[Dubbo-#2162]Correct the reference retries default value 0 to 2

[tswstarplanet]

No description provided.

[ralf0131]

Hi, please check the CI failure first.

[codecov-io]

Codecov Report

Merging #2183 into master will decrease coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #2183      +/-   ##
============================================
- Coverage      54.3%   54.27%   -0.03%     
+ Complexity     5110     5109       -1     
============================================
  Files           559      559              
  Lines         24996    24996              
  Branches       4456     4456              
============================================
- Hits          13574    13567       -7     
- Misses         9387     9394       +7     
  Partials       2035     2035

Impacted Files	Coverage Δ	Complexity Δ
...ache/dubbo/remoting/p2p/support/AbstractGroup.java	45.45% <0%> (-11.37%)	7% <0%> (-1%)
...apache/dubbo/rpc/protocol/dubbo/FutureAdapter.java	58.06% <0%> (-6.46%)	3% <0%> (ø)
...ubbo/rpc/protocol/dubbo/ChannelWrappedInvoker.java	45.83% <0%> (-4.17%)	3% <0%> (ø)
.../dubbo/remoting/transport/netty4/NettyChannel.java	65% <0%> (-1.25%)	22% <0%> (-1%)
.../java/org/apache/dubbo/config/ReferenceConfig.java	50.7% <0%> (-0.71%)	43% <0%> (ø)
...bo/remoting/transport/netty/NettyCodecAdapter.java	54.68% <0%> (+1.56%)	3% <0%> (ø)	⬇️
...rpc/protocol/dubbo/telnet/InvokeTelnetHandler.java	54.43% <0%> (+2.53%)	12% <0%> (+1%)	⬆️
...org/apache/dubbo/rpc/filter/ActiveLimitFilter.java	88.88% <0%> (+5.55%)	6% <0%> (ø)	⬇️

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[diecui1202]

@tswstarplanet Does this PR need to merge to 2.6.x ?

[diecui1202]

#2162

[tswstarplanet]

@diecui1202 Sorry, should I determine what branch this commit to be merged ?

[diecui1202]

@tswstarplanet This is a bug, so I think it needs to be merged to master and 2.6.x.

You may need to file 2 PRs, one to master, and one to 2.6.x.

[diecui1202]

I think we can merge this PR first. And then start a new PR for 2.6.x

[diecui1202]

The PR for 2.6.x is #2303