Has anyone had an upgrade to their ES cluster inadvertently delete all indices? We have several clusters, and a rolling update worked on all of them, except 1 cluster. The nodes were all 1.5.2, and on that cluster we did one thing differently; instead of terminating a node (one at a time) and bringi…

Upgrade from 1.5.2 to 1.6.0 deleted all indices

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Upgrade from 1.5.2 to 1.6.0 deleted all indices

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