1555046 - [wpt-sync] Sync PR 17047 - Switch to random OS port retrieval for webdriver server

Status: RESOLVED FIXED

(Testing :: web-platform-tests, defect, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 17047 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/17047
Details from upstream follow.

George Roman <[e-mail]> wrote:

Switch to random OS port retrieval for webdriver server

While working on enabling wdspec tests in Servo, I noticed that although _used_ports is protected by a lock, when running the tests in parallel, each process had the same connection port. Here I provided a full description. Basically, _used_ports is not shared between the processes (each process has a different copy of it) so the changes one process makes to it are not reflected in the other processes. Thus, we get multiple processes running WebDriver on the same port. The easiest way to solve this is to switch to random OS port retrieval by binding to port 0.

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

PR 17047 applied with additional changes from upstream: 70a130f553c06d0146f90d2d5fbad2aac6685146, 9f751d5c82d293b94525f52d6d211916285316e0

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=dac38ffc7c75dceab54a96f692a2e2b565f1b117

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

The PR was not expected to affect any tests, but the try push wasn't a success. Check the try results for infrastructure issues

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/3d43d5925998
[wpt PR 17047] - Switch to random OS port retrieval for webdriver server, a=testonly

Comment 5

[Arthur Iakab [arthur_iakab]]

https://hg.mozilla.org/mozilla-central/rev/3d43d5925998