kafka.common.KafkaException：无法将来自 Zookeeper 的代理信息从 EC2 解析到弹性搜索

Question

我设置了 aws MSK，我正在尝试将记录从 MSK 接收到弹性搜索。 我能够将数据推入 MSK 为 json 格式。 我想沉迷于弹性搜索。 我能够正确完成所有设置。 这就是我在 EC2 实例上所做的

wget /usr/local http://packages.confluent.io/archive/3.1/confluent-oss-3.1.2-2.11.tar.gz -P ~/Downloads/
tar -zxvf ~/Downloads/confluent-oss-3.1.2-2.11.tar.gz -C ~/Downloads/
sudo mv ~/Downloads/confluent-3.1.2 /usr/local/confluent

/usr/local/confluent/etc/kafka-connect-elasticsearch

之后我修改了 kafka-connect-elasticsearch 并设置了我的弹性搜索 url

name=elasticsearch-sink
connector.class=io.confluent.connect.elasticsearch.ElasticsearchSinkConnector
tasks.max=1
topics=AWSKafkaTutorialTopic
key.ignore=true
connection.url=https://search-abcdefg-risdfgdfgk-es-ex675zav7k6mmmqodfgdxxipg5cfsi.us-east-1.es.amazonaws.com
type.name=kafka-connect

生产者发送如下格式的消息

{
        "data": {
                "RequestID":    517082653,
                "ContentTypeID":        9,
                "OrgID":        16145,
                "UserID":       4,
                "PromotionStartDateTime":       "2019-12-14T16:06:21Z",
                "PromotionEndDateTime": "2019-12-14T16:16:04Z",
                "SystemStartDatetime":  "2019-12-14T16:17:45.507000000Z"
        },
        "metadata":     {
                "timestamp":    "2019-12-29T10:37:31.502042Z",
                "record-type":  "data",
                "operation":    "insert",
                "partition-key-type":   "schema-table",
                "schema-name":  "dbo",
                "table-name":   "TRFSDIQueue"
        }
}

我对 kafka 连接如何从这里开始有点困惑？ 如果是，我该如何开始？

我还启动了如下所示的模式注册表，但出现了错误。

/usr/local/confluent/bin/schema-registry-start /usr/local/confluent/etc/schema-registry/schema-registry.properties

当我这样做时，我得到以下错误

[2019-12-29 13:49:17,861] ERROR Server died unexpectedly:  (io.confluent.kafka.schemaregistry.rest.SchemaRegistryMain:51)
kafka.common.KafkaException: Failed to parse the broker info from zookeeper: {"listener_security_protocol_map":{"CLIENT":"PLAINTEXT","CLIENT_SECURE":"SSL","REPLICATION":"PLAINTEXT","REPLICATION_SECURE":"SSL"},"endpoints":["CLIENT:/

请帮忙。

按照回答中的建议，我升级了 kafka 连接版本，但后来我开始出现错误

 ERROR Error starting the schema registry (io.confluent.kafka.schemaregistry.rest.SchemaRegistryRestApplication:63)
io.confluent.kafka.schemaregistry.exceptions.SchemaRegistryInitializationException: Error initializing kafka store while initializing schema registry
        at io.confluent.kafka.schemaregistry.storage.KafkaSchemaRegistry.init(KafkaSchemaRegistry.java:210)
        at io.confluent.kafka.schemaregistry.rest.SchemaRegistryRestApplication.initSchemaRegistry(SchemaRegistryRestApplication.java:61)
        at io.confluent.kafka.schemaregistry.rest.SchemaRegistryRestApplication.setupResources(SchemaRegistryRestApplication.java:72)
        at io.confluent.kafka.schemaregistry.rest.SchemaRegistryRestApplication.setupResources(SchemaRegistryRestApplication.java:39)
        at io.confluent.rest.Application.createServer(Application.java:201)
        at io.confluent.kafka.schemaregistry.rest.SchemaRegistryMain.main(SchemaRegistryMain.java:41)
Caused by: io.confluent.kafka.schemaregistry.storage.exceptions.StoreInitializationException: Timed out trying to create or validate schema topic configuration
        at io.confluent.kafka.schemaregistry.storage.KafkaStore.createOrVerifySchemaTopic(KafkaStore.java:168)
        at io.confluent.kafka.schemaregistry.storage.KafkaStore.init(KafkaStore.java:111)
        at io.confluent.kafka.schemaregistry.storage.KafkaSchemaRegistry.init(KafkaSchemaRegistry.java:208)
        ... 5 more
Caused by: java.util.concurrent.TimeoutException
        at org.apache.kafka.common.internals.KafkaFutureImpl$SingleWaiter.await(KafkaFutureImpl.java:108)
        at org.apache.kafka.common.internals.KafkaFutureImpl.get(KafkaFutureImpl.java:274)
        at io.confluent.kafka.schemaregistry.storage.KafkaStore.createOrVerifySchemaTopic(KafkaStore.java:161)
        ... 7 more

Answer 1

首先，Confluent Platform 3.1.2 已经相当老了。我建议你获取与 Kafka 版本一致的版本

您使用位于 bin 和 etc/kafka 文件夹下的适当 connect-* 脚本和属性启动 Kafka Connect

例如，

/usr/local/confluent/bin/connect-standalone \
  /usr/local/confluent/etc/kafka/kafka-connect-standalone.properties \ 
  /usr/local/confluent/etc/kafka-connect-elasticsearch/quickstart.properties

如果可行，您可以继续使用连接分布式命令

关于 Schema Registry，您可以在其 Github 问题上搜索多个试图让 MSK 工作的人，但根本问题与 MSK 未公开 PLAINTEXT 侦听器和 Schema Registry 不支持命名侦听器有关。 （这可能在 5.x 版本之后发生了变化）

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您也可以尝试在 ECS / EKS 中使用 Connect 和 Schema Registry 容器，而不是在 EC2 机器中提取