Nik Everett a5d90e919f QA: Add xpack tests to rolling upgrade (#30795) ... A rolling upgrade from oss Elasticsearch to the default distribution of Elasticsearch is significantly different than a full cluster restart to install a plugin and is again different from starting a new cluster with xpack installed. So this adds some basic tests to make sure that the rolling upgrade that enables xpack works at all. This also removes some unused imports from the tests that I modified in PR #30728. I didn't mean to leave them.		2018-05-22 17:17:34 -04:00
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java/org/elasticsearch/upgrades	QA: Add xpack tests to rolling upgrade (#30795)	2018-05-22 17:17:34 -04:00
resources/rest-api-spec/test	QA: Switch rolling upgrade to 3 nodes (#30728)	2018-05-21 13:15:13 -04:00