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Properly print the SQL server error string in the log message.

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On a Debian + PostgreSQL 9.4 system I had a hard time getting the
exporter to work. It looks like I was running into some authentication
issues that weren't logged by sql.Open(), but by sql.DB.QueryRow().

This change extends the warning generated by the call to
checkMapVersions() to also print the error message generated by
sql.DB.QueryRow().
This commit is contained in:
Ed Schouten 2016-11-29 10:21:16 +01:00 committed by Will Rouesnel
parent 1e43282aa2
commit 2c6594edca
1 changed files with 1 additions and 1 deletions
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2
postgres_exporter.go
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@ -984,7 +984,7 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
// Check if map versions need to be updated
if err := e.checkMapVersions(ch, db); err != nil {
log.Warnln("Postgres version could not be determined. Proceeding with outdated query maps.")
log.Warnln("Proceeding with outdated query maps, as the Postgres version could not be determined:", err)
e.error.Set(1)
}