sven-lange-last commented on issue #2995: At most 10 `docker run` commands are allowed in parallel URL: https://github.com/apache/incubator-openwhisk/pull/2995#issuecomment-346445560 @csantanapr - your questions: > Should we have an issue open to talk/discuss/track/investigate to update to new version of docker? > > If user uses newer version of docker on its own can it have more paralllels running? It needs to configure an ansible setting? * A [search in the incubator-openwhisk repo](https://github.com/apache/incubator-openwhisk/search?utf8=%E2%9C%93&q=%221.12%22&type=) shows that we require / base on Docker version 1.12.x. At the moment, there is no _real_ support for later or even multiple Docker versions. * While I think updating the Docker version may bring benefits, IBMs experience is that updating the Docker version implies non-negligible risk of failures and performance degradation. For this reason, this activity means considerable effort and needs a conscious decision. * As long as we do not officially support multiple Docker versions, we should not spend the effort to introduce an Ansible setting to control the `docker run` command concurrency.
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