# googlegroup

**URL:** https://discourse.nameko.io/c/googlegroup/6.md?page=3

[Latest](https://discourse.nameko.io/latest.md) · [Categories](https://discourse.nameko.io/categories.md)

**Page:** 4

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## [Accessing Nameko config from outside a service](https://discourse.nameko.io/t/accessing-nameko-config-from-outside-a-service/188)

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**Author:** [@Diego](https://discourse.nameko.io/u/Diego)\
**Replies:** 2\
**Last updated:** [April 18, 2017, 7:03pm UTC](https://discourse.nameko.io/t/accessing-nameko-config-from-outside-a-service/188 "2017-04-18T19:03:33Z")

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I have a helper class manages my database connection, but it is independent of my nameko services. I would like to access the nameko configuration from within that class, but I'm not sure how to do this. The closest …

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## [Does nameko provide a sort of RequestContext](https://discourse.nameko.io/t/does-nameko-provide-a-sort-of-requestcontext/187)

<div class="topic-metadata">

**Author:** [@Diego](https://discourse.nameko.io/u/Diego)\
**Replies:** 1\
**Last updated:** [April 14, 2017, 4:22pm UTC](https://discourse.nameko.io/t/does-nameko-provide-a-sort-of-requestcontext/187 "2017-04-14T16:22:09Z")

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Hi, I was wondering if nameko provided anything like flask's g object \<http://flask.pocoo.org/docs/0.12/api/#flask.g\> to get the current Request Context. Basically, when a request comes in, I would like to see the c…

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## [prefetch\_count override](https://discourse.nameko.io/t/prefetch-count-override/186)

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**Author:** [@Conor\_Seabrook](https://discourse.nameko.io/u/Conor_Seabrook)\
**Replies:** 3\
**Last updated:** [April 12, 2017, 8:56pm UTC](https://discourse.nameko.io/t/prefetch-count-override/186 "2017-04-12T20:56:41Z")

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Moving this discussion to the development group. https://github.com/nameko/nameko/issues/428 So I'm trying to set a prefetch\_count not tied to max\_workers based on Matt's suggestion. It seems I have something off as I…

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## [Who is using on production](https://discourse.nameko.io/t/who-is-using-on-production/178)

<div class="topic-metadata">

**Author:** [@Abhinav\_Sohani](https://discourse.nameko.io/u/Abhinav_Sohani)\
**Replies:** 4\
**Last updated:** [April 12, 2017, 1:13pm UTC](https://discourse.nameko.io/t/who-is-using-on-production/178 "2017-04-12T13:13:18Z")

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Hi All, We have a Django monolith and planning to move to microervices architecture. We came across Nameko and found it interesting. Is there list of projects using nameko in production or case studies/ articles. I…

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## [Handling Exceptions in Nameko](https://discourse.nameko.io/t/handling-exceptions-in-nameko/185)

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**Author:** [@Alfonsomm](https://discourse.nameko.io/u/Alfonsomm)\
**Replies:** 5\
**Last updated:** [April 11, 2017, 7:07am UTC](https://discourse.nameko.io/t/handling-exceptions-in-nameko/185 "2017-04-11T07:07:20Z")

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Hi, I'm trying to use Nameko for the creation of a simple notification center that sends emails consuming from several queues in RabbitMQ. Our whole architecture is service based and we have a system to write the exce…

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## [Nameko eventlet Back Door](https://discourse.nameko.io/t/nameko-eventlet-back-door/184)

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**Author:** [@simon\_harrison](https://discourse.nameko.io/u/simon_harrison)\
**Replies:** 9\
**Last updated:** [April 5, 2017, 11:57am UTC](https://discourse.nameko.io/t/nameko-eventlet-back-door/184 "2017-04-05T11:57:00Z")

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Hi devs We''re experiencing hanging services in production. Previously I've used the eventlet backdoor to telnet in and inspect what workers are in flight and what they are executing, but I cannot remember the steps t…

