不支持的带有 Amazon Keyspaces 的分区器(适用于 Apache Cassandra) [英] Unsupported partitioner with Amazon Keyspaces (for Apache Cassandra)

问题描述

我有一个 Java Spring 应用程序，我正在使用

使用Spring boot 2.3.x版本

时遇到的上述问题

因为是 Spring 启动版本 2.3.x

<依赖><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-cassandra-reactive</artifactId></依赖>或者<依赖><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-cassandra</artifactId></依赖>

创建 Maven/Gradle 时将获得 datastax-java-driver-core 4.6.1"，我认为这是 不支持 Amazon Keyspaces 的另一个原因.强>

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好的，清楚.....

回到 AWS 库的主题 aws-sigv4-auth-cassandra-java-driver-plugin 4.0.2

创建 Maven/Gradle 时会得到 datastax-java-driver-core 4.4.0"

现在我开始看到 Amazon Keyspaces

可能不支持 datastax-java-driver-core" 版本高于 4.4.0

<块引用><块引用>

好的，已经很久了.

<块引用><块引用>

如果你想让 Application Spring Boot 2 工作

您尝试遵循以下解决方案.

查看pom.xml

1. 删除aws-sigv4-auth-cassandra-java-driver-plugin

2. 将 Spring Boot 版本 2.3.x 降级到 2.2.9

3. 在下面添加依赖，

spring-boot-starter-data-cassandra-reactive或者spring-boot-starter-data-cassandra

4. 创建亚马逊数字证书并下载

5. 如果您使用了 InteljiJ IDEA 编辑配置

转到编辑配置 ->下一个 VM 选项在下面添加，

-Djavax.net.ssl.trustStore=path_to_file/cassandra_truststore.jks-Djavax.net.ssl.trustStorePassword=my_password

参考:

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通过.

为我工作.

技术栈

• Spring Boot WebFlux 2.2.9.RELEASE
• Cassandra 反应式
• JDK 13
• 使用 Amazon Keyspaces 的 Cassandra 数据库
• Maven 3.6.3

享受编程的乐趣.

I have a Java Spring app and I'm using Amazon Keyspaces (for Apache Cassandra). I'm using the sigv4 plugin , (version 4.0.2), the cassandra java-driver-core (version 4.4.0) and have followed the official documentation on how to connect my java app with MCS. The app connects just fine but I'm getting a weird warning at start up:

WARN 1 --- [     s0-admin-0] .o.d.i.c.m.t.DefaultTokenFactoryRegistry : [s0] Unsupported partitioner 'com.amazonaws.cassandra.DefaultPartitioner', token map will be empty.

Everything looks good but after a few minutes that warning comes back and my queries start to fail. This is how the logs look after a few minutes:

WARN 1 --- [     s0-admin-0] .o.d.i.c.m.t.DefaultTokenFactoryRegistry : [s0] Unsupported partitioner 'com.amazonaws.cassandra.DefaultPartitioner', token map will be empty.
WARN 1 --- [        s0-io-1] c.d.o.d.i.c.m.SchemaAgreementChecker     : [s0] Unknown peer xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx, excluding from schema agreement check
WARN 1 --- [        s0-io-0] c.d.o.d.i.c.control.ControlConnection    : [s0] Unexpected error while refreshing schema after a successful reconnection, keeping previous version (CompletionException: com.datastax.oss.driver.api.core.connection.ClosedConnectionException: Channel was force-closed)
WARN 1 --- [        s0-io-1] c.d.o.d.i.c.m.DefaultTopologyMonitor     : [s0] Control node ec2-x-xx-xxx-xx.us-east-2.compute.amazonaws.com/x.xx.xxx.xxx:xxxx has an entry for itself in system.peers: this entry will be ignored. This is likely due to a misconfiguration; please verify your rpc_address configuration in cassandra.yaml on all nodes in your cluster.

I have debugged a little and it looks like that partitioner comes from the actual node metadata, so I don't really know if there's an actual way to fix it.

I've seen there's a similar question asked recently here, but no solution has been posted yet. Any ideas? Thanks so much in advance

解决方案

Problem the same with me.

The above problems encountered when using a Spring boot version 2.3.x

Because is a Spring boot version 2.3.x

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-cassandra-reactive</artifactId>
</dependency>

OR

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency> 

When creating a Maven / Gradle will get "datastax-java-driver-core 4.6.1" and I think this is another reason that Amazon Keyspaces are not supported.

Okay, Clear.....

Back to the subject of AWS library aws-sigv4-auth-cassandra-java-driver-plugin 4.0.2

When creating a Maven / Gradle will get "datastax-java-driver-core 4.4.0"

Now I am starting to see that Amazon Keyspaces

Maybe not supported "datastax-java-driver-core" with version greater than 4.4.0

Okay, it's been very long.

If you want Application Spring Boot 2 to work

You try following the solutions follows.

look at pom.xml

1. remove aws-sigv4-auth-cassandra-java-driver-plugin

2. downgrade Spring boot version 2.3.x to 2.2.9

3. add dependency below,

spring-boot-starter-data-cassandra-reactive OR spring-boot-starter-data-cassandra

4. create Amazon digital certificate and download

5. If you used InteljiJ IDEA Edit Configurations

Goto Edit Configurations -> next VM Options add below,

-Djavax.net.ssl.trustStore=path_to_file/cassandra_truststore.jks 

-Djavax.net.ssl.trustStorePassword=my_password

Reference: https://docs.aws.amazon.com/keyspaces/latest/devguide/using_java_driver.html

6. application-dev.yml add config below,

spring:
      data:
        cassandra:
          contact-points:
            - "cassandra.ap-southeast-1.amazonaws.com"
          port: 9142
          ssl: true
          username: "cassandra-username"
          password: "cassandra-password"
          keyspace-name: keyspace-name
          request:
            consistency: local_quorum

7. Run Test Program

Pass.

Work for me.

Tech Stack

• Spring Boot WebFlux 2.2.9.RELEASE
• Cassandra Reactive
• JDK 13
• Cassandra Database with Amazon Keyspaces
• Maven 3.6.3

Have fun with programming.

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