There's something broken with your target if it cannot accept connections from two clients simultaneously. It is a trivial denial-of-service if one user opening a TCP connection to the server blocks all other users.
This isn't a problem with prometheus or blackbox_exporter; you need to debug the target application. On Thursday, 6 January 2022 at 06:15:03 UTC Vivek wrote: > Hi All, > > I want to monitor a socket program with Blackbox exporter's tcp_connect > module. > > I have observed that if the exporter connects first to the socket program > it can probe successfully as expected, but it also blocks any new > connection requests to the socket program which defeats the actual purpose > of socket program. > > However, if a third party client makes the first connection to the socket > program instead of Blackbox probe then the above behavior is not observed. > > Am I missing something? > > My goal is to just monitor whether TCP port is UP or DOWN by using > Blackbox exporter without affecting the actual functionality of the socket > program which is to listen for incoming client connections. > > Prometheus => prometheus-2.32.1.windows-amd64 > Blackbox Exporter => blackbox_exporter-0.19.0.windows-amd64 > > Please advise. > > Thanks in advance. > > > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to prometheus-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/a72e57d7-ba09-4080-a394-3ef1cff142ccn%40googlegroups.com.
