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Posted to issues@trafficserver.apache.org by GitBox <gi...@apache.org> on 2022/12/19 11:21:08 UTC
[GitHub] [trafficserver] xq2248 opened a new issue, #9260: [question]How to calculate the proportion of three kinds of traffic？
xq2248 opened a new issue, #9260:
URL: https://github.com/apache/trafficserver/issues/9260
Service traffic includes three types:
1. cached content and memory hit
2. cached contents, memory misses, but disk hits
3. not cached contents which will be downloaded back to the source, and be transimited to the users at the same time
How to calculate the proportion of three kinds of traffic?
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[GitHub] [trafficserver] xq2248 commented on issue #9260: [question]How to calculate the proportion of three kinds of traffic？
Posted by "xq2248 (via GitHub)" <gi...@apache.org>.
xq2248 commented on issue #9260:
URL: https://github.com/apache/trafficserver/issues/9260#issuecomment-1432677302
Yes, it helps a lot, thanks!
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[GitHub] [trafficserver] bneradt commented on issue #9260: [question]How to calculate the proportion of three kinds of traffic？
Posted by GitBox <gi...@apache.org>.
bneradt commented on issue #9260:
URL: https://github.com/apache/trafficserver/issues/9260#issuecomment-1376573168
Just following up: does this suggestion seem like something that would work for you, @xq2248?
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[GitHub] [trafficserver] bneradt commented on issue #9260: [question]How to calculate the proportion of three kinds of traffic？
Posted by GitBox <gi...@apache.org>.
bneradt commented on issue #9260:
URL: https://github.com/apache/trafficserver/issues/9260#issuecomment-1358688719
I would do this via a transaction log configured with the `crc` log field:
https://docs.trafficserver.apache.org/en/latest/admin-guide/logging/formatting.en.html#admin-logging-fields-cache
Your logs wil contain (ordered respectively to your three scenarios):
1. `TCP_MEM_HIT` for responses served out of the RAM cache.
2. `TCP_HIT` for responses served out of the cache.
3. `TCP_MISS` for responses not in the cache. You can combine this the origin response status (`sssc`) to verify positive HTTP responses.
The percentage of these responses can then be post-processed from this transaction log.
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