Meng Zhu created MESOS-9722:
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Summary: Refactor the sorter interface to enable lazy sorting.
Key: MESOS-9722
URL: https://issues.apache.org/jira/browse/MESOS-9722
Project: Mesos
Issue Type: Improvement
Components: allocation
Reporter: Meng Zhu
Assignee: Meng Zhu
Currently, the only way for getting a sorted client from sorter is through:
{noformat}
vector<string> Sorter::sort()
{noformat}
This sorts all the active clients in the tree and returns all of them in a
single vector. This is inefficient if the callers end up only needing a few of
clients (e.g. when allocating one agent, only one or a few roles are allocated).
We could refactor the interface to return an iterator-like handle and then
callers can query the next the client in the sorting order. This would pave the
way for lazy sorting (i.e. only get the nth client) and improve performance.
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