rpk topic trim-prefix

Trim records from topics

This command allows you to trim records from topics, where Redpanda sets the LogStartOffset for partitions to the requested offset. All segments whose base offset is less then the requested offset are deleted, and any records within the segment before the requested offset can no longer be read.

The --offset/-o flag allows you to indicate which index you want to set the partition’s low watermark (start offset) to. It can be a single integer value denoting the offset, or a timestamp if you prefix the offset with an '@'. You may select which partition you want to trim the offset from with the --partition/-p flag.

The --from-file option allows to trim the offsets specified in a text file with the following format:


or the equivalent keyed JSON/YAML file.


  • Trim records in 'foo' topic to offset 120 in partition 1:

    rpk topic trim-prefix foo --offset 120 --partition 1
  • Trim records in all partitions of topic foo previous to an specific timestamp:

    rpk topic trim-prefix foo -o "@1622505600"
  • Trim records from a JSON file:

    rpk topic trim-prefix --from-file /tmp/to_trim.json


rpk topic trim-prefix [TOPIC] [flags]


trim-prefix, trim


Value Type Description

-f, --from-file


File of topic/partition/offset for which to trim offsets for.

-h, --help


Help for trim-prefix.



Disable confirmation prompt.

-o, --offset


Offset to set the partition’s start offset to, either as an integer or timestamp (@<timestamp-value>).

-p, --partitions


int32Slice Comma-separated list of partitions to trim records from (default to all) (default []).



Redpanda or rpk config file; default search paths are /var/lib/redpanda/.config/rpk/rpk.yaml, $PWD/redpanda.yaml, and /etc/redpanda/redpanda.yaml.

-X, --config-opt


Override rpk configuration settings. See rpk -X or execute rpk -X help for inline detail or rpk -X list for terser detail.



Profile to use. See rpk profile for more details.

-v, --verbose


Enable verbose logging.