liferoad commented on code in PR #36610:
URL: https://github.com/apache/beam/pull/36610#discussion_r2460781121


##########
sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager.go:
##########
@@ -791,8 +791,7 @@ func reElementResiduals(residuals []Residual, inputInfo 
PColInfo, rb RunBundle)
                        panic("error decoding residual header:" + err.Error())
                }
                if len(ws) == 0 {
-                       slog.Error("reElementResiduals: sdk provided a windowed 
value header 0 windows", "bundle", rb)
-                       panic("error decoding residual header: sdk provided a 
windowed value header 0 windows")
+                       slog.Warn("reElementResiduals: sdk provided a windowed 
value header 0 windows", "bundle", rb)

Review Comment:
   do we need to mention this could cause data loss? or make the warning 
message more clear about why this happens?



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