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# File 'modules/role/manifests/elasticsearch/alerts.pp', line 1
class role::elasticsearch::alerts {
# For the following 6 alerts, they all follow the pattern of "only alert if qps volume is not negligible"
# See https://phabricator.wikimedia.org/T347341#9197646 to understand specifcially how fallbackSeries/useSeriesAbove/constantLine achieve the above
monitoring::graphite_threshold { 'cirrussearch_eqiad_fulltext_95th_percentile':
description => 'CirrusSearch full_text eqiad 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=eqiad&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=38'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.eqiad.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.full_text.p95"), constantLine(0))',
from => '10min',
warning => 500,
critical => 1000,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'cirrussearch_codfw_fulltext_95th_percentile':
description => 'CirrusSearch full_text codfw 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=codfw&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=38'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.codfw.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.full_text.p95"), constantLine(0))',
from => '10min',
warning => 500,
critical => 1000,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'cirrussearch_eqiad_compsuggest_95th_percentile':
description => 'CirrusSearch comp_suggest eqiad 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=eqiad&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=50'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.eqiad.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.comp_suggest.p95"), constantLine(0))',
from => '10min',
warning => 100,
critical => 250,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'cirrussearch_codfw_compsuggest_95th_percentile':
description => 'CirrusSearch comp_suggest codfw 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=codfw&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=50'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.codfw.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.comp_suggest.p95"), constantLine(0))',
from => '10min',
warning => 100,
critical => 250,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'cirrussearch_eqiad_morelike_95th_percentile':
description => 'CirrusSearch more_like eqiad 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=eqiad&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=39'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.eqiad.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.more_like.p95"), constantLine(0))',
from => '10min',
warning => 1000,
critical => 1500,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'cirrussearch_codfw_morelike_95th_percentile':
description => 'CirrusSearch more_like codfw 95th percentile latency',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cirrus_group=codfw&var-cluster=elasticsearch&var-exported_cluster=production-search&var-smoothing=1&viewPanel=39'],
metric => 'fallbackSeries(useSeriesAbove(transformNull(MediaWiki.CirrusSearch.codfw.requestTimeMs.comp_suggest.sample_rate, 0), 10, "requestTimeMs.comp_suggest.sample_rate", "requestTimeMs.more_like.p95"), constantLine(0))',
from => '10min',
warning => 1000,
critical => 1500,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
# warning level is ~1% of peak traffic failing
monitoring::graphite_threshold { 'search_backend_failure_count':
description => 'Number of backend failures per minute from CirrusSearch',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cluster=eqiad&var-smoothing=1&viewPanel=9'],
metric => 'transformNull(MediaWiki.CirrusSearch.eqiad.backend_failure.failed.count, 0)',
from => '10min',
warning => 300,
critical => 600,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
monitoring::graphite_threshold { 'search_backend_memory_issue_count':
description => 'Number of requests triggering circuit breakers due to excessive memory usage',
dashboard_links => ['https://grafana.wikimedia.org/d/000000455/elasticsearch-percentiles?orgId=1&var-cluster=eqiad&var-smoothing=1&viewPanel=9'],
metric => 'transformNull(MediaWiki.CirrusSearch.eqiad.backend_failure.memory_issue.count, 0)',
from => '10min',
warning => 10,
critical => 20,
percentage => 20,
contact_group => 'team-discovery',
notes_link => 'https://wikitech.wikimedia.org/wiki/Search#Health/Activity_Monitoring',
}
}
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