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[Core] Add test case where there is dead node for /nodes?view=summary endpoint #47727

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merged 1 commit into from
Sep 18, 2024

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@jjyao jjyao commented Sep 18, 2024

Why are these changes needed?

Add test for #47701

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  • I've signed off every commit(by using the -s flag, i.e., git commit -s) in this PR.
  • I've run scripts/format.sh to lint the changes in this PR.
  • I've included any doc changes needed for https://docs.ray.io/en/master/.
    • I've added any new APIs to the API Reference. For example, if I added a
      method in Tune, I've added it in doc/source/tune/api/ under the
      corresponding .rst file.
  • I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
  • Testing Strategy
    • Unit tests
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    • This PR is not tested :(

Signed-off-by: Jiajun Yao <jeromeyjj@gmail.com>
@jjyao jjyao added the go add ONLY when ready to merge, run all tests label Sep 18, 2024
@@ -191,40 +208,44 @@ def test_multi_node_churn(
assert wait_until_server_available(cluster.webui_url) is True
webui_url = format_web_url(cluster.webui_url)

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test_multi_node_churn is the test that's supposed to catch the bug but it turned out it's broken and always passes:

cluster.add_node() cannot run in non-main thread and it will throw exception so the cluster_chaos_monkey thread will exit immediately without adding or removing any nodes. This PR swaps the code of main thread and the other thread.

@jjyao jjyao merged commit eaee1cc into ray-project:master Sep 18, 2024
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@jjyao jjyao deleted the jjyao/tesssst branch September 18, 2024 20:58
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