c.Check(rows, check.Equals, 1, check.Commentf("expect 1 row for user uuid %s", userUUID))
}
}
+
+func (s *HandlerSuite) TestLogLimiting(c *check.C) {
+ s.handler.Cluster.API.MaxConcurrentRequests = 2
+ s.handler.Cluster.API.LogCreateRequestFraction = 0.5
+
+ logreq := httptest.NewRequest("POST", "/arvados/v1/logs", strings.NewReader(`{
+ "log": {
+ "event_type": "test"
+ }
+ }`))
+ logreq.Header.Set("Authorization", "Bearer "+arvadostest.ActiveToken)
+
+ // Log create succeeds
+ for i := 0; i < 2; i++ {
+ resp := httptest.NewRecorder()
+ s.handler.ServeHTTP(resp, logreq)
+ c.Check(resp.Code, check.Equals, http.StatusOK)
+ var lg arvados.Log
+ err := json.Unmarshal(resp.Body.Bytes(), &lg)
+ c.Check(err, check.IsNil)
+ c.Check(lg.UUID, check.Matches, "zzzzz-57u5n-.*")
+ }
+
+ // Pretend there's a log create in flight
+ s.handler.limitLogCreate <- struct{}{}
+
+ // Log create should be rejected now
+ resp := httptest.NewRecorder()
+ s.handler.ServeHTTP(resp, logreq)
+ c.Check(resp.Code, check.Equals, http.StatusServiceUnavailable)
+
+ // Other requests still succeed
+ req := httptest.NewRequest("GET", "/arvados/v1/users/current", nil)
+ req.Header.Set("Authorization", "Bearer "+arvadostest.ActiveToken)
+ resp = httptest.NewRecorder()
+ s.handler.ServeHTTP(resp, req)
+ c.Check(resp.Code, check.Equals, http.StatusOK)
+ var u arvados.User
+ err := json.Unmarshal(resp.Body.Bytes(), &u)
+ c.Check(err, check.IsNil)
+ c.Check(u.UUID, check.Equals, arvadostest.ActiveUserUUID)
+
+ // log create still fails
+ resp = httptest.NewRecorder()
+ s.handler.ServeHTTP(resp, logreq)
+ c.Check(resp.Code, check.Equals, http.StatusServiceUnavailable)
+
+ // Pretend in-flight log is done
+ <-s.handler.limitLogCreate
+
+ // log create succeeds again
+ resp = httptest.NewRecorder()
+ s.handler.ServeHTTP(resp, logreq)
+ c.Check(resp.Code, check.Equals, http.StatusOK)
+
+}