我使用3节点kafka连接群集将数据从源写入kafka主题以及从主题到目标。在分布式模式下一切正常，但当其中一个工作程序停止然后重新启动时，我收到以下消息。
[2017-09-13 23:48:44,519] WARN Catching up to assignment's config offset. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:741)
[2017-09-13 23:48:44,519] INFO Current config state offset 5 is behind group assignment 20, reading to end of config log (org.apache.kafka.connect.runtime.distributed.DistributedHerder:785)
[2017-09-13 23:48:45,018] INFO Finished reading to end of log and updated config snapshot, new config log offset: 5 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:789)
[2017-09-13 23:48:45,018] INFO Current config state offset 5 does not match group assignment 20. Forcing rebalance. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:765)
[2017-09-13 23:48:45,018] INFO Rebalance started (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1187)
[2017-09-13 23:48:45,018] INFO Wasn't unable to resume work after last rebalance, can skip stopping connectors and tasks (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1219)
[2017-09-13 23:48:45,018] INFO (Re-)joining group connect-cluster (org.apache.kafka.clients.consumer.internals.AbstractCoordinator:432)
[2017-09-13 23:48:45,023] INFO Successfully joined group connect-cluster with generation 38 (org.apache.kafka.clients.consumer.internals.AbstractCoordinator:399)
[2017-09-13 23:48:45,023] INFO Joined group and got assignment: Assignment{error=0, leader='connect-1-e51c1e8b-c95a-406b-8c56-2a0d4fc432f6', leaderUrl='http://10.10.10.10:8083/', offset=20, connectorIds=[], taskIds=[oracle_jdbc_sink_test-0]} (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1166)
[2017-09-13 23:48:45,023] WARN Catching up to assignment's config offset. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:741)
[2017-09-13 23:48:45,023] INFO Current config state offset 5 is behind group assignment 20, reading to end of config log (org.apache.kafka.connect.runtime.distributed.DistributedHerder:785)
[2017-09-13 23:48:45,535] INFO Finished reading to end of log and updated config snapshot, new config log offset: 5 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:789)
[2017-09-13 23:48:45,535] INFO Current config state offset 5 does not match group assignment 20. Forcing rebalance. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:765)
[2017-09-13 23:48:45,535] INFO Rebalance started (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1187)
[2017-09-13 23:48:45,535] INFO Wasn't unable to resume work after last rebalance, can skip stopping connectors and tasks (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1219)
[2017-09-13 23:48:45,535] INFO (Re-)joining group connect-cluster (org.apache.kafka.clients.consumer.internals.AbstractCoordinator:432)
[2017-09-13 23:48:45,540] INFO Successfully joined group connect-cluster with generation 38 (org.apache.kafka.clients.consumer.internals.AbstractCoordinator:399)
[2017-09-13 23:48:45,540] INFO Joined group and got assignment: Assignment{error=0, leader='connect-1-e51c1e8b-c95a-406b-8c56-2a0d4fc432f6', leaderUrl='http://10.10.10.10:8083/', offset=20, connectorIds=[], taskIds=[oracle_jdbc_sink_test-0]} (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1166)
[2017-09-13 23:48:45,540] WARN Catching up to assignment's config offset. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:741)
[2017-09-13 23:48:45,540] INFO Current config state offset 5 is behind group assignment 20, reading to end of config log (org.apache.kafka.connect.runtime.distributed.DistributedHerder:785)
[2017-09-13 23:48:46,042] INFO Finished reading to end of log and updated config snapshot, new config log offset: 5 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:789)
[2017-09-13 23:48:46,042] INFO Current config state offset 5 does not match group assignment 20. Forcing rebalance. (org.apache.kafka.connect.runtime.distributed.DistributedHerder:765)
[2017-09-13 23:48:46,042] INFO Rebalance started (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1187)
[2017-09-13 23:48:46,042] INFO Wasn't unable to resume work after last rebalance, can skip stopping connectors and tasks (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1219)
答案 0 :(得分：0)
您可以尝试通过删除和重新创建配置主题或更改组ID来解决此问题。