# 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 lookup: sum -10m unaligned of fs_errors units: errors every: 10s crit: $this > 0 delay: down 15m multiplier 1.5 max 1h summary: Netdata DBengine filesystem errors 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 lookup: sum -10m unaligned of io_errors units: errors every: 10s crit: $this > 0 delay: down 1h multiplier 1.5 max 3h summary: Netdata DBengine IO errors 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 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 summary: Netdata DBengine global flushing warnings 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 lookup: sum -10m unaligned of flushing_pressure_deletions units: pages every: 10s crit: $this != 0 delay: down 1h multiplier 1.5 max 3h summary: Netdata DBengine global flushing errors 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