Make sure that the process can be started in the errored state#94
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mrcnkoba wants to merge 2 commits into
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Make sure that the process can be started in the errored state#94mrcnkoba wants to merge 2 commits into
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… resolved If the StatsD collector is not up for some reason and the application can't resolve the name by calling `:inet.gethostbyname(host)` then it prevents the entire application from starting. This commit makes sure that the TelemetryMetricsStatsD can be started in the errored state and depending on the `host_resolution_interval` it can be recovered or not. If `host_resolution_interval` isn't passed, then TelemetryMetricsStatsD will not try to resolve the host again. However, when it is passed, it can try to recover it in `host_resolution_interval` milliseconds.
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juanperi
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This PR is much less ambitious than beam-telemetry#94. In this case, we just fix the issue when the process is already started, but an error in the resolution of the hostname leads to an incorrect internal state. Without this patch, the `new_state` will be `:ok`, as that is the return from the logger function. Afterwards, when going to the `terminate` callback, then we try to call `EventHandler.detach(state.handler_ids)`, which translates to `EventHandler.detach(:ok.handler_ids)` and fails
arkgil
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This PR is much less ambitious than #94. In this case, we just fix the issue when the process is already started, but an error in the resolution of the hostname leads to an incorrect internal state. Without this patch, the `new_state` will be `:ok`, as that is the return from the logger function. Afterwards, when going to the `terminate` callback, then we try to call `EventHandler.detach(state.handler_ids)`, which translates to `EventHandler.detach(:ok.handler_ids)` and fails
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Make sure that TelemetryMetricsStatsD can be started if host can't be resolved
If the StatsD collector is not up for some reason and the application can't resolve
the name by calling
:inet.gethostbyname(host)then it prevents the entire application from starting.This commit makes sure that the TelemetryMetricsStatsD can be started in the errored state
and depending on the
host_resolution_intervalit can be recovered or not.If
host_resolution_intervalisn't passed, then TelemetryMetricsStatsD will not try to resolve the host again.However, when it is passed, it can try to recover it in
host_resolution_intervalmilliseconds