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From "Chou, Peter" <pbc...@labs.att.com>
Subject RE: Issue with collapsed forwarding plugin, one CONN_FAIL
Date Tue, 15 May 2018 20:29:26 GMT
Evan,

I saw something similar with 304 instead of 303 when I tried something similar earlier. You
can check my e-mail in the mailing list archive -- it was sent on 6-23-2017.

BTW, the issues I described were reproducible on my dev machine using curl and bash/perl to
generate the requests. When we moved to our test environment with production level machines
and using Spirent to generate traffic they were not reproducible. Perhaps some kind of timing
issue in a low performance environment (the test machine and network were virtualized)?

Thanks,
Peter


From: Zelkowitz, Evan [mailto:Evan_Zelkowitz@comcast.com]
Sent: Tuesday, May 15, 2018 1:08 PM
To: users@trafficserver.apache.org
Subject: Issue with collapsed forwarding plugin, one CONN_FAIL

Ive been testing the collapsed forwarding plugin here by sending it random traffic, one request
with 10 duplicates of the same request.  One thing Im seeing is that a lot of the time one
of the requests out of those 10 will come back as an ERR_CONN_FAIL, but the pssc will be the
303 redirect.

I was just wondering if this was expected? Is it an issue or has anyone seen this?

Here is my output logging showing one of these instances:


1526413868.121 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=1 b=107782 sssc=200 sscl=107782 cfsc=FIN pfsc=FIN crc=TCP_MISS
phr=DIRECT pqsn=origin-test-cache-52.net uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.123 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.124 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.125 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.126 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.126 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.127 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=0 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.127 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=60 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.121 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=303 ttms=68 b=247 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=ERR_CONNECT_FAIL
phr=DIRECT pqsn=origin-test-cache-52.net uas="CUSTOMUAS/0.0.0" xmt="-"

1526413868.122 chi=test-ip phn=test-cache-09.net php=80 shn=origin-test-cache-52.net url=http://origin-test-cache-52.net/muxed-3000-prDi.tJZFQeIkXN_QYeLWwqAeRbJpH.ts<https://urldefense.proofpoint.com/v2/url?u=http-3A__origin-2Dtest-2Dcache-2D52.net_muxed-2D3000-2DprDi.tJZFQeIkXN-5FQYeLWwqAeRbJpH.ts&d=DwMGaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=JfqcxDQVxf52z7KRMHnPJFR6rzqRxWgyHDZIX7TjSr8&s=EPsP8XiJkBl_l6xb6tOps4CbppYIFuyPhMpKbnZg2OU&e=>
cqhm=GET cqhv=HTTP/1.1 pssc=200 ttms=108 b=107782 sssc=000 sscl=0 cfsc=FIN pfsc=FIN crc=TCP_MEM_HIT
phr=NONE pqsn=- uas="CUSTOMUAS/0.0.0" xmt="-"


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