Benjamin Mahler created MESOS-2940:
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Summary: Reconciliation is expensive for large numbers of tasks.
Key: MESOS-2940
URL: https://issues.apache.org/jira/browse/MESOS-2940
Project: Mesos
Issue Type: Improvement
Components: master
Reporter: Benjamin Mahler
Priority: Critical
We've observed that both implicit and explicit reconciliation are expensive for
large numbers of tasks:
{noformat: title=Explicit O(100,000) tasks: 70secs}
I0625 20:55:23.716320 21937 master.cpp:3863] Performing explicit task state
reconciliation for N tasks of framework F (NAME) at S@IP:PORT
I0625 20:56:34.812464 21937 master.cpp:5041] Removing task T with resources R
of framework F on slave S at slave(1)@IP:PORT (HOST)
{noformat}
{noformat: title=Implicit with O(100,000) tasks: 60secs}
I0625 20:25:22.310601 21936 master.cpp:3802] Performing implicit task state
reconciliation for framework F (NAME) at S@IP:PORT
I0625 20:26:23.874528 21921 master.cpp:218] Scheduling shutdown of slave S due
to health check timeout
{noformat}
Let's add a benchmark to see if there are any bottlenecks here, and to guide
improvements.
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