[backport to 2.x] backport PR 1329

[kaituo]

backport #1329 to 2.x

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[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 79.72%. Comparing base (f532a14) to head (3bdd5bf).
Report is 1 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...va/org/opensearch/timeseries/task/TaskManager.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #1330      +/-   ##
============================================
+ Coverage     79.57%   79.72%   +0.15%     
- Complexity     5623     5645      +22     
============================================
  Files           534      533       -1     
  Lines         23408    23411       +3     
  Branches       2322     2323       +1     
============================================
+ Hits          18626    18665      +39     
+ Misses         3673     3647      -26     
+ Partials       1109     1099      -10     

Flag	Coverage Δ
plugin	79.72% <60.00%> (+0.15%)	⬆️

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

Files with missing lines	Coverage Δ
...nsearch/forecast/rest/RestGetForecasterAction.java	82.60% <ø> (ø)
...nsport/SearchTopForecastResultTransportAction.java	2.47% <ø> (ø)
...g/opensearch/timeseries/ml/RealTimeInferencer.java	92.07% <100.00%> (+15.31%)	⬆️
...va/org/opensearch/timeseries/task/TaskManager.java	81.46% <0.00%> (-0.36%)	⬇️

... and 11 files with indirect coverage changes