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Posted to issues@trafficserver.apache.org by GitBox <gi...@apache.org> on 2022/03/18 15:54:40 UTC
[GitHub] [trafficserver] heavygale commented on issue #8720: Expected behaviour of the Compress Plugin
heavygale commented on issue #8720:
URL: https://github.com/apache/trafficserver/issues/8720#issuecomment-1072545119
The following data were collected by looking at the access.log for about 30 minutes (~500k requests) and filtering for vendor.js, a file that was delivered both compressed and uncompressed during this time period:
<br>
**uncompressed**: grep '\\[gzip|-'
```
37 TCP_REFRESH_MISS/200 http://❎❎❎:80/❎❎❎/vendor.js
```
Example log lines:
```
2022-03-18 12:24:00 44 ❎❎❎:32546 TCP_REFRESH_MISS/200 1650604 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|-|application/javascript; charset=UTF-8]
2022-03-18 12:24:06 24 ❎❎❎:32558 TCP_REFRESH_MISS/200 1650605 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|-|application/javascript; charset=UTF-8]
2022-03-18 12:24:33 117 ❎❎❎:57040 TCP_REFRESH_MISS/200 1650604 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|-|application/javascript; charset=UTF-8]
```
<br>
**compressed**: grep '\\[gzip|gzip'
```
190 TCP_MISS/200 http://❎❎❎:80/❎❎❎/vendor.js
29 TCP_REFRESH_MISS/200 http://❎❎❎:80/❎❎❎/vendor.js
3 ERR_CLIENT_READ_ERROR/200 http://❎❎❎:80/❎❎❎/vendor.js
2 TCP_MEM_HIT/200 http://❎❎❎:80/❎❎❎/vendor.js
```
Example log lines:
```
2022-03-18 12:22:52 169 ❎❎❎:50823 TCP_MISS/200 482453 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript cookieConsent=❎❎❎ Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0 [gzip|gzip|application/javascript; charset=UTF-8]
2022-03-18 12:22:53 132 ❎❎❎:39228 TCP_MISS/200 482573 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript cookieConsent=❎❎❎ Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0 [gzip|gzip|application/javascript; charset=UTF-8]
2022-03-18 12:22:54 146 ❎❎❎:65154 TCP_MISS/200 482411 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript cookieConsent=❎❎❎; cookieinfo=❎❎❎ Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0 [gzip|gzip|application/javascript; charset=UTF-8]
```
compresses log lines with TCP_REFRESH_MISS as found in uncomporessed:
```
2022-03-18 12:24:01 125 ❎❎❎:32532 TCP_REFRESH_MISS/200 482281 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|gzip|application/javascript; charset=UTF-8]
2022-03-18 12:24:29 96 ❎❎❎:55314 TCP_REFRESH_MISS/200 482449 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|gzip|application/javascript; charset=UTF-8]
2022-03-18 12:24:46 105 ❎❎❎:12734 TCP_REFRESH_MISS/200 482392 GET http://❎❎❎:80/❎❎❎/vendor.js - DIRECT application/javascript - Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 [gzip|gzip|application/javascript; charset=UTF-8]
```
<br>
Other files are also affected, vendor.js only serves as an example.
Common Log Format is set as follows:
`'%<cqtd> %<cqtt> %<ttms> %<{X-Forwarded-For}cqh>:%<{Remoteport}cqh> %<crc>/%<pssc> %<psql> %<cqhm> %<cquc> %<caun> %<phr> %<psct> %<{Cookie}cqh> %<{User-Agent}cqh> [%<{Accept-Encoding}cqh>|%<{Content-Encoding}psh>|%<{Content-Type}psh>]'`
Confidential information has been replaced by `❎❎❎`.
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