Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/ras/README.md

@@ -0,0 +1,77 @@
+# 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
+```