update expr for AlertmanagerClusterFailedToSendAlerts to exclude value 0 #4872
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ultrotter
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Jan 9, 2026
…4888) Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.30.0 to 0.32.0. - [Commits](golang/mod@v0.30.0...v0.32.0) --- updated-dependencies: - dependency-name: golang.org/x/mod dependency-version: 0.32.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Signed-off-by: Junqi Zhao <juzhao@redhat.com> Signed-off-by: juzhao <juzhao@redhat.com>
Signed-off-by: Junqi Zhao <juzhao@redhat.com> Signed-off-by: juzhao <juzhao@redhat.com>
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TheMeier
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Jan 16, 2026
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needs approval from a maintainer in: https://github.com/prometheus/alertmanager/blob/main/MAINTAINERS.md to run the workflows |
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@simonpasquier can you help to review and approve it? |
jan--f
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Jan 22, 2026
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@juzhao can you please rebase you PR? |
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done |
jan--f
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Jan 26, 2026
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Thanks for the thorough description.
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SuperQ
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Feb 2, 2026
* [ENHANCEMENT] docs(opsgenie): Fix description of `api_url` field. #4908 * [ENHANCEMENT] docs(slack): Document missing app configs. #4871 * [ENHANCEMENT] docs: Fix `max-silence-size-bytes`. #4805 * [ENHANCEMENT] docs: Update expr for `AlertmanagerClusterFailedToSendAlerts` to exclude value 0. #4872 * [ENHANCEMENT] docs: Use matchers for inhibit rules examples. #4131 * [ENHANCEMENT] docs: add notification integrations. #4901 * [ENHANCEMENT] docs: update `slack_config` attachments documentation links. #4802 * [ENHANCEMENT] docs: update description of filter query params in openapi doc. #4810 * [ENHANCEMENT] provider: Reduce lock contention. #4809 * [FEATURE] slack: Add support for top-level text field in slack notification. #4867 * [FEATURE] smtp: Add support for authsecret from file. #3087 * [FEATURE] smtp: Customize the ssl/tls port support (#4757). #4818 * [FEATURE] smtp: Enhance email notifier configuration validation. #4826 * [FEATURE] telegram: Add `chat_id_file` configuration parameter. #4909 * [FEATURE] telegram: Support global bot token. #4823 * [FEATURE] webhook: Support templating in url fields. #4798 * [FEATURE] wechat: Add config directive to pass api secret via file. #4734 * [FEATURE] provider: Implement per alert limits. #4819 * [BUGFIX] Allow empty `group_by` to override parent route. #4825 * [BUGFIX] Set `spellcheck=false` attribute on silence filter input. #4811 * [BUGFIX] jira: Fix for handling api v3 with ADF. #4756 * [BUGFIX] jira: Prevent hostname corruption in cloud api url replacement. #4892 --------- Signed-off-by: Solomon Jacobs <solomonjacobs@protonmail.com> Signed-off-by: Ben Kochie <superq@gmail.com> Co-authored-by: Ben Kochie <superq@gmail.com>
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AlertmanagerClusterFailedToSendAlerts critical alert is defined in
https://github.com/prometheus/alertmanager/blob/release-0.29/doc/alertmanager-mixin/alerts.libsonnet#L61-L78
configured wrong smtp port for email_configs
saw the erorrs in alertmanager logs
expected the AlertmanagerClusterFailedToSendAlerts to be fired, but not, checked locally, the
reasonlabel has several possible values and some of them report 0 so min(...) is always 0, exclude the value 0 can trigger the alertsame for the AlertmanagerClusterFailedToSendAlerts warning alert