topic HTTP Monitor - Connection keep alive or close by default? in Synthetic Monitoring https://community.dynatrace.com/t5/Synthetic-Monitoring/HTTP-Monitor-Connection-keep-alive-or-close-by-default/m-p/252063#M2538 <P>Hello,</P><P>I have 2 questions concerning HTTP monitors :</P><P>- HTTP calls are all HTTP 1.1 or not?<BR />- By default, connection are closed in HTTP Monitors?</P><P><BR />I understand why, but, as persistent connections are the default behavior of any connection in HTTP 1.1, the behavior is different :</P><P>recently we had issue with one HTTP Monitor, which is calling only one url.<BR />Suddenly, every time, we got a connection refused.<BR />I created its brower clickpath version: no error.<BR />We discovered at the end, that it was due to a connection closed.<BR />I added in the request header, connection: keep-alive and it was ok.</P><P>Thank you</P><P>Sabine</P> Wed, 31 Jul 2024 08:18:46 GMT SabineR 2024-07-31T08:18:46Z HTTP Monitor - Connection keep alive or close by default? https://community.dynatrace.com/t5/Synthetic-Monitoring/HTTP-Monitor-Connection-keep-alive-or-close-by-default/m-p/252063#M2538 <P>Hello,</P><P>I have 2 questions concerning HTTP monitors :</P><P>- HTTP calls are all HTTP 1.1 or not?<BR />- By default, connection are closed in HTTP Monitors?</P><P><BR />I understand why, but, as persistent connections are the default behavior of any connection in HTTP 1.1, the behavior is different :</P><P>recently we had issue with one HTTP Monitor, which is calling only one url.<BR />Suddenly, every time, we got a connection refused.<BR />I created its brower clickpath version: no error.<BR />We discovered at the end, that it was due to a connection closed.<BR />I added in the request header, connection: keep-alive and it was ok.</P><P>Thank you</P><P>Sabine</P> Wed, 31 Jul 2024 08:18:46 GMT https://community.dynatrace.com/t5/Synthetic-Monitoring/HTTP-Monitor-Connection-keep-alive-or-close-by-default/m-p/252063#M2538 SabineR 2024-07-31T08:18:46Z Re: HTTP Monitor - Connection keep alive or close by default? https://community.dynatrace.com/t5/Synthetic-Monitoring/HTTP-Monitor-Connection-keep-alive-or-close-by-default/m-p/252625#M2543 <P>Yes we close the connection and you need to add the keep-alive header in this case.</P> <P>&nbsp;</P> Tue, 06 Aug 2024 08:26:32 GMT https://community.dynatrace.com/t5/Synthetic-Monitoring/HTTP-Monitor-Connection-keep-alive-or-close-by-default/m-p/252625#M2543 hadeer_diwan 2024-08-06T08:26:32Z