abacus collector doesn't work



I am trying to run abacus in my cloudfoundry env. However after successfully push all abacus applications into CF, I found following error from some of the applications:

dmadmin(a)dmadmin-Lenovo-Product:~/cloudfoundry/cf-abacus/cf-abacus$ cf logs abacus-usage-aggregator
Connected, tailing logs for app abacus-usage-aggregator in org cf / space space as admin...

2015-11-04T04:33:36.47-0500 [App/0] OUT 2015-11-04T09:33:36.469Z e-abacus-request 46 Request error { message: 'connect ECONNREFUSED',
2015-11-04T04:33:36.47-0500 [App/0] OUT code: 'ECONNREFUSED',
2015-11-04T04:33:36.47-0500 [App/0] OUT errno: 'ECONNREFUSED',
2015-11-04T04:33:36.47-0500 [App/0] OUT syscall: 'connect' } - Error: connect ECONNREFUSED
2015-11-04T04:33:36.47-0500 [App/0] OUT at exports._errnoException (util.js:746:11)
2015-11-04T04:33:36.47-0500 [App/0] OUT at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1010:19)

Same as abacus-usage-collector. "npm run demo" also failed which may due to this error. Could it be CF configuration issue? How could I enable verbose log or debug? Any help would be appreciated.


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