hystrix.stream URI getting 503 MaxConcurrentConnections reached

[rajanalagspann]

We are using Hystrix 1.5.9 frame in our application, we have setup the hystrix dashboard and hystrix turbine for monitoring.

We are observing lot of 503s for hystrix.stream url requests from turbine application to business application where the actual services are implemented with hystrix framework.

Anyone have idea how we can fix this.

HTTP ERROR 503

Problem accessing /hystrix.stream. Reason:

    MaxConcurrentConnections reached: 5

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Powered by Jetty:// 9.4.0.v20161208

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Could you please help how to resolve this.

[foobaar]

So, 1. you can set the following property to increase the number of concurrent connections: hystrix.stream.maxConcurrentConnections

I'm not sure if that would fix your issue though. We had a similar issue when using websphere. What appserver are you using??

[rajanalagspann]

We are using Jetty server, we will try this option

[mattnelson]

Judging by the output on the screenshot there are no commands being reported which did lead to leaked connections (#1430) that was fixed in 1.5.9. I confirmed it fixed my issue which was presenting itself the same as you are describing. I would try upgrading to 1.5.12.

[rajanalagspann]

Thanks for response, we will upgrading to 1.5.12, will update that worked for us or not

[fatal-exception]

@rajanalagspann out of interest, did the upgrade work for you? We are seeing the same issue on our site now

[mauliktrapas]

@foobaar please help with - how to provide hystrix.stream.maxConcurrentConnections configuration in dropwizard application?

[ThinkingMan007]

好的，我已收到。

[foobaar]

@mauliktrapas I had to do something like this: https://github.com/foobaar/Hystrix/blob/bb4be57d5cb2186bc37fdd7d460f2cbd991edbe9/hystrix-contrib/hystrix-metrics-event-stream/src/main/java/com/netflix/hystrix/contrib/metrics/eventstream/HystrixMetricsStreamServlet.java#L56

This was quite a few years ago now, i haven't kept up with this project.