I found some unit cost a lot time on setup and teardown jetty servlet server.
if we can reuse servlet server make it stateless. may be we can save a lot
developer time.
eg.
In UT `org.apache.pulsar.broker.admin.TopicPoliciesTest`
there are 80 test case. each set && tearDown will cost 6 second
Hello pulsar community,
I've opened `PIP-232: Introduce thread monitor to check if thread is blocked
for long time.` to discuss.
For more details, please read the PIP at
https://github.com/apache/pulsar/issues/18985
I'm looking forward to hearing what you think.
Also the demo PR link at https://
