If you do not want to have Ambari manage the rack information
for hosts, you can use a custom topology script. To do this, you must create your own
topology script and manage distributing the script to all hosts.  | Note |
|---|
Ambari Web will
not display heatmaps by rack, because Ambari will have no access to host rack
information. |
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Browse to .
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Modify net.topology.script.file.name to your own custom topology
script.
For example: /etc/hadoop/conf/topology.sh .
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Distribute that topology script to your hosts.
You can now manage the rack mapping information for your script outside of
Ambari.