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## [Rabbit Connection Behaviour](https://discourse.nameko.io/t/rabbit-connection-behaviour/182)

<div class="topic-metadata">

**Author:** [@simon\_harrison](https://discourse.nameko.io/u/simon_harrison)\
**Replies:** 4\
**Last updated:** [March 31, 2017, 2:01pm UTC](https://discourse.nameko.io/t/rabbit-connection-behaviour/182 "2017-03-31T14:01:18Z")

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Hi Devs I'd like to confirm the behaviour of service connections to RabbitMQ when we have services A and B, where A only has HTTP entrypoints but has an RpcProxy to B, and B obviously has RPC entrypoints. When we sta…

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## [Meaning of "Disconnected while waiting for reply"](https://discourse.nameko.io/t/meaning-of-disconnected-while-waiting-for-reply/181)

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**Author:** [@Richard](https://discourse.nameko.io/u/Richard)\
**Replies:** 4\
**Last updated:** [March 27, 2017, 1:46pm UTC](https://discourse.nameko.io/t/meaning-of-disconnected-while-waiting-for-reply/181 "2017-03-27T13:46:48Z")

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I've just deployed a nameko service (http) which calls another nameko service over rpc and am getting this error randomly but quite often. RpcConnectionError("Disconnected while waiting for reply") While this error is…

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## [Multiple services with @http?](https://discourse.nameko.io/t/multiple-services-with-http/180)

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**Author:** [@Tsachi\_Shuval](https://discourse.nameko.io/u/Tsachi_Shuval)\
**Replies:** 3\
**Last updated:** [March 26, 2017, 1:17pm UTC](https://discourse.nameko.io/t/multiple-services-with-http/180 "2017-03-26T13:17:20Z")

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Hi We have two services that require using the @http decorator. The problem is that the first service that launches "catches" the port, so the second service fails with "address already in use" exception. How can thi…

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## [Service deadlock when request volume increases](https://discourse.nameko.io/t/service-deadlock-when-request-volume-increases/145)

<div class="topic-metadata">

**Author:** [@simon\_harrison](https://discourse.nameko.io/u/simon_harrison)\
**Replies:** 7\
**Last updated:** [March 23, 2017, 3:03pm UTC](https://discourse.nameko.io/t/service-deadlock-when-request-volume-increases/145 "2017-03-23T15:03:13Z")

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Hi Devs We're coming across this situation more and more in existing services and new services. The deadlock occurs when one service receives more incoming requests than workers are available for it, and as part of ea…

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## [Exposing correlation ids for logging](https://discourse.nameko.io/t/exposing-correlation-ids-for-logging/179)

<div class="topic-metadata">

**Author:** [@adwhit](https://discourse.nameko.io/u/adwhit)\
**Replies:** 2\
**Last updated:** [March 21, 2017, 10:17am UTC](https://discourse.nameko.io/t/exposing-correlation-ids-for-logging/179 "2017-03-21T10:17:00Z")

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Hi, I have what I imagine to be a fairly common problem with microservices setups - namely, that when logging events, I would like to be able to track a particular request as it progresses through various RPC calls. T…

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## [Catching events when a service ist stopped](https://discourse.nameko.io/t/catching-events-when-a-service-ist-stopped/174)

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**Author:** [@Andreas\_Fehl](https://discourse.nameko.io/u/Andreas_Fehl)\
**Replies:** 2\
**Last updated:** [March 20, 2017, 1:30pm UTC](https://discourse.nameko.io/t/catching-events-when-a-service-ist-stopped/174 "2017-03-20T13:30:19Z")

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Hi there, I'm runnig several services in my cluster and i'd like to implement some kind of self monitoring. A dashboard should show what services are running, how many instances are out there and what are the hostname…

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## [Shared RPC-mixins](https://discourse.nameko.io/t/shared-rpc-mixins/175)

