Aurora 13.5 returns shared_buffers setting with unit causing a panic #619
Description
I have upgraded my AWS Aurora server to 13.5 today and I noticed that postgres-exporter started crashing.
From the logs, I see that the error is:
panic: Error converting setting "shared_buffers" value "88413056kB" to float: strconv.ParseFloat: parsing "88413056kB": invalid syntax
I looked at the code and I found a query selecting from pg_settings, so I tried it on the server, and indeed, shared_buffers is returning a value with the unit combined.
I tested the same query on a postgres in docker on my machine and 13.5 does not return this value with the unit, so this is something related to Aurora specifically.
I can work on a pull request. But I'm not sure what would be the best method. My thought was to have a test to see if the unit is included in the setting's value and strip it if it is the case.
This is the shared_buffer line from the query:
name | setting | coalesce | short_desc | vartype
shared_buffers | 88413056kB | 8kB | Sets the number of shared memory buffers used by the server. | integer