assertion failure

[2017-03-15 04:30:39.095][21][debug][upstream] cds: starting request
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206] cluster 'cds' match for URL '/v1/clusters/istio-proxy/10.12.1.83'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   ':method':'GET'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   ':path':'/v1/clusters/istio-proxy/10.12.1.83'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   ':authority':'cds'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   'x-envoy-internal':'true'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   'x-forwarded-for':'10.12.1.83'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   'x-envoy-expected-rq-timeout-ms':'1000'
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206]   ':scheme':'http'
[2017-03-15 04:30:39.095][21][debug][pool] [C11] using existing connection
[2017-03-15 04:30:39.095][21][debug][router] [C0][S226375851332206] pool ready
[2017-03-15 04:30:39.098][21][debug][router] [C0][S226375851332206] upstream headers complete: end_stream=false
[2017-03-15 04:30:39.098][21][debug][http] async http request response headers (end_stream=false):
[2017-03-15 04:30:39.098][21][debug][http]   'content-type':'application/json'
[2017-03-15 04:30:39.098][21][debug][http]   'date':'Wed, 15 Mar 2017 04:30:39 GMT'
[2017-03-15 04:30:39.098][21][debug][http]   'transfer-encoding':'chunked'
[2017-03-15 04:30:39.098][21][debug][http]   ':status':'200'
[2017-03-15 04:30:39.098][21][debug][http]   'x-envoy-upstream-service-time':'2'
[2017-03-15 04:30:39.099][21][debug][client] [C11] response complete
[2017-03-15 04:30:39.099][21][debug][upstream] cds: parsing response
[2017-03-15 04:30:39.102][21][critical][assert] assert failure: name.size() <= MAX_NAME_SIZE: external/envoy_git/source/common/stats/stats_impl.cc:28
I0315 04:30:39.104533       1 agent.go:187] Envoy epoch 2 terminated: signal: aborted