Bharath Vissapragada created HBASE-23259:
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Summary: Ability to run mini cluster using pre-determined
available random ports
Key: HBASE-23259
URL: https://issues.apache.org/jira/browse/HBASE-23259
Project: HBase
Issue Type: Sub-task
Components: test
Affects Versions: 3.0.0
Reporter: Bharath Vissapragada
Assignee: Bharath Vissapragada
As noted in the code reviews for HBASE-18095, we need the ability to run the
mini-cluster using a pre-determined set of random (and available) port numbers.
When I say pre-determined, I mean the test knows these ports even before
starting the mini cluster.
In short, the workflow is something like,
{noformat}
List<Ports> ports = getRandomAvailablePorts();
startMiniCluster(conf, ports);
{noformat}
The reason we need this is that certain configs introduced in HBASE-18095
depend on the ports on which the master is expected to serve the RPCs. While
that is known for regular deployments (like 16000 for master etc), it is
totally random in the mini cluster tests. So we need to know them before hand
for templating out the configs.
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