Impala,kapilrastogi/Impala,kapilrastogi/Impala,kapilrastogi/Impala,kapilrastogi/Impala,kapilrastogi/Impala,kapilrastogi/Impala