Kafka 1.0：使用java更改特定主题的分区数

Kafka 1.0中的AdminUtils.addPartition调用似乎已将签名从2版本-0.10.2.0更改为1.0.0，如下所示

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卡夫卡0.10.2.0 ==========================

卡夫卡1.0.0 关于如何在Java中轻松使用新的addPartitions调用而不必指定现有和新的副本分配，您有什么想法吗？

试试这个， 它对我有用

Seq<String> names = JavaConverters.asScalaBuffer(Arrays.asList(topicname)).toSeq();
        Seq<BrokerMetadata> brokers = AdminUtils.getBrokerMetadatas(zkUtils, Enforced$.MODULE$, Option.empty());

        Map<String, Map<Object, Seq<Object>>> assignment
            = zkUtils.getPartitionAssignmentForTopics(names);
        Option<Map<Object, Seq<Object>>> assgn = assignment.get(topicname);

        AdminUtils.addPartitions(zkUtils, topicname, assgn.get(), brokers, partitions, Option.empty(), false);

Seq name=JavaConverters.asScalaBuffer（Arrays.asList（topicname））.toSeq（）；
Seq brokers=AdminUtils.getBrokerMetadata（zkUtils，强制的$.MODULE$，Option.empty（））；
地图分配
=zkUtils.getPartitionAssignmentForTopics（名称）；
Option assgn=assignment.get（topicname）；
addPartitions（zkUtils，topicname，assgn.get（），代理，分区，Option.empty（），false）；
@Munish-感谢您的回复。这是为我工作的代码

Seq<String> names = JavaConverters.asScalaBuffer(Arrays.asList(topicName));

Seq<BrokerMetadata> brokers = AdminUtils.getBrokerMetadatas(zkUtils,RackAwareMode.Enforced$.MODULE$, Option.empty());

scala.collection.mutable.Map<String, scala.collection.Map<Object, Seq<Object>>> assignment = (scala.collection.mutable.Map<String,     scala.collection.Map<Object, Seq<Object>>>)zkUtils.getPartitionAssignmentForTopics(names);

Map<String, scala.collection.Map<Object, Seq<Object>>> partitionaAssigmentMap = JavaConverters.mutableMapAsJavaMap(assignment);

AdminUtils.addPartitions(zkUtils, topicName, partitionaAssigmentMap.get(topicName), brokers,partitionCount, Option.empty(), false);

Seq name=JavaConverters.asScalaBuffer（Arrays.asList（topicName））；
Seq brokers=adminiutils.getbrokerMetadata（zkUtils，RackAwareMode.exforced$.MODULE$，Option.empty（））；
scala.collection.mutable.Map赋值=（scala.collection.mutable.Map）zkUtils.getPartitionAssignmentForTopics（名称）；
Map partitionaAssigmentMap=JavaConverters.mutableMapAsJavaMap（赋值）；
addPartitions（zkUtils，topicName，partitionaAssigmentMap.get（topicName），brokers，partitionCount，Option.empty（），false）；
从1.0.0开始，您可以改用卡夫卡客户端库

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka-clients</artifactId>
    <version>1.0.0</version> <!-- or newer -->
</dependency>

Seq<String> names = JavaConverters.asScalaBuffer(Arrays.asList(topicName));

Seq<BrokerMetadata> brokers = AdminUtils.getBrokerMetadatas(zkUtils,RackAwareMode.Enforced$.MODULE$, Option.empty());

scala.collection.mutable.Map<String, scala.collection.Map<Object, Seq<Object>>> assignment = (scala.collection.mutable.Map<String,     scala.collection.Map<Object, Seq<Object>>>)zkUtils.getPartitionAssignmentForTopics(names);

Map<String, scala.collection.Map<Object, Seq<Object>>> partitionaAssigmentMap = JavaConverters.mutableMapAsJavaMap(assignment);

AdminUtils.addPartitions(zkUtils, topicName, partitionaAssigmentMap.get(topicName), brokers,partitionCount, Option.empty(), false);

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka-clients</artifactId>
    <version>1.0.0</version> <!-- or newer -->
</dependency>

NewPartition newPartitionRequest = NewPartitions.increaseTo(10);
client.createPartitions(Collections.singletonMap("topicName", newPartitionRequest)).all().get();  //kafka clients AdminClient