Is there a straight forward way to determine if a kafka topic exists? I had a situation where my topic got deleted and when attempting to write or read I get a very weird error about not being able to assign a partition. That error could certainly be better. However, if the topic ...
kafka-topics.sh实际上是调用kafka.admin.TopicCommand的方法来创建 topic,其实现如下: //note: 创建 topic def createTopic(zkUtils: ZkUtils, opts: TopicCommandOptions) { val topic = opts.options.valueOf(opts.topicOpt) val configs = parseTopicConfigsToBeAdded(opts) val ifNotExists = opts.options.ha...
kafka-topics.sh实际上是调用kafka.admin.TopicCommand的方法来创建 topic,其实现如下: //note: 创建 topic def createTopic(zkUtils: ZkUtils, opts: TopicCommandOptions) { val topic = opts.options.valueOf(opts.topicOpt) val configs = parseTopicConfigsToBeAdded(opts) val ifNotExists = opts.options.ha...
128~]# kafka-topics.sh --zookeeper localhost:2181 --create --topic topic-create3 --partitions 3 --replication-factor 2 --if-not-exists #首先创建一个以"topic.1_2"为名称的主题,提示WARNING警告,之后再创建"topic_1.2"时发生InvalidTopicException异常 128~]# kafka-topics.sh --zookeeper localhost:...
必须将delete.topic.enable设置为true才能够删除topic。如果设置为false,那么删除主题的操作将会被忽略。 如果使用kafka-topics.sh脚本删除kafka内部topic,删除时会报错。截至kafka 2.0.0,kafka一共有2个内部topic,分别是__consumer_offsets和__transaction_state;删除一个不存在的topic也会报错。可以使用--if-exists...
遍历TopicPartition拉取消息,并把结果拉取消息的reslut,存入ArrayBuffer[(TopicPartition, LogReadResult)] readPartitionInfo.foreach { case (tp, fetchInfo) => /** * 遍历TopicPartition,并在当前TopicPartition拉取数据 */ val readResult = read(tp, fetchInfo, limitBytes, minOneMessage) //读取数据的大...
--if-exists 只有当主题存在时,相关命令才会执行,不会显示错误 代码语言:javascript 复制 1[root@10kafka_2]# bin/kafka-topics.sh--zookeeper10.211.55.3:2181--topic topic-7--alter--config segment.bytes=104857--if-exists23[root@10kafka_2]# bin/kafka-topics.sh--zookeeper10.211.55.3:2181--topic ...
Spring Boot 进行测试提示 TestContextAnnotationUtils 错误
val duplicateTopicsToReassign = CoreUtils.duplicates(topicsToReassign)if(duplicateTopicsToReassign.nonEmpty) throw new AdminCommandFailedException("List of topics to reassign contains duplicate entries: %s".format(duplicateTopicsToReassign.mkString(","))) ...
void run(long now) {//第一步,获取元数据Cluster cluster = metadata.fetch();// get the listofpartitionswithdata readytosend//第二步,判断哪些partition满足发送条件RecordAccumulator.ReadyCheckResult result = this.accumulator.ready(cluster, now);/*** 第三步,标识还没有拉取到元数据的topic*/if (!