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**Author:** [@Trikster1911](https://discourse.nameko.io/u/Trikster1911)\
**Replies:** 3\
**Last updated:** [March 20, 2017, 9:45am UTC](https://discourse.nameko.io/t/shared-rpc-mixins/175 "2017-03-20T09:45:54Z")

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Hello there! We're a bunch of microservices on top of nameko and are interested in sharing the code-base across multiple instances. Currently we have our own library to share the code but we've faced the difficulty in …

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## [Remove access log from stderr for @http decorator](https://discourse.nameko.io/t/remove-access-log-from-stderr-for-http-decorator/177)

<div class="topic-metadata">

**Author:** [@Trex\_Boolat](https://discourse.nameko.io/u/Trex_Boolat)\
**Replies:** 5\
**Last updated:** [March 19, 2017, 10:05pm UTC](https://discourse.nameko.io/t/remove-access-log-from-stderr-for-http-decorator/177 "2017-03-19T22:05:20Z")

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Now eventlet.wsgi.Server in "nameko\\web\\server.py" leave log\_output=True and log=None So all access log like 127.0.0.1 - \* \[18/Mar/2017 00:57:12\] "GET /health HTTP/1.1" 200 140 0.001000 127.0.0.1 - \* \[18/Mar/2017 00:…

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## [Yaml types and Nameko environment variable substitution](https://discourse.nameko.io/t/yaml-types-and-nameko-environment-variable-substitution/176)

<div class="topic-metadata">

**Author:** [@Trex\_Boolat](https://discourse.nameko.io/u/Trex_Boolat)\
**Replies:** 5\
**Last updated:** [March 19, 2017, 9:33pm UTC](https://discourse.nameko.io/t/yaml-types-and-nameko-environment-variable-substitution/176 "2017-03-19T21:33:17Z")

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When we use flow Jijnja2 -\> Nameko yaml files receive substitution values BEFORE PyYaml type resolver #before Jinja2 processing b: {{var\_b}} #after Jinja2 processing b: 4242 #in nameko config { 'a': True, 'b': 42…

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## [Sending object to Nameko from logstash via rabbitmq](https://discourse.nameko.io/t/sending-object-to-nameko-from-logstash-via-rabbitmq/172)

<div class="topic-metadata">

**Author:** [@Simone\_Pontiggia](https://discourse.nameko.io/u/Simone_Pontiggia)\
**Replies:** 1\
**Last updated:** [March 11, 2017, 11:13am UTC](https://discourse.nameko.io/t/sending-object-to-nameko-from-logstash-via-rabbitmq/172 "2017-03-11T11:13:55Z")

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Godd evening to everyone, I've a nameko method annotated like this: @event\_handler("logstash\_in", "new\_item") def new\_item\_event(self, item\_type, item\_body): do\_stuff\_with(item\_body) And I would like to send a m…

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## [Performance monitoring for nameko services](https://discourse.nameko.io/t/performance-monitoring-for-nameko-services/144)

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**Author:** [@Jesse\_Pollak](https://discourse.nameko.io/u/Jesse_Pollak)\
**Replies:** 4\
**Last updated:** [March 11, 2017, 2:08am UTC](https://discourse.nameko.io/t/performance-monitoring-for-nameko-services/144 "2017-03-11T02:08:00Z")

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Hi, we're in the process of re-evaluating whether it makes sense to keep paying our big New Relic subscription. We've been using nameko more and more, but haven't yet done any serious performance monitoring, so it's a …

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## [nameko-logstash](https://discourse.nameko.io/t/nameko-logstash/126)

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**Author:** [@Conor\_Seabrook](https://discourse.nameko.io/u/Conor_Seabrook)\
**Replies:** 3\
**Last updated:** [February 24, 2017, 4:05pm UTC](https://discourse.nameko.io/t/nameko-logstash/126 "2017-02-24T16:05:31Z")

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Hey Guys, Was wondering if the logstash extension was in development and when it might be available. I recently spun up an ELK stack to play around with and now it would be great to get some centralized logging going …

