[Q/A][Java SDK (Component)] dubbo repeatedly established and disconnected connections ?

[uzong]

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Apache Dubbo Component

Java SDK (apache/dubbo)

Details

pod to manage Java applications. I upgraded dubbo from 3.0.10 to 3.2.16; it is a service provider. When I restarted the application, I found a client. The IP is: 10.0.7.1. It keeps connecting to my application (10.0.7.239) and disconnecting. The client keeps changing ports.
What is this mechanism?
How to solve this problem (the most outrageous thing is that 10.0.7.1 is not found in the entire cluster)

About 5 seconds to reestablish the connection

==== detail log ===========

2025-02-18 07:35:17.599 INFO 1 --- [rverWorker-15-4] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:39602 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:17.600 INFO 1 --- [rverWorker-15-4] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:39602 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:22.599 INFO 1 --- [rverWorker-15-5] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:40028 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:22.600 INFO 1 --- [rverWorker-15-5] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:40028 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:27.602 INFO 1 --- [rverWorker-15-1] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:40576 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:27.602 INFO 1 --- [rverWorker-15-1] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:40576 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:32.600 INFO 1 --- [rverWorker-15-2] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41012 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:32.600 INFO 1 --- [rverWorker-15-2] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41012 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:37.599 INFO 1 --- [rverWorker-15-3] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41468 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:37.600 INFO 1 --- [rverWorker-15-3] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41468 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:42.600 INFO 1 --- [rverWorker-15-4] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41880 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:42.600 INFO 1 --- [rverWorker-15-4] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:41880 -> /10.0.7.231:20880 is disconnected., dubbo version: 3.2.16, current host: 10.0.7.231
2025-02-18 07:35:47.600 INFO 1 --- [rverWorker-15-5] [] [] o.a.d.r.t.netty4.NettyServerHandler : [DUBBO] The connection of /10.0.7.1:42296 -> /10.0.7.231:20880 is established., dubbo version: 3.2.16, current host: 10.0.7.231
.......

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[AlbumenJ]

Looks like there is a health checker

[uzong]

Yes, I found the answer, it was the pod liveness probe, I configured TCP and the port was consistent with dubbo port 20880