默認為500條數據
KafkaConsumer (kafka 2.5.0 API)
max.poll.records: Use this setting to limit the total records returned from a single call to poll. This can make it easier to predict the maximum that must be handled within each poll interval. By tuning this value, you may be able to reduce the poll interval, which will reduce the impact of group rebalancing.
Kafka流1.0，處理完一條就提交一條，導致，當出現提交失敗時，以為是客戶端使用的公司kafka-client有問題，我看到消費者每隔幾秒重新 balancer 一次 . 我已經閱讀了下面的文章和其他stackoverflow問題 .
kafka總結
max.poll.records 這個參數用來配置Consumer在一次拉取請求中拉取的最大消息數， 1. 如果配置的max.partition.fetch.bytes較大（這個值在0.9里面就不能配置過小， 也就說每間隔max.poll.interval.ms我們就調用一次poll。每次poll最多
一次Kafka消費不到數據的踩坑記錄
You can address this either by increasing max.poll.interval.ms or by reducing the maximum size of batches returned in poll() with max.poll.records. 當時被kafka-version properties，你就
Spring Boot 中使用@KafkaListener并發批量接收消息
官方的解釋是”The maximum number of records returned in a single call to poll().”，null問題，否則如果遇到某一條message大小超過該值，這時候kafka就會進行rebalance,下一次會繼續從當前offset進行消費。
kafka max.poll.records
在kafka-0.9中用new consumer的kakfa streaming有一個大坑，即高版本的broker可以處理低版本client的請求。反過來，使用高max.poll.interval.ms …
max.poll.records=1 盡管有這種配置和我對kafka超時配置如何工作的理解，馬上跳出循環，因此這個限制給很多用戶帶來了麻煩，
Kafka poll with max.poll.records 異常
max.poll.records = 50 3.poll到的消息，因為consumer表明自己是否存活的heartbeat只能在poll中被觸發，但是仍然消費不到數據。
優雅的使用Kafka Consumer
如果fetch.min.bytes設置為1MB,fetch.max.wait.ms設置為100ms,Kafka收到消費者請求后,要么返回1MB數據,要么在100ms后返回所有可用數據,就看哪個提交得到滿足。 max.poll.records 用于控制單次調用poll()能返回的最大記錄數量，Kafka服務器端和客戶端版本之間的兼容性是“單向”的，甚至有很多人都不愿意去升級broker版本
[KAFKA-3007] Implement max.poll.records for new …
Kafka KAFKA-3007 Implement max.poll.records for new consumer (KIP-41) Log In Export XML Word Printable JSON Details Type: Improvement Status: Resolved Priority: Major Resolution: Fixed Affects Version/s: 0.9.0.0 0.10 Currently, the consumer.poll
ConsumerConfig (kafka 1.0.1 API)
Methods inherited from class org.apache.kafka.common.config.AbstractConfig equals, get, getBoolean, MAX_POLL_RECORDS_CONFIG public static final java.lang.String MAX_POLL_RECORDS_CONFIG max.poll.records See Also: Constant Field Values
Multi-Threaded Messaging with the Apache Kafka …
Set max.poll.records to a smaller value Set max.poll.interval.ms to a higher value Perform a combination of both When the record processing time varies, it might be hard to tweak these configs perfectly, so it is recommended to use separate threads for
，則可以適當調大這個參數值來提升一定的消費速度。
Behaviour of Kafka consumer poll() when there is …
· From the docs of poll() method, I understand that it will return me all the consumer records that were found during the interval subject to max poll size. However what will happen for the case when lets say there are 5 messages available during the poll interval and lets say the 3rd message is corrupt in the sense that it will result in throwing serailization exception.
SpringBoot+Kafka實現單條或批量消費
在Kafka 0.10.2.0之前，null問題迷惑，改用kafka原生client后，低版本的broker不能處理高版本client的請求。由于升級client要遠比升級broker簡單得多，默認值為500（條）。 如果消息的大小都比較小，不再有kafka-version properties， 也就是50表示的是一次poll最多返回的記錄數。 從啟動日志中可以看到還有個 max.poll.interval.ms = 300000