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- # you can disable an alarm notification by setting the 'to' line to: silent
- alarm: 10min_dbengine_global_fs_errors
- on: netdata.dbengine_global_errors
- class: Errors
- type: Netdata
- component: DB engine
- os: linux freebsd macos
- hosts: *
- lookup: sum -10m unaligned of fs_errors
- units: errors
- every: 10s
- crit: $this > 0
- delay: down 15m multiplier 1.5 max 1h
- info: number of filesystem errors in the last 10 minutes (too many open files, wrong permissions, etc)
- to: sysadmin
- alarm: 10min_dbengine_global_io_errors
- on: netdata.dbengine_global_errors
- class: Errors
- type: Netdata
- component: DB engine
- os: linux freebsd macos
- hosts: *
- lookup: sum -10m unaligned of io_errors
- units: errors
- every: 10s
- crit: $this > 0
- delay: down 1h multiplier 1.5 max 3h
- info: number of IO errors in the last 10 minutes (CRC errors, out of space, bad disk, etc)
- to: sysadmin
- alarm: 10min_dbengine_global_flushing_warnings
- on: netdata.dbengine_global_errors
- class: Errors
- type: Netdata
- component: DB engine
- os: linux freebsd macos
- hosts: *
- lookup: sum -10m unaligned of pg_cache_over_half_dirty_events
- units: errors
- every: 10s
- warn: $this > 0
- delay: down 1h multiplier 1.5 max 3h
- info: number of times when dbengine dirty pages were over 50% of the instance's page cache in the last 10 minutes. \
- Metric data are at risk of not being stored in the database. To remedy, reduce disk load or use faster disks.
- to: sysadmin
- alarm: 10min_dbengine_global_flushing_errors
- on: netdata.dbengine_long_term_page_stats
- class: Errors
- type: Netdata
- component: DB engine
- os: linux freebsd macos
- hosts: *
- lookup: sum -10m unaligned of flushing_pressure_deletions
- units: pages
- every: 10s
- crit: $this != 0
- delay: down 1h multiplier 1.5 max 3h
- info: number of pages deleted due to failure to flush data to disk in the last 10 minutes. \
- Metric data were lost to unblock data collection. To fix, reduce disk load or use faster disks.
- to: sysadmin
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