label "aksv0a7h237av_58_98_enq_TX_row_lock_contention_" not accepted by Prom (or Pushgateway)

[Evelyn Pereira Souza]

Hi

We use Telegate (is it now called Prometheus Pushgateway?) to send
output from cronjob.

This the relevant part of shell script:

cat <<EOF | curl --data-binary @-
https://telegate.example.com/metrics/job/table_lock/service_name/"$2"/contents/"$q2"
# TYPE table_lock_zz gauge
# HELP table_lock_zz Displays whether there is a table lock on zz
table_lock_zz 0
EOF

This is the debug what he does:

curl --data-binary @-
https://telegate.example.com/metrics/job/table_lock/service_name/RWA4.V.DBS/contents/aksv0a7h237av_58_98_enq_TX_row_lock_contention_

He seems not accept this label

contents = aksv0a7h237av_58_98_enq_TX_row_lock_contention_

But it matches the Regex [a-zA-Z_][a-zA-Z0-9_]* (this regex from Prom docs)

I try to send a little output of the DB as label, I remove unwanted chars

q2="`echo $q | tr -s -c [:alnum:] _`"

Is there a problem with length?

kind regards
Evelyn