Traffic Monitor is polling correctly. Its a rough guess, but Traffic Router may 
not be properly retrieving or processing the health status (CrStates) from 
Traffic Monitor.

You can see the status on Traffic Router at /opt/traffic_router/db/health.json. 
This file should be retrieved from TM every 5s and it should match the current 
TM reports.

Please also check the Traffic Router logs for any failures.

—Eric



On May 17, 2018, at 9:22 AM, 
yann.lev...@orange.com<mailto:yann.lev...@orange.com> wrote:

Hi Eric,
I have attached a capture of the traffic monitor screen, but caches appear to 
be ok.
I was just wondering if a “null” hashId could be a possible cause, but I don’t 
know which mandatory data are consumed and tested by the core traffic router, 
before determining a valid cache server.
Thanks
Yann

De : Eric Friedrich (efriedri) [mailto:efrie...@cisco.com]
Envoyé : jeudi 17 mai 2018 15:10
À : users@trafficcontrol.apache.org<mailto:users@trafficcontrol.apache.org>
Cc : us...@trafficcontrol.incubator.apache.org
Objet : Re: help needed for Traffic Router (error 503)

Hi Yann-
  By going to the Traffic Monitor GUI, you can see a view of the health of the 
cache. The webpage will show each cache on a separate row with current values 
for liveness, load avg and bandwidth.

You may also want to check the error log on Traffic Monitor to see if its 
having any issues reaching the edge cache astats endpoint. The current 
configuration you have below assumes that the edge cache is listening on the 
eth0 interface.

Thanks,
Eric



On May 17, 2018, at 4:51 AM, 
yann.lev...@orange.com<mailto:yann.lev...@orange.com> wrote:

Hello,

I have some trouble understanding a problem with traffic router.

After installing a new TR (version 2.1), I can’t make it work for a simple HTTP 
delivery service (service name = arte – CDN name = traffic).

wget 
http://tr.arte.traffic.inter-cdnrd.orange-business.com/ss/arte/mss_high.isml/Manifest
--2018-05-16 17:53:48--  
http://tr.arte.traffic.inter-cdnrd.orange-business.com/ss/arte/mss_high.isml/Manifest
Résolution de 
tr.arte.traffic.inter-cdnrd.orange-business.com<http://cdnrd.orange-business.com/>
 
(tr.arte.traffic.inter-cdnrd.orange-business.com<http://cdnrd.orange-business.com/>)...
 172.20.3.200
Connexion vers 
tr.arte.traffic.inter-cdnrd.orange-business.com<http://cdnrd.orange-business.com/>
 
(tr.arte.traffic.inter-cdnrd.orange-business.com<http://cdnrd.orange-business.com/>)|172.20.3.200|:80...connecté.
requête HTTP transmise, en attente de la réponse...503 Service Indisponible
2018-05-16 17:53:48 ERREUR 503: Service Indisponible.

The information in access.log is
qtype=HTTP chi=172.20.3.199 rhi=- 
url="http://tr.arte.traffic.inter-cdnrd.orange-business.com/ss/arte/mss_high.isml/Manifest";
 cqhm=GET cqhv=HTTP/1.1 rtype=MISS rloc="-" rdtl=DS_NO_BYPASS rerr="-" rgb="-" 
pssc=503 ttms=0,742 rurl="-" rurls="-" rh="-"

I guess the TR doesn’t find an available cache server but where could I find 
this information?

For example, the following TR API 
http://trafficrouter.tc.inter-cdnrd.orange-business.com:3333/crs/locations/Lannion/caches
 seems to point out that there would be no available bandwidth from the cache.
{"caches":[{"cacheId":"lannion1","fqdn":"lannion1.tc.inter-cdnrd.orange-business.com<http://lannion1.tc.inter-cdnrd.orange-business.com/>","ipAddresses":["172.20.3.198"],"port":0,"adminStatus":null,"lastUpdateHealthy":false,"lastUpdateTime":0,"connections":0,"currentBW":0,"availBW":0,"cacheOnline":true}]}
Could it be the reason why no cache is found/used by traffic router ?

