weixiang1862 commented on PR #13608:
URL: https://github.com/apache/skywalking/pull/13608#issuecomment-3649094431

   > @weixiang1862 you mean the `filter: "{ tags -> tags.job_name == 
'banyandb-monitoring' }"` doesn't work? What's your otel config? 
   > And could you provide some origin metric samples?
   The filter works well, samples become empty after filtering.
   
   From my understanding, if the samples are empty, there is no need to execute 
the expression#run method, as it would introduce additional performance cost 
and could also lead to the warning logs above. Therefore, I added a check to 
terminate the execution of this analyzer early.
   
   


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