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Cadey Ratio 2017-01-25 12:20:00 -08:00
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@ -19,6 +19,8 @@ Questions
4. Our support team suggests that an average response time > 2 seconds is much too slow. How would you write a program that read the output file and printed "​HOST <host> IS TOO SLOW AT <TIMESTAMP>.​" if the last 5, 1 minute summaries for a host were greater than 2 seconds? 4. Our support team suggests that an average response time > 2 seconds is much too slow. How would you write a program that read the output file and printed "​HOST <host> IS TOO SLOW AT <TIMESTAMP>.​" if the last 5, 1 minute summaries for a host were greater than 2 seconds?
5. In the real world, we don’t have guarantees about clock monotonicity, and we see data arrive ​late_ . That is to say that there is no hard guarantee that, for ​L_ =request log line number and ​T_=the timestamp, ​T.sub(L-1)_ is chronologically less than ​T.sub(L)_. Describe a way in which your program could handle request logs that arrive up to ​N​ minutes late. What is the impact on memory usage, and “downstream” services such as the “SLOW RESPONSE TIME” program discussed above? 5. In the real world, we don’t have guarantees about clock monotonicity, and we see data arrive ​late_ . That is to say that there is no hard guarantee that, for ​L_ =request log line number and ​T_=the timestamp, ​T.sub(L-1)_ is chronologically less than ​T.sub(L)_. Describe a way in which your program could handle request logs that arrive up to ​N​ minutes late. What is the impact on memory usage, and “downstream” services such as the “SLOW RESPONSE TIME” program discussed above?
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