I am wondering if the CR config below is ok ?
(I don’t use a CZF and it is not clear to me why it could cause some problems. )

{"contentRouters":{"trafficrouter":{"profile":"TRAFFIC_ROUTER","api.port":"3333","location":"Lannion","ip":"172.20.3.200","httpsPort":null,"status":"ONLINE","ip6":"","port":null,"fqdn":"trafficrouter.tc.inter-cdnrd.orange-business.com<http://trafficrouter.tc.inter-cdnrd.orange-business.com/>
"}},"monitors":{"trafficmonitor":{"profile":"TRAFFIC_MONITOR_PROFILE","location":"Lannion","ip":"172.20.3.199","httpsPort":443,"status":"ONLINE","ip6":"","port":80,"fqdn":"trafficmonitor.tc.inter-cdnrd.orange-business.com<http://trafficmonitor.tc.inter-cdnrd.orange-business.com/>"}},"edgeLocations":{"Lannion":{"longitude":-3,"latitude":49}},"stats":{"tm_user":"admin","tm_host":"trafficops2.tc.inter-cdnrd.orange-business.com<http://trafficops2.tc.inter-cdnrd.orange-business.com/>","tm_version":"2.1.0-6808.d7c0bdc9.el7","date":1526485974,"tm_path":"/api/1.2/cdns/2/snapshot","CDN
_name":"traffic"},"config":{"dnssec.dynamic.response.expiration":"300s","api.cache-control.max-age":"10","zonemanager.threadpool.scale":"0.50","coveragezone.polling.interval":"3600000","federationmapping.polling.interval":"60000","ste
eringmapping.polling.interval":"60000","ttls":{"A":"3600","DNSKEY":"30","DS":"30","NS":"3600","AAAA":"3600","SOA":"86400"},"weight":"1.0","geolocation.polling.interval":"86400000","soa":{"retry":"7200","admin":"admin","minimum":"30","
refresh":"28800","expire":"604800"},"dnssec.enabled":"false","federationmapping.polling.url":"https://${toHostname}/internal/api/1.2/federations.json<https://${tohostname}/internal/api/1.2/federations.json>","coveragezone.polling.url":"http://${toHostname}/cdn/CZF/current/czf-current.json<http://${tohostname}/cdn/CZF/current/czf-current.json>",
"geolocation.polling.url":"http://${toHostname}/MaxMind/auto/GeoIP2-City.mmdb.gz<http://${tohostname}/MaxMind/auto/GeoIP2-City.mmdb.gz>","zonemanager.cache.maintenance.interval":"300","keystore.maintenance.interval":"300","domain_name":"traffic.inter-cdnrd.orange-business.com<http://traffic.inter-cdnrd.orange-business.com/>","consistent
.dns.routing":"true","certificates.polling.interval":"300000","geolocation6.polling.url":"https://172.20.3.195/routing/GeoLiteCityv6.dat.gz"},"deliveryServices":{"arte":{"protocol":{"redirectToHttps":"false","acceptHttps":"false"},"re
gionalGeoBlocking":"false","ttl":3600,"geolocationProvider":"maxmindGeolocationService","sslEnabled":"false","matchsets":[{"protocol":"HTTP","matchlist":[{"regex":".*\\.arte\\..*","match-type":"HOST"}]}],"coverageZoneOnly":"false","ttls":{"A":"3600","SOA":"86400","NS":"3600","AAAA":"3600"},"domains":["arte.traffic.inter-cdnrd.orange-business.com<http://arte.traffic.inter-cdnrd.orange-business.com/>"],"ip6RoutingEnabled":"false","soa":{"admin":"admin","retry":"7200","minimum":"30","refresh":"28800","expire":"604800"},
"dispersion":{"shuffled":"true","limit":1}}},"contentServers":{"lannion1":{"profile":"EDGE_ATS_621_CENTOS_721","locationId":"Lannion","ip":"172.20.3.198","status":"REPORTED","httpsPort":443,"cacheGroup":"Lannion","ip6":"","port":80,"d
eliveryServices":{"arte":["lannion1.arte.traffic.inter-cdnrd.orange-business.com<http://arte.traffic.inter-cdnrd.orange-business.com/>"]},"fqdn":"lannion1.tc.inter-cdnrd.orange-business.com<http://lannion1.tc.inter-cdnrd.orange-business.com/>","interfaceName":"eth0","hashCount":1000,"type":"EDGE","hashId":null},"paris1":{"profile":"MID_ATS
_621_CENTOS_721","locationId":"Paris","ip":"172.20.3.197","status":"REPORTED","httpsPort":443,"cacheGroup":"Paris","ip6":"","port":80,"fqdn":"paris1.tc.inter-cdnrd.orange-business.com<http://paris1.tc.inter-cdnrd.orange-business.com/>","interfaceName":"eth0","hashCount":999,"type":"MID","hashId":null}}}

Many thanks for your help.
Best regards
Yann


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