Consuming with Kafkacat shows no messages, although using -o beginning

Asked Aug 22 '21 at 06:07

Active Aug 22 '21 at 07:23

Viewed 857 times

I'm trying to consume from a topic using Kafkacat , using the following command:

kafkacat -b *****:9093 -C -K\t -X security.protocol=SASL_SSL -X sasl.mechanisms=SCRAM-SHA-512 -X sasl.username=**** -X sasl.password=**** -t **** -o beginning

The response for the command is:

% Reached end of topic **** [0] at offset 121507
% Reached end of topic **** [2] at offset 186701
% Reached end of topic **** [1] at offset 175697

Now - Shouldn't the flag -o beginning show me all of the messages? I'm trying to understand how to begin at the first offset without success

edited Aug 22 '21 at 07:23

asked Aug 22 '21 at 06:07

Shizzle

How are we supposed to know if the topic isn't empty? – OneCricketeer Aug 22 '21 at 12:59
It is not, since it has positive large offsets in all partitions.. I just want to read them all from the beginning – Shizzle Aug 22 '21 at 17:18
1

Offsets never decrease. The beginning and the end could be the same, positive large offset – OneCricketeer Aug 22 '21 at 23:30

Consuming with Kafkacat shows no messages, although using -o beginning

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