fix: fix non-unique instance id in the node

[wangxye]

fixes: #787

change:

1. fix non-unique instance id in the node;

[codecov]

Codecov Report

Merging #798 (22cb0b5) into main (2f5f5ce) will increase coverage by 0.02%.
Report is 1 commits behind head on main.
The diff coverage is 66.66%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #798      +/-   ##
============================================
+ Coverage     57.60%   57.62%   +0.02%     
- Complexity     1229     1231       +2     
============================================
  Files           132      132              
  Lines          8107     8109       +2     
  Branches        744      745       +1     
============================================
+ Hits           4670     4673       +3     
  Misses         3034     3034              
+ Partials        403      402       -1     

Components	Coverage Δ
RocketMQ Broker	∅ <ø> (∅)
RocketMQ Common	5.80% <ø> (ø)
RocketMQ Controller	55.13% <66.66%> (-0.01%)	⬇️
RocketMQ Proxy	42.73% <ø> (+0.12%)	⬆️
RocketMQ Store	76.89% <ø> (ø)
RocketMQ Stream	∅ <ø> (∅)
RocketMQ Metadata	35.44% <ø> (ø)

Files	Coverage Δ
.../controller/server/store/DefaultMetadataStore.java	65.60% <66.66%> (-0.09%)	⬇️

... and 1 file with indirect coverage changes