On 10/12/2024 20:22, Martynas Jusevičius wrote:
Hi, I recently noticed some weird "gaps" in the logs of my JAX-RS application running on Jersey running on Tomcat (running on Docker): 15:25:06,912 [http-nio-7070-exec-9] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:25:15,759 [http-nio-7070-exec-9] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns 15:25:46,078 [http-nio-7070-exec-3] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:25:57,826 [http-nio-7070-exec-3] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns 15:26:28,110 [http-nio-7070-exec-5] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:26:40,966 [http-nio-7070-exec-5] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns 15:27:11,162 [http-nio-7070-exec-8] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:27:29,535 [http-nio-7070-exec-8] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns there's nothing executing between those request filters, but there's a ~10 second or longer gap. Later on it seems to go away: 15:35:45,965 [http-nio-7070-exec-4] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:35:45,965 [http-nio-7070-exec-4] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns 15:37:16,405 [http-nio-7070-exec-7] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:37:16,405 [http-nio-7070-exec-7] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns 15:38:16,644 [http-nio-7070-exec-1] DEBUG ApplicationFilter:135 - Request URI <https://localhost:4443/ns> has not matched any lapp:Dataset 15:38:16,645 [http-nio-7070-exec-1] DEBUG AuthenticationFilter:98 - Authenticating request URI: https://localhost:4443/ns What could be the explanation for this? There's no heavy load, there's a single client writing/reading data to/from the app.
You need to take a series of thread dumps (I would suggest 3 thread dumps ~2 seconds apart) when this issue is happening.
As for a guess as to what might be going on, some sort of external lookup (DNS maybe?) that is timing out after ~10 seconds?
More detailed debug logging in your filters may also help identify what is happening.
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