[trafficserver] branch 9.0.x updated: fixup in HttpSM to only set [TS_MILESTONE_SERVER_CLOSE if TS_MILESTONE_SERVER_CONNECT has been set (#7259)

[zw...@apache.org]

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zwoop pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/trafficserver.git


The following commit(s) were added to refs/heads/9.0.x by this push:
     new ca074a7  fixup in HttpSM to only set [TS_MILESTONE_SERVER_CLOSE if TS_MILESTONE_SERVER_CONNECT has been set (#7259)
ca074a7 is described below

commit ca074a77ad4c8f716fc40061f19de10a5abc7c75
Author: Brian Olsen <bn...@gmail.com>
AuthorDate: Fri Nov 6 13:42:33 2020 -0700

    fixup in HttpSM to only set [TS_MILESTONE_SERVER_CLOSE if TS_MILESTONE_SERVER_CONNECT has been set (#7259)
    
    (cherry picked from commit ef18164093454f44384c5d5c8de2937a9edd6675)
---
 proxy/http/HttpSM.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index a247c47..18ef278 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -2951,7 +2951,13 @@ HttpSM::tunnel_handler_server(int event, HttpTunnelProducer *p)
 {
   STATE_ENTER(&HttpSM::tunnel_handler_server, event);
 
-  milestones[TS_MILESTONE_SERVER_CLOSE] = Thread::get_hrtime();
+  // An intercept handler may not set TS_MILESTONE_SERVER_CONNECT
+  // by default. Therefore we only set TS_MILESTONE_SERVER_CLOSE if
+  // TS_MILESTONE_SERVER_CONNECT is set (non-zero), lest certain time
+  // statistics are calculated from epoch time.
+  if (0 != milestones[TS_MILESTONE_SERVER_CONNECT]) {
+    milestones[TS_MILESTONE_SERVER_CLOSE] = Thread::get_hrtime();
+  }
 
   bool close_connection = false;