Presently the node role assignment is only automatic. Auto selection
makes the assumption every node is identical however in many deployments
a deployer may want to assign node roles to specific hardware thereby
optimizing resources and improving general performance. This change
adds and documents the ability to set the node roles within an ansible
inventory.
Change-Id: I22a2b636cb1441f17e575439b55ca64f9c7b0336
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
* Implements G1 GC optionally. The variable `elastic_g1gc_enabled` has
been added with a default of false. If this option is set true and the
system has more than 4GiB of RAM G1GC will be enabled.
* Adds new thread options
* Better constraints coordination nodes
* Interface recover speed has been limited
* Buffer size is now set correctly
* Serialize elk deployment so that upgrades are non-impacting
Change-Id: I89224eeaf4ed29c3bb1d7f8010b69503dbc74e11
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
