Hi, I have installed solr on my work server and I am currently connecting to it using OpenVPN. I indexed around 6K documents to test it out. I was experiencing a weird behaviour where queries are randomly very slow. At first, I suspected a connectivity issue, but after some exploration, it seems there is a constant delay after initial TCP/IP connection.
As it can be seen on the attached screenshot, TCP handshake takes 5ms, then solr takes 6 seconds to read the request, and it instantly returns the response. After the initial delay, all other requests over the same tcp/ip connection (which seems to be kept alive for 30 seconds) are processed normally (around 20 ms response time). I also made an python web application and it takes around 5 seconds for each query because it must open a new connection for every query. This behaviour isn't specific to any solr core, as even admin api endpoints work the same way. Is this a known issue? What steps can I take to debug this? Best regards, Yaşar Arabacı
