https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119685#M12603 <P>Did you checked logs on ActiveGate? There should be more detailed message about reason of connection lost. In most cases this may be issue in your network. Maybe somebody unfortunately changed network rule? ActiveGate doesn’t store data, it’s in general proxy. There is some buffer as I know but not for an hour. </P><P>Sebastian </P><BR /> Sat, 15 Jun 2019 15:59:52 GMT skrystosik 2019-06-15T15:59:52Z https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119684#M12602 <P>Hello</P> <P>&nbsp;</P> <P>The activeGates for a customer environment could not reach the managed-cluster for more than 1 hour. When the connection was restored we lost all the monitoring data within that time frame,</P> <P>&nbsp;</P> <P>Anybody suggestions about what could be the cause?</P> <P>&nbsp;</P> <P>KR Henk</P> <P>&nbsp;</P> Tue, 14 Dec 2021 12:40:49 GMT https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119684#M12602 henk_stobbe 2021-12-14T12:40:49Z https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119685#M12603 <P>Did you checked logs on ActiveGate? There should be more detailed message about reason of connection lost. In most cases this may be issue in your network. Maybe somebody unfortunately changed network rule? ActiveGate doesn’t store data, it’s in general proxy. There is some buffer as I know but not for an hour. </P><P>Sebastian </P><BR /> Sat, 15 Jun 2019 15:59:52 GMT https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119685#M12603 skrystosik 2019-06-15T15:59:52Z https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119686#M12604 <P>Hi Sebastian,</P><P><BR /></P><P>lots of community answers about Ag storing data )-; your answer makes more sense. The only question then would be why did the Ag not tell the agents to stop sending data.</P><P>(underliying the issue was a firewall issue)</P><P>I will have a look at the log’s to see if there is extra info to be found.</P><P>What ever the reason, it does not sound that this is expected behavoir.</P><P><BR /></P><P>thank for you reaction.</P><P><BR /></P><P>KR Henk</P><BR /> Sun, 16 Jun 2019 07:24:46 GMT https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119686#M12604 henk_stobbe 2019-06-16T07:24:46Z https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119687#M12605 <P>AG not saying such things to agents. Agent has some buffer but it is not very big (mostly fo 20 minutes, depends on amount of traffic). If it can't send them because of AG is unavailable, data are overwritten. </P><P>Sebastien </P><BR /> Sun, 16 Jun 2019 09:48:09 GMT https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119687#M12605 skrystosik 2019-06-16T09:48:09Z https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119688#M12606 <DIV class="fr-view clearfix"><P><A href="https://community.dynatrace.com/questions/209157/does-oneagent-or-active-gates-retain-data-when-not.html" rel="noopener noreferrer" target="_blank">https://community.dynatrace.com/questions/209157/does-oneagent-or-active-gates-retain-data-when-not.html</A></P><P>Here you have info about cache'ing options of OneAgent and ActiveGate.</P><P>Sebastian </P><BR /></DIV> Mon, 16 Oct 2023 14:42:50 GMT https://community.dynatrace.com/t5/Open-Q-A/activateGates-unable-to-connect-to-managed-cluster-monitoring/m-p/119688#M12606 skrystosik 2023-10-16T14:42:50Z