Gateway timeout (504) happens intermittently #2

This happens when accessing a entities of a hub.

GET http://staging.bithub.com/api/v3/services?embed_id=147 504 (Gateway Time-out)

jquery@2.2.1:3 GET http://staging.bithub.com/api/v3/services?embed_id=131 504 (Gateway Time-out)re.cors.t.crossDomain.send @ jquery@2.2.1:3oe.extend.ajax @ jquery@2.2.1:3n @ bithub-social.js:77(anonymous function) @ bithub-social.js:77(anonymous function) @ bithub-social.js:77(anonymous function) @ bithub-social.js:77t.Model.List.t.List.extend.setup @ bithub-social.js:77t.extend.newInstance @ bithub-social.js:59s @ bithub-social.js:59undefined.a @ bithub-social.js:59o.default.Model.extend.define.services.get @ bithub-social.js:189e.simpleExtend.getValueAndBind @ bithub-social.js:63_on @ bithub-social.js:81(anonymous function) @ bithub-social.js:81(anonymous function) @ bithub-social.js:63i.bindAndSetup @ bithub-social.js:49t.Compute.temporarilyBind @ bithub-social.js:81t.simpleExtend.get @ bithub-social.js:81p @ bithub-social.js:83t.Map.t.Construct.extend.___get @ bithub-social.js:65t.Map.t.Construct.extend.__get @ bithub-social.js:65t.Map.t.Construct.extend._get @ bithub-social.js:65t.Map.t.Construct.extend.attr @ bithub-social.js:65t.propertyReaders.read @ bithub-social.js:79t @ bithub-social.js:79t.simpleExtend._read @ bithub-social.js:91t.simpleExtend.read @ bithub-social.js:91a @ bithub-social.js:87c @ bithub-social.js:87e.simpleExtend.getValueAndBind @ bithub-social.js:63e.compute.on @ bithub-social.js:87(anonymous function) @ bithub-social.js:81(anonymous function) @ bithub-social.js:63i.bindAndSetup @ bithub-social.js:49t.Compute.temporarilyBind @ bithub-social.js:81o @ bithub-social.js:111s @ bithub-social.js:111v.value @ bithub-social.js:111y.args @ bithub-social.js:111y.evaluator @ bithub-social.js:111v.makeEvaluator @ bithub-social.js:129(anonymous function) @ bithub-social.js:129targetCallback @ bithub-social.js:131r @ bithub-social.js:127hydrate @ bithub-social.js:127i @ bithub-social.js:107(anonymous function) @ bithub-social.js:107(anonymous function) @ bithub-social.js:63c @ bithub-social.js:129(anonymous function) @ bithub-social.js:129e.simpleExtend.getValueAndBind @ bithub-social.js:63_on @ bithub-social.js:81(anonymous function) @ bithub-social.js:81(anonymous function) @ bithub-social.js:63i.bindAndSetup @ bithub-social.js:49(anonymous function) @ bithub-social.js:129targetCallback @ bithub-social.js:131r @ bithub-social.js:127hydrate @ bithub-social.js:127i @ bithub-social.js:107(anonymous function) @ bithub-social.js:107(anonymous function) @ bithub-social.js:63s.if @ bithub-social.js:109(anonymous function) @ bithub-social.js:111e.simpleExtend.getValueAndBind @ bithub-social.js:63_on @ bithub-social.js:81(anonymous function) @ bithub-social.js:81(anonymous function) @ bithub-social.js:63i.bindAndSetup @ bithub-social.js:49(anonymous function) @ bithub-social.js:129targetCallback @ bithub-social.js:131r @ bithub-social.js:127hydrate @ bithub-social.js:127i @ bithub-social.js:107(anonymous function) @ bithub-social.js:107(anonymous function) @ bithub-social.js:63s.if @ bithub-social.js:109(anonymous function) @ bithub-social.js:111e.simpleExtend.getValueAndBind @ bithub-social.js:63e.simpleExtend.updateCompute @ bithub-social.js:63e.simpleExtend.dependencyChange @ bithub-social.js:63e.simpleExtend.onDependencyChange @ bithub-social.js:63t.dispatch @ bithub-social.js:31t.batch.trigger @ bithub-social.js:61s @ bithub-social.js:81t.simpleExtend.updater @ bithub-social.js:81e.simpleExtend.updateCompute @ bithub-social.js:63e.simpleExtend.dependencyChange @ bithub-social.js:63e.simpleExtend.onDependencyChange @ bithub-social.js:63t.dispatch @ bithub-social.js:31t.batch.trigger @ bithub-social.js:61s @ bithub-social.js:81t.simpleExtend.updater @ bithub-social.js:81e.simpleExtend.updateCompute @ bithub-social.js:63e.simpleExtend.dependencyChange @ bithub-social.js:63e.simpleExtend.onDependencyChange @ bithub-social.js:63t.dispatch @ bithub-social.js:31t.batch.trigger @ bithub-social.js:61t.Map.t.Construct.extend._triggerChange @ bithub-social.js:65e.extend._triggerChange @ bithub-social.js:67t.Map.t.Construct.extend.__set @ bithub-social.js:65a.__set @ bithub-social.js:85e.extend.__set @ bithub-social.js:67t.Map.t.Construct.extend._set @ bithub-social.js:65t.Map.t.Construct.extend.attr @ bithub-social.js:65(anonymous function) @ bithub-social.js:179(anonymous function) @ jquery@2.2.1:2l @ jquery@2.2.1:2c.fireWith @ jquery@2.2.1:2i.(anonymous function) @ jquery@2.2.1:2l @ jquery@2.2.1:2c.add @ jquery@2.2.1:2(anonymous function) @ jquery@2.2.1:2l @ jquery@2.2.1:2c.fireWith @ jquery@2.2.1:2(anonymous function) @ bithub-social.js:77(anonymous function) @ jquery@2.2.1:2l @ jquery@2.2.1:2c.fireWith @ jquery@2.2.1:2r @ jquery@2.2.1:3(anonymous function) @ jquery@2.2.1:3
jquery@2.2.1:3