System configuration: OS: Ubuntu 14.04LTS java version "1.7.0_80", Java(TM) SE Runtime Environment (build 1.7.0_80-b15), Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode) kafka version: kafka_2.10-0.8.1.1 No. of brokers: 4
All, We're experiencing a weird tcp connection leakage situation in which if rough kafka clients do not properly close their producers after producing messages the brokers leak connections. On broker side, we see these connections continuously grow in numbers in ESTABLISHED state, e.g., tcp6 0 0 <broker_ip>:9092 <client_ip>:46864 ESTABLISHED 14060/java Even if we shutdown the clients completely the connections remain in ESTABLISHED state and would not go away. We tried forced full garbage collection on the brokers, but still the connections won't go away. This is quite weird and I'll appreciate if someone faced similar issues and figured out a way to cleanup the dead producer connections without restarting the brokers. Thanks and I'll really appreciate if you can provide some help. jhooda
