firehoseio/docker_server don't work. Probably em-hiredis compatibility problem

[leonardoobaptistaa]

I am having a lot of trouble making Firehose work.

the em-hiredis is not finding the redis server:

[2017-01-24 16:19:12.337 #10] DEBUG : HTTP GET with last_sequence 0 for path /hi with query "cid=2039"
[2017-01-24 16:19:12.339 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:12.340 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:12.340 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:12.840 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:12.840 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:12.840 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:12.841 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:12.841 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:12.841 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.341 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.341 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.341 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.342 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.342 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.342 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.842 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.842 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.843 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnecting
[2017-01-24 16:19:13.843 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.843 #10] ERROR : Unexpected error when trying to GET last_sequence 0 for path /hi: #<EventMachine::Hiredis::Error: Redis connection in failed state>
[2017-01-24 16:19:13.846 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.846 #10] INFO : [em-hiredis 127.0.0.1:6379] Reconnect failed
[2017-01-24 16:19:13.847 #10] ERROR : Redis connection in failed state

But redis is running on a docker container and accessible:

redis-cli -h 127.0.0.1 -p 6379 ping
PONG

Resulting on:

curl "http://127.0.0.1:7474/hi?cid=2039"
curl: (52) Empty reply from server

I tried Firehose version 1.2.13 and 1.3.6, but the em-hiredis gem version is the same.

I read this: #28
this: #19
and this: mloughran/em-hiredis#24 (mine is not showing ERROR : Use pubsub client )

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