QA: Switch rolling upgrade to 3 nodes (6.x backport) #30733
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Switches the rolling upgrade tests from upgrading two nodes to upgrading three nodes which is much more realistic and much better able to find unexpected bugs. It upgrades the nodes one at a time and runs tests between each upgrade. As such this now has four test runs: 1. Old 2. One third upgraded 3. Two thirds upgraded 4. Upgraded It sets system properties so the tests can figure out which stage they are in. It reuses the same yml tests for the "one third" and "two thirds" cases because they are *almost* the same case. This rewrites the yml-based indexing tests to be Java based because the yml-based tests can't handle different expected values for the counts. And the indexing tests need that when they are run twice. Closes elastic#25336
nik9000
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Pinging @elastic/es-core-infra |
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I wouldn't normally open a PR for a fairly simple backport like this one but @ywelsch needs this to test some things. |
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I'm going to close this without any version labels so we can track the merge in the usual way in #30728. I'll still merge this code to 6.x but github might not thing it is merged. |
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Switches the rolling upgrade tests from upgrading two nodes to upgrading
three nodes which is much more realistic and much better able to find
unexpected bugs. It upgrades the nodes one at a time and runs tests
between each upgrade. As such this now has four test runs:
It sets system properties so the tests can figure out which stage they
are in. It reuses the same yml tests for the "one third" and "two
thirds" cases because they are almost the same case.
This rewrites the yml-based indexing tests to be Java based because the
yml-based tests can't handle different expected values for the counts.
And the indexing tests need that when they are run twice.
Closes #25336