[Transform] prevent assignment to nodes older than 7.4 #48044
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Pinging @elastic/ml-core (:ml/Transform) |
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run elasticsearch-ci/2 |
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run elasticsearch-ci/bwc |
benwtrent
reviewed
Oct 15, 2019
| node.isDataNode() && | ||
| // see gh#48019 older nodes might not be able to read documents | ||
| node.getVersion().onOrAfter(Version.V_7_4_0) && | ||
| node.getVersion().onOrAfter(params.getVersion()) |
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I think we should not allow assignment at all in a mixed cluster where a <= 7.3 node is present. If the task is running and somebody makes a stats call, that stats call could be made against a 7.3 node which queries the wrong index and incorrectly says that the transform does not exist.
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superseeded by #48055 |
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do not allow assignment of transforms to nodes older than 7.4 (in mixed clusters).
fixes #48019