Error logs - invalid metric name about firehose_exporter HOT 7 CLOSED

Ok, the problem seems to be gone. Will re-open later if it occurs again.

Thanks!

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The above error started to occur again few days ago. As already mentioned the /metrics endpoint itself works fine and shows all the metrics. But when we pull this endpoint from the Prometheus, we are getting the above error.

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Dear Team,

We are facing ann error like below

invalid metric name "firehose_value_metric_p_rabbitmq_p_rabbitmq_rabbitmq_queues_57851356_3_b_15_461_d_836_e_65_f_279371_ebb_deal_delete_exchange_anonymous_._q_cg_5_t_tb_w_7_e_mm_4_za_5_e_yg_consumers"
--

It was reported already by my colleague @RobiD . Could you please have a look into this.

Best Regards,
Aravind

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Looks similar to #38

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Agreed. This looks like the same issue we are facing on #38. The problem is the '.' character. We are using web stomp temporary queues which have randomly generated names. When these names include a '.' or a '-' the regex truncates the metric name. This results in an invalid result for HELP, TYPE and metric entries since the truncation divides the name the second half of the name is passed as the rest of the TYPE, HELP or metric name and is invalid.
As mentioned in #38 it appears that normalize_name.go util was developed to address these problems and perhaps can be expanded to handle these invalid characters as well.
https://github.com/bosh-prometheus/firehose_exporter/blob/master/utils/normalize_name.go

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This should be fixed at be93e26. I'll cut a new release soon.

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v5.0.4 fixes this issue.

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