Ethan Li created STORM-3518:
-------------------------------
Summary: configs for favored nodes and unfavored nodes should
support range of numbers
Key: STORM-3518
URL: https://issues.apache.org/jira/browse/STORM-3518
Project: Apache Storm
Issue Type: Improvement
Reporter: Ethan Li
Apache Storm has two configs for topologies to choose favored nodes and
unfavored nodes.
https://github.com/apache/storm/blob/master/storm-client/src/jvm/org/apache/storm/Config.java#L351
{code:java}
/**
* A list of host names that this topology would prefer to be scheduled on
(no guarantee is given though). This is intended for
* debugging only.
*/
@IsStringList
public static final String TOPOLOGY_SCHEDULER_FAVORED_NODES =
"topology.scheduler.favored.nodes";
/**
* A list of host names that this topology would prefer to NOT be scheduled
on (no guarantee is given though). This is intended for
* debugging only.
*/
@IsStringList
public static final String TOPOLOGY_SCHEDULER_UNFAVORED_NODES =
"topology.scheduler.unfavored.nodes";
{code}
It only support plain text currently, for example
{code:java}
host1.yahoo.com
host2.yahoo.com
hostA3.yahoo.com
hostA4.yahoo.com
{code}
It would be nice to be able to support ranges like
{code:java}
host[1-2].yahoo.com
hostA[3-4].yahoo.com
{code}
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