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## [Nameko in production](https://discourse.nameko.io/t/nameko-in-production/157)

<div class="topic-metadata">

**Author:** [@Johan\_Frisell](https://discourse.nameko.io/u/Johan_Frisell)\
**Replies:** 10\
**Last updated:** [February 20, 2017, 1:49pm UTC](https://discourse.nameko.io/t/nameko-in-production/157 "2017-02-20T13:49:05Z")

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First of all: thanks for a great lib! You really nailed it here guys. I'm involved in a quite large project were nameko is one of the proposed micro services frameworks. However we have a discussion atm regarding namek…

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## [Best pagination ordering and filtering practices.](https://discourse.nameko.io/t/best-pagination-ordering-and-filtering-practices/171)

<div class="topic-metadata">

**Author:** [@Trikster1911](https://discourse.nameko.io/u/Trikster1911)\
**Replies:** 1\
**Last updated:** [February 17, 2017, 4:26pm UTC](https://discourse.nameko.io/t/best-pagination-ordering-and-filtering-practices/171 "2017-02-17T16:26:29Z")

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Hello there! We're currently in a process of rewriting our monolithic django web applications into a set of nameko-based microservices. We heavily utilized django-rest-framework URL filters which allowed us to build p…

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## [How to have just one instance of a dependency?](https://discourse.nameko.io/t/how-to-have-just-one-instance-of-a-dependency/170)

<div class="topic-metadata">

**Author:** [@Richard](https://discourse.nameko.io/u/Richard)\
**Replies:** 2\
**Last updated:** [February 10, 2017, 11:37am UTC](https://discourse.nameko.io/t/how-to-have-just-one-instance-of-a-dependency/170 "2017-02-10T11:37:37Z")

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I'm converting a flask app to a nameko service, in the old flask all there was a globally instantiated class which takes about 5 seconds to init. I've refactored this into a nameko dependency, roughly looking like: cl…

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## [Handling many database connections](https://discourse.nameko.io/t/handling-many-database-connections/169)

<div class="topic-metadata">

**Author:** [@Mattias\_Lundberg](https://discourse.nameko.io/u/Mattias_Lundberg)\
**Replies:** 2\
**Last updated:** [February 9, 2017, 3:10pm UTC](https://discourse.nameko.io/t/handling-many-database-connections/169 "2017-02-09T15:10:28Z")

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Hi, Thanks for a nice library, it have helped us extend our application in a nice way! We're breaking out parts of our application (built in Django) and are using nameko to do communication between the old applicatio…

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## [Making a one-way rpc-like entrypoint](https://discourse.nameko.io/t/making-a-one-way-rpc-like-entrypoint/160)

<div class="topic-metadata">

**Author:** [@Tsachi\_Shuval](https://discourse.nameko.io/u/Tsachi_Shuval)\
**Replies:** 4\
**Last updated:** [February 9, 2017, 11:36am UTC](https://discourse.nameko.io/t/making-a-one-way-rpc-like-entrypoint/160 "2017-02-09T11:36:15Z")

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Hi, How can the "rpc" decorator (Rpc class) be tweaked in a way that it does not create a reply queue and send responses? Some of our service methods are one-way and we don't want/need the overhead of reply queues. Th…

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## [Custom Serializer Error](https://discourse.nameko.io/t/custom-serializer-error/168)

<div class="topic-metadata">

**Author:** [@7ooony](https://discourse.nameko.io/u/7ooony)\
**Replies:** 1\
**Last updated:** [February 9, 2017, 10:43am UTC](https://discourse.nameko.io/t/custom-serializer-error/168 "2017-02-09T10:43:59Z")

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Hi, I tried to follow the example here https://github.com/nameko/nameko/blob/master/test/test\_serialization.py#L176-L209 to use a custom serializer, but with my code below I got this error when calling n.rpc.service\_…

