Hi, just an update on this.roidelapluie wrote a comment on the github issue suggesting that i try to add an ENV variable to prometheus. This resolved for me the issue.
Could you try with Prometheus running with the environment variable PROMETHEUS_COMMON_DISABLE_HTTP2=x ? That would help a lot.
-- Best regards Kevin Weis Pronouns: he / him On 1/14/22 14:40, Kevin Weis wrote:
Hi,i recently updated prometheus and alertmanager and now prometheus cant send any alerts to alertmanager :/I've already tried downgrading alertmanger, without success.I did't downgrade prometheus in fear of data inconsistencies or data-corruption.Does anyone else had this issue and was able to solve it? It would be great if someone could take a moment to look at this. Prometheus version: from version v2.28.1 to v2.32.1 Alertmanager version: from version v0.22.2 to v0.23.0 Prometheus configuration file (snippet): alerting: alertmanagers: - scheme: http proxy_url: "https://alertmanager.domain.tld"; static_configs: - targets: - "alertmanager:9093" Here is the error message logged by prometheus:caller=notifier.go:526 level=error component=notifier alertmanager=http://alertmanager:9093/api/v2/alerts count=1 msg="Error sending alert" err="Post \"http://alertmanager:9093/api/v2/alerts\": http2: unsupported scheme"More details are on https://github.com/prometheus/prometheus/issues/10160 Thanks
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