[improve] [broker] improve the restart broker can load bundle as one of the best brokers when selectBroker in LeastResourceUsageWithWeight

[Nicklee007]

Motivation

As the brokerAvgResourceUsageWithWeight stored the broker's history resource usage, if a broker is high load before restart, after the broker restart always show a high load history resource usage, and loadBalancerHistoryResourcePercentage = 0.9, which will cause the first few times the broker can not be select as best broker to load bundles. Only when selectBrokerForAssignment invoke few time's , the brokerAvgResourceUsageWithWeight could be neutralized by the current resourceUsage.
But bundles unload is not a frequently operator if not disable doLoadShedding,it will wait a long time; So if a broker restarted we can clean the brokers history resource usage to guaranty the no bundles or no msgRate broker can be select as the one of best brokers.

pulsar/pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/impl/LeastResourceUsageWithWeight.java

Lines 99 to 100 in bc94643

	historyUsage = historyUsage == null
	? resourceUsage : historyUsage * historyPercentage + (1 - historyPercentage) * resourceUsage;

Modifications

1. If the broker not own bundles or the msgRate is 0, use current resourceUsage to cover the historyUsage.
2. add some unit test.

Documentation

• doc-not-needed
  (Please explain why)

Matching PR in forked repository
PR in forked repository:Nicklee007#3

[github-actions]

The pr had no activity for 30 days, mark with Stale label.

[Nicklee007]

/pulsarbot run-failure-checks

[HQebupt]

LGTM

[codecov-commenter]

Codecov Report

Merging #16766 (3c0c603) into master (99e26f5) will increase coverage by 0.41%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master   #16766      +/-   ##
============================================
+ Coverage     44.79%   45.20%   +0.41%     
- Complexity    10026    10817     +791     
============================================
  Files           703      763      +60     
  Lines         68808    73575    +4767     
  Branches       7375     7912     +537     
============================================
+ Hits          30822    33260    +2438     
- Misses        34378    36592    +2214     
- Partials       3608     3723     +115     

Flag	Coverage Δ
unittests	45.20% <0.00%> (+0.41%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...loadbalance/impl/LeastResourceUsageWithWeight.java	0.00% <0.00%> (ø)
...pache/bookkeeper/mledger/impl/RangeSetWrapper.java	43.39% <0.00%> (-2.61%)	⬇️
...org/apache/bookkeeper/mledger/util/RangeCache.java	67.04% <0.00%> (-2.28%)	⬇️
...he/pulsar/broker/admin/v2/NonPersistentTopics.java	60.64% <0.00%> (-1.39%)	⬇️
...rg/apache/pulsar/client/impl/PulsarClientImpl.java	43.85% <0.00%> (-0.95%)	⬇️
...apache/pulsar/client/impl/AutoClusterFailover.java	69.44% <0.00%> (-0.56%)	⬇️
...he/pulsar/client/impl/MultiTopicsConsumerImpl.java	22.86% <0.00%> (-0.12%)	⬇️
...pulsar/metadata/impl/stats/MetadataStoreStats.java	88.88% <0.00%> (ø)
...g/apache/pulsar/metadata/api/NotificationType.java	100.00% <0.00%> (ø)
...ache/pulsar/metadata/api/MetadataStoreFactory.java	0.00% <0.00%> (ø)
... and 154 more