gheidorn
I’m trying to get started with kafka_ex and can’t seem to even get it configured correctly. I am using the out of the box config with just the broker changed to localhost:2181 (testing locally). When I run my IEX session, I get this error:
22:49:31.422 [debug] Succesfully connected to broker "localhost":2181
22:49:31.442 [error] Receiving data from broker "localhost":2181 failed with :closed
22:49:31.442 [error] Unable to fetch metadata from any brokers. Timeout is 3000.
22:49:31.454 [info] Application kafka_ex exited: KafkaEx.start(:normal, []) returned an error: an exception was raised:
** (RuntimeError) Unable to fetch metadata from any brokers. Timeout is 3000.
(kafka_ex) lib/kafka_ex/server.ex:393: KafkaEx.Server0P9P0.retrieve_metadata/6
(kafka_ex) lib/kafka_ex/server_0_p_9_p_0.ex:62: KafkaEx.Server0P9P0.kafka_server_init/1
(stdlib) gen_server.erl:365: :gen_server.init_it/2
(stdlib) gen_server.erl:333: :gen_server.init_it/6
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
** (Mix) Could not start application kafka_ex: KafkaEx.start(:normal, []) returned an error: an exception was raised:
** (RuntimeError) Unable to fetch metadata from any brokers. Timeout is 3000.
(kafka_ex) lib/kafka_ex/server.ex:393: KafkaEx.Server0P9P0.retrieve_metadata/6
(kafka_ex) lib/kafka_ex/server_0_p_9_p_0.ex:62: KafkaEx.Server0P9P0.kafka_server_init/1
(stdlib) gen_server.erl:365: :gen_server.init_it/2
(stdlib) gen_server.erl:333: :gen_server.init_it/6
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Any ideas on what I might be doing wrong? Thanks in advance!
Where Next?
Trending in Questions
Other Trending Topics
Latest on Elixir Forum
Sponsor Spotlight
Enabling companies to succeed by building software people love.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #blog-post
- #elixir-ls
- #elixirconf-us
- #ai
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #hex
- #security
- #metaprogramming
Our Sponsors
Build Elixir applications with speed and confidence.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Elixir, Erlang & BEAM conferences from Code Sync - join us in 2026!
Practical resources that improve the lives of professional developers.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
Showing Posts 1 to 2- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
IanVaughan
Hi, silly question, but are you sure your broker is on 2181? As normally it binds to 9092.
The error is what I get when I’ve not started the kafka broker.
gheidorn
Not a silly question at all. I totally made this mistake! Thank you for your reply.