Inconsistent error messages from DAO

[subnetmarco]

I expect DAO errors to be returned in the following form:

{
  database = true,
  message = "localhost could not be resolved (3: Host not found)"
}

But sometimes they show up in an inconsistent format, like:

{
  database = true,
  message = {
    database = true,
    message = "localhost could not be resolved (3: Host not found)"
  }
}

This specific example can be replicated by setting an invalid IP address/host in the Cassandra hosts property, starting the server and making a request.

[thibaultcha]

I really can't reproduce this. Here is an attempt:

local inspect = require "inspect"

local new_factory = CassandraFactory({ hosts = "helloworld",
                                       port = 45678,
                                       timeout = 1000,
                                       keyspace = configuration.cassandra.keyspace
})

local err = new_factory:prepare()
print(inspect(err))

local api_t = faker:fake_entity("api")
local api, err = new_factory.apis:insert(api_t)
print(inspect(err))

It's just doing as currently expected, failing on prepare and throwing an error on insert:

{
  database = true,
  message = "host not found"
}

But since main.lua exits on a prepare error, I really don't understand how this can happen. Please provide a test to reproduce.

[thibaultcha]

Please try to reproduce against master.

[subnetmarco]

I'm now getting

 [lua] init_by_lua:5: Startup error: host not found

Can't reproduce.