rpk redpanda mode
Enable a default configuration mode. This command changes the local redpanda.yaml
and enable or disable the tuners based on each mode. For example prod
enables multiple tuners whereas mode dev
disable all tuners.
The available modes:
Development mode
Development (dev) mode includes the following development-only settings:
Sets
developer_mode
totrue
. This starts Redpanda with dev-mode only settings, including:- No minimal memory limits are enforced.
- No core assignment rules for Redpanda nodes are enforced.
- Bypasses
fsync
(from Seastar optionunsafe_bypass_fsync
), which results in unrealistically fast clusters and may result in data loss.
Sets
overprovisioned
totrue
. Redpanda expects a dev system to be an overprovisioned environment. Based on a Seastar option, settingoverprovisioned
disables thread affinity, zeros idle polling time, and disables busy-poll for disk I/O.Sets all autotuner tuners to
false
. The tuners are intended to run only for production mode.
Enabled features in development mode
Enabling development (dev) mode sets the following features:
redpanda:
...
developer_mode: true
rpk:
tune_network: false
tune_disk_scheduler: false
tune_disk_nomerges: false
tune_disk_write_cache: false
tune_disk_irq: false
tune_cpu: false
tune_aio_events: false
tune_clocksource: false
tune_swappiness: false
tune_ballast_file: false
overprovisioned: true
...
Production mode
Production (prod) mode disables dev-mode settings:
developer_mode: false
overprovisioned: false
It also enables a set of tuners of the autotuner. For descriptions about the tuners, see Tuners in the rpk redpanda tune list command reference.
Enabled features in production mode
Enabling production (prod) mode sets the following features:
redpanda:
developer_mode: false
rpk:
tune_network: true
tune_disk_scheduler: true
tune_disk_nomerges: true
tune_disk_write_cache: true
tune_disk_irq: true
tune_cpu: true
tune_aio_events: true
tune_clocksource: true
tune_swappiness: true
tune_ballast_file: true
overprovisioned: false
Usage
rpk redpanda mode <mode> [flags]
Flags
Value | Type | Description |
--config | string | Redpanda config file, if not set the file will be searched for in the default locations. |
-h, --help | - | Help for mode. |
-v, --verbose | - | Enable verbose logging (default false ). |