Zookeeper具有KeeperException但Kafka能够创建主题并生成/消费

Question

我最近在单节点CDH 5设置上设置了Kafka,目的是在移动到真实集群之前在单个节点上播放它.最初,我刚用kafka服务器启动了zookeeper服务器,一切都很好.我可以看到zookeeper在2181运行,而Kafka在9092运行.然后我创建了一个主题,并启动了消费者和生产者,消费者可以看到生产者发送的消息.

幸福的是,我带着动物园管理员的日志搬到了标签,看到了这个:

[2015-05-27 16:46:07,016] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:create cxid:0x2 zxid:0x1f txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group/ids Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group/ids (org.apache.zookeeper.server.PrepRequestProcessor)
[2015-05-27 16:46:07,021] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:create cxid:0x3 zxid:0x20 txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group (org.apache.zookeeper.server.PrepRequestProcessor)
[2015-05-27 16:46:07,306] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:create cxid:0x19 zxid:0x24 txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group/owners/test Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group/owners/test (org.apache.zookeeper.server.PrepRequestProcessor)
[2015-05-27 16:46:07,307] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:create cxid:0x1a zxid:0x25 txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group/owners Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group/owners (org.apache.zookeeper.server.PrepRequestProcessor)
[2015-05-27 16:47:06,961] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:setData cxid:0x24 zxid:0x29 txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group/offsets/test/0 Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group/offsets/test/0 (org.apache.zookeeper.server.PrepRequestProcessor)
[2015-05-27 16:47:06,963] INFO Got user-level KeeperException when processing sessionid:0x14d97bf0a020002 type:create cxid:0x25 zxid:0x2a txntype:-1 reqpath:n/a Error Path:/consumers/test-consumer-group/offsets Error:KeeperErrorCode = NoNode for /consumers/test-consumer-group/offsets (org.apache.zookeeper.server.PrepRequestProcessor)

看起来zookeeper无法找到节点...东西.但是,如果是这样的话,为什么我的所有命令都有效？我能够创建一个主题,然后为其订阅一些数据,而订阅它的消费者也获得数据？

如果有帮助,我的zookeeper版本是3.4.6,我的Kafka版本是0.8.2.1.哦,路径/ tmp/zookeeper存在.

Answer 1

我遇到了同样的问题。

Exiting due to: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /consumers/test-group/offsets/packets/0.

我解决了我的问题。

• 确保你的 Zookeeper 和 kafka 代理正在运行。
• 是的，您可以创建主题，生产者/消费者将会工作。
• 要解决该错误，您必须拥有一个订阅该主题的消费者组。

在您的情况下，它将是具有消费者组test-consumer-group并订阅主题的消费者Test