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@LostKobrakai
LostKobrakai / 01_usage.exs
Last active June 12, 2017 13:36
Spliting god-object db table into on demand loadable chunks with ecto
# Basic user with just name, email, password
user = Repo.get User, 1
# Load profile
user = Repo.preload(user, :profile)
profile = user.profile
@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)