Consider handling the error returned by w.Close(). If an error occurs while closing
the gzip writer, it could lead to incomplete or corrupted data being written to the
profile.

cmd/mo-service/debug.go [442-444]

 if err := w.Close(); err != nil {
     logutil.GetGlobalLogger().Error("failed to close gzip writer", zap.Error(err))
     return
 }
 

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Consider adding a log message to indicate successful saving of the malloc profile.
This would provide better visibility into the process and confirm when the operation
completes successfully.

cmd/mo-service/debug.go [459-461]

 if err := globalEtlFS.Write(ctx, writeVec); err != nil {
     logutil.GetGlobalLogger().Error("failed to save malloc profile", zap.Error(err))
 } else {
     logutil.GetGlobalLogger().Info("malloc profile saved successfully", zap.String("path", profilePath))
 }
 

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Consider using a more specific context timeout for the file write operation. Three
minutes might be excessive for writing a profile, and a shorter timeout could help
identify performance issues more quickly.

cmd/mo-service/debug.go [457]

-ctx, cancel := context.WithTimeout(context.TODO(), time.Minute*3)
 ctx, cancel := context.WithTimeout(context.TODO(), time.Second*30)
 

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Consider adding a brief comment explaining the purpose of the WriteProfileData
function. This would improve code readability and maintainability.

pkg/common/malloc/default.go [149-151]

 // WriteProfileData writes the current malloc profile data to the provided io.Writer.
 func WriteProfileData(w io.Writer) error {
     return globalProfiler.Write(w)
 }
 

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