gitlab-org--gitlab-foss/spec/lib/gitlab/storage_check/response_spec.rb
Bob Van Landuyt f1ae1e39ce Move the circuitbreaker check out in a separate process
Moving the check out of the general requests, makes sure we don't have
any slowdown in the regular requests.

To keep the process performing this checks small, the check is still
performed inside a unicorn. But that is called from a process running
on the same server.

Because the checks are now done outside normal request, we can have a
simpler failure strategy:

The check is now performed in the background every
`circuitbreaker_check_interval`. Failures are logged in redis. The
failures are reset when the check succeeds. Per check we will try
`circuitbreaker_access_retries` times within
`circuitbreaker_storage_timeout` seconds.

When the number of failures exceeds
`circuitbreaker_failure_count_threshold`, we will block access to the
storage.

After `failure_reset_time` of no checks, we will clear the stored
failures. This could happen when the process that performs the checks
is not running.
2017-12-08 09:11:39 +01:00

54 lines
1.5 KiB
Ruby

require 'spec_helper'
describe Gitlab::StorageCheck::Response do
let(:fake_json) do
{
check_interval: 42,
results: [
{ storage: 'working', success: true },
{ storage: 'skipped', success: nil },
{ storage: 'failing', success: false }
]
}.to_json
end
let(:fake_http_response) do
fake_response = instance_double("Excon::Response - Status check")
allow(fake_response).to receive(:status).and_return(200)
allow(fake_response).to receive(:body).and_return(fake_json)
allow(fake_response).to receive(:headers).and_return('Content-Type' => 'application/json')
fake_response
end
let(:response) { described_class.new(fake_http_response) }
describe '#valid?' do
it 'is valid for a success response with parseable JSON' do
expect(response).to be_valid
end
end
describe '#check_interval' do
it 'returns the result from the JSON' do
expect(response.check_interval).to eq(42)
end
end
describe '#responsive_shards' do
it 'contains the names of working shards' do
expect(response.responsive_shards).to contain_exactly('working')
end
end
describe '#skipped_shards' do
it 'contains the names of skipped shards' do
expect(response.skipped_shards).to contain_exactly('skipped')
end
end
describe '#failing_shards' do
it 'contains the name of failing shards' do
expect(response.failing_shards).to contain_exactly('failing')
end
end
end