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telegraf/plugins/inputs/ras/README.md

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# RAS Daemon Input Plugin
This plugin is only available on Linux (only for `386`, `amd64`, `arm` and
`arm64` architectures).
The `RAS` plugin gathers and counts errors provided by
[RASDaemon](https://github.com/mchehab/rasdaemon).
## Global configuration options <!-- @/docs/includes/plugin_config.md -->
In addition to the plugin-specific configuration settings, plugins support
additional global and plugin configuration settings. These settings are used to
modify metrics, tags, and field or create aliases and configure ordering, etc.
See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins
## Configuration
```toml @sample.conf
# RAS plugin exposes counter metrics for Machine Check Errors provided by RASDaemon (sqlite3 output is required).
# This plugin ONLY supports Linux on 386, amd64, arm, and arm64
[[inputs.ras]]
## Optional path to RASDaemon sqlite3 database.
## Default: /var/lib/rasdaemon/ras-mc_event.db
# db_path = ""
```
In addition `RASDaemon` runs, by default, with `--enable-sqlite3` flag. In case
of problems with SQLite3 database please verify this is still a default option.
## Metrics
- ras
- tags:
- socket_id
- fields:
- memory_read_corrected_errors
- memory_read_uncorrectable_errors
- memory_write_corrected_errors
- memory_write_uncorrectable_errors
- cache_l0_l1_errors
- tlb_instruction_errors
- cache_l2_errors
- upi_errors
- processor_base_errors
- processor_bus_errors
- internal_timer_errors
- smm_handler_code_access_violation_errors
- internal_parity_errors
- frc_errors
- external_mce_errors
- microcode_rom_parity_errors
- unclassified_mce_errors
Please note that `processor_base_errors` is aggregate counter measuring the
following MCE events:
- internal_timer_errors
- smm_handler_code_access_violation_errors
- internal_parity_errors
- frc_errors
- external_mce_errors
- microcode_rom_parity_errors
- unclassified_mce_errors
## Permissions
This plugin requires access to SQLite3 database from `RASDaemon`. Please make
sure that user has required permissions to this database.
## Example Output
```text
ras,host=ubuntu,socket_id=0 external_mce_base_errors=1i,frc_errors=1i,instruction_tlb_errors=5i,internal_parity_errors=1i,internal_timer_errors=1i,l0_and_l1_cache_errors=7i,memory_read_corrected_errors=25i,memory_read_uncorrectable_errors=0i,memory_write_corrected_errors=5i,memory_write_uncorrectable_errors=0i,microcode_rom_parity_errors=1i,processor_base_errors=7i,processor_bus_errors=1i,smm_handler_code_access_violation_errors=1i,unclassified_mce_base_errors=1i 1598867393000000000
ras,host=ubuntu level_2_cache_errors=0i,upi_errors=0i 1598867393000000000
```