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## [Generic documentation mechanism.](https://discourse.nameko.io/t/generic-documentation-mechanism/167)

<div class="topic-metadata">

**Author:** [@Trikster1911](https://discourse.nameko.io/u/Trikster1911)\
**Replies:** 2\
**Last updated:** [February 7, 2017, 1:57pm UTC](https://discourse.nameko.io/t/generic-documentation-mechanism/167 "2017-02-07T13:57:43Z")

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Hello there, is there any way to properly document RPC calls, dependencies, published events and events service is subscribed to? Something like swagger for REST APIs? We are developing multiple services and are inter…

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## [ServiceRpcProxy/ClusterRpcProxy equivalent for @event\_handler](https://discourse.nameko.io/t/servicerpcproxy-clusterrpcproxy-equivalent-for-event-handler/140)

<div class="topic-metadata">

**Author:** [@Jungflor](https://discourse.nameko.io/u/Jungflor)\
**Replies:** 7\
**Last updated:** [January 20, 2017, 11:13pm UTC](https://discourse.nameko.io/t/servicerpcproxy-clusterrpcproxy-equivalent-for-event-handler/140 "2017-01-20T23:13:57Z")

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Hey, I have a somewhat extensive project that manages/runs plugins and uses a priority queue to route messages/objects between them. Now I am starting to transition some of the plugins to nameko services, but I can't …

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## [How to create RpcProxy in rpc call?](https://discourse.nameko.io/t/how-to-create-rpcproxy-in-rpc-call/165)

<div class="topic-metadata">

**Author:** [@Przemyslaw\_Gorecki](https://discourse.nameko.io/u/Przemyslaw_Gorecki)\
**Replies:** 4\
**Last updated:** [January 13, 2017, 5:13pm UTC](https://discourse.nameko.io/t/how-to-create-rpcproxy-in-rpc-call/165 "2017-01-13T17:13:05Z")

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I have the following scenatio: all requests are coming to Supervior service, which receives requests and passes them to workers. Workers can be spawned dynamically. class WorkerService(object): name = 'worker\_' +…

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## [Validation of nameko Usage Pattern](https://discourse.nameko.io/t/validation-of-nameko-usage-pattern/164)

<div class="topic-metadata">

**Author:** [@Mick](https://discourse.nameko.io/u/Mick)\
**Replies:** 6\
**Last updated:** [December 7, 2016, 12:58pm UTC](https://discourse.nameko.io/t/validation-of-nameko-usage-pattern/164 "2016-12-07T12:58:15Z")

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Hi Newbie python development. We are putting together a microservice in python and have been using nameko as the basis. So far so good! We are seeing some performance issues and before we start to look into these i…

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## [nameko and HA rabbit](https://discourse.nameko.io/t/nameko-and-ha-rabbit/161)

<div class="topic-metadata">

**Author:** [@Tsachi\_Shuval](https://discourse.nameko.io/u/Tsachi_Shuval)\
**Replies:** 12\
**Last updated:** [December 6, 2016, 10:49am UTC](https://discourse.nameko.io/t/nameko-and-ha-rabbit/161 "2016-12-06T10:49:10Z")

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Hi, Our rabbitmq cluster consists of 3 servers clustered in HA-all policy. Due to disk errors, out master node went down, and all our clients started throwing errors. We expected them to connect to the elected slave, …

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## [Programmatically adding endpoints](https://discourse.nameko.io/t/programmatically-adding-endpoints/162)

<div class="topic-metadata">

**Author:** [@adwhit](https://discourse.nameko.io/u/adwhit)\
**Replies:** 2\
**Last updated:** [November 28, 2016, 4:36pm UTC](https://discourse.nameko.io/t/programmatically-adding-endpoints/162 "2016-11-28T16:36:13Z")

</div>

Hi, thanks for making a great library. Question: Is there a way to programmatically add endpoints to services? e.g. suppose I have a large dict of (endpoint, function) pairs def myf1(): return "foo" def myf2(): …

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