3 ms·

Test Load Balancer

26 points by speedkills 11y ago

kunday 11y ago
Is this project still maintained? I don't see any commits since 2013. I saw a demo of this when I used to work at TW and gave it a shot and it worked like a charm. Unfortunately, I couldn't find any rspec3 runners!
- speedkills 11y ago
  I am not sure, maybe it is just done and they don't have any major bugs? I do know the recently open sourced go.cd continuous deployment software is planning on integrating TLB so maybe they will take over maintenance if needed.
TheAceOfHearts 11y ago
This seems really awesome. I'm using CircleCI, they have an experimental option to collect junit xml files and give you a nicer output as well as try to make parallelization smarter, but the smart parallelization feature only works when you're using the inferred test command :(. One really nice feature that caught my eye: "In addition to balancing, TLB does other interesting things like re-order tests within a subset(set of tests that run on a partition) before they are executed. For instance, it re-arranges tests to execute failing ones(that failed in previous build) first, hence ensuring early feedback." I haven't read through the docs in detail, so maybe this is a stupid question, but wouldn't it be better to have a single service that includes the data and balancer and exposes functionality through a REST API? Then you could use it with any language, without having to install java on the machines that are running your test.
- kunday 11y ago
  I agree. The primary purpose of the server is to split the tests and send them for execution. I started this as a side project[1], but never got much further with it. 1. https://github.com/kunday/getting_dumped https://github.com/kunday/getting_dumped
cburgmer 11y ago
Alternatively for RSpec and friends there's https://github.com/grosser/parallel_tests https://github.com/grosser/parallel_tests. Works without a centralised server.
- speedkills 11y ago
  I do like parallel_tests for rspec but specifically like that TLB is multiplatform as we use many test engines in my shop for our Ruby, JS, Scala, C#, and Swift code. I don't mind installing a jvm but really appreciate setting up one server and being able to leverage it for multiple code bases.

26 points by speedkills 11y ago

Is this project still maintained? I don't see any commits since 2013. I saw a demo of this when I used to work at TW and gave it a shot and it worked like a charm. Unfortunately, I couldn't find any rspec3 runners!

speedkills 11y ago
I am not sure, maybe it is just done and they don't have any major bugs? I do know the recently open sourced go.cd continuous deployment software is planning on integrating TLB so maybe they will take over maintenance if needed.

TheAceOfHearts 11y ago

This seems really awesome. I'm using CircleCI, they have an experimental option to collect junit xml files and give you a nicer output as well as try to make parallelization smarter, but the smart parallelization feature only works when you're using the inferred test command :(. One really nice feature that caught my eye: "In addition to balancing, TLB does other interesting things like re-order tests within a subset(set of tests that run on a partition) before they are executed. For instance, it re-arranges tests to execute failing ones(that failed in previous build) first, hence ensuring early feedback." I haven't read through the docs in detail, so maybe this is a stupid question, but wouldn't it be better to have a single service that includes the data and balancer and exposes functionality through a REST API? Then you could use it with any language, without having to install java on the machines that are running your test.

kunday 11y ago
I agree. The primary purpose of the server is to split the tests and send them for execution. I started this as a side project[1], but never got much further with it. 1. https://github.com/kunday/getting_dumped https://github.com/kunday/getting_dumped

cburgmer 11y ago

Alternatively for RSpec and friends there's https://github.com/grosser/parallel_tests https://github.com/grosser/parallel_tests. Works without a centralised server.

speedkills 11y ago
I do like parallel_tests for rspec but specifically like that TLB is multiplatform as we use many test engines in my shop for our Ruby, JS, Scala, C#, and Swift code. I don't mind installing a jvm but really appreciate setting up one server and being able to leverage it for multiple code bases.