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fix monitoring api integration race condition

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because the metric subsystem may not be ready yet when the tests ask for
the values, the test code may generate a NoMethodError accessing nested
hashes.

The NoMethodError exception aborts the try mechanism instead of retrying.

This PR rescues potential exceptions and adds more expectations to
protect the try block.

Fixes #7074
This commit is contained in:
Joao Duarte 2017-05-11 13:29:18 +01:00 • committed by João Duarte
parent 1113f0cffc
commit 838f593d1a
1 changed files with 12 additions and 5 deletions
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17
qa/integration/specs/monitoring_api_spec.rb
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@ -27,8 +27,9 @@ describe "Test Monitoring API" do
number_of_events.times { logstash_service.write_to_stdin("Hello world") }
Stud.try(max_retry.times, RSpec::Expectations::ExpectationNotMetError) do
result = logstash_service.monitoring_api.event_stats
expect(result["in"]).to eq(number_of_events)
# event_stats can fail if the stats subsystem isn't ready
result = logstash_service.monitoring_api.event_stats rescue {}
expect(result["in"]).to eq(number_of_events)
end
end
@ -38,8 +39,11 @@ describe "Test Monitoring API" do
logstash_service.wait_for_logstash
Stud.try(max_retry.times, RSpec::Expectations::ExpectationNotMetError) do
result = logstash_service.monitoring_api.node_stats
expect(result["jvm"]["uptime_in_millis"]).to be > 100
# node_stats can fail if the stats subsystem isn't ready
result = logstash_service.monitoring_api.node_stats rescue nil
expect(result).not_to be_nil
expect(result["jvm"]).not_to be_nil
expect(result["jvm"]["uptime_in_millis"]).to be > 100
end
end
@ -49,7 +53,10 @@ describe "Test Monitoring API" do
logstash_service.wait_for_logstash
Stud.try(max_retry.times, RSpec::Expectations::ExpectationNotMetError) do
result = logstash_service.monitoring_api.node_stats
# node_stats can fail if the stats subsystem isn't ready
result = logstash_service.monitoring_api.node_stats rescue nil
expect(result).not_to be_nil
expect(result["pipeline"]).not_to be_nil
expect(result["pipeline"]["queue"]).not_to be_nil
if logstash_service.settings.feature_flag == "persistent_queues"
expect(result["pipeline"]["queue"]["type"]).to eq "persisted"