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@marwei
marwei / how_to_reset_kafka_consumer_group_offset.md
Created November 9, 2017 23:39
How to Reset Kafka Consumer Group Offset

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

  1. List the topics to which the group is subscribed
kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

  1. Reset the consumer offset for a topic (preview)
@mrichman
mrichman / main.go
Last active December 28, 2021 08:20
AWS Lambda function in Go to resize an image uploaded to S3. Uses https://github.com/apex/apex
package main
import (
"bytes"
"image/jpeg"
"log"
"path"
"strings"
apex "github.com/apex/go-apex"