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By specifying the `explain` flag, an explanation for the reason a command can or cannot be executed is returned. No allocation commands are actually performed. Returns a response similar to: { "state": {...cluster state...}, "acknowledged": true, "explanations" : [ { "command" : "cancel", "parameters" : { "index" : "decide", "shard" : 0, "node" : "IvpoKRdtRiGrQ_WKtt4_4w", "allow_primary" : false }, "decisions" : [ { "decider" : "cancel_allocation_command", "decision" : "YES", "explanation" : "..." } ] }, { "command" : "move", "parameters" : { "index" : "decide", "shard" : 0, "from_node" : "IvpoKRdtRiGrQ_WKtt4_4w", "to_node" : "IvpoKRdtRiGrQ_WKtt4_4w" }, "decisions" : [ { "decider" : "same_shard", "decision" : "NO", "explanation" : "shard cannot be allocated on same node [IvpoKRdtRiGrQ_WKtt4_4w] it already exists on" }, etc ] }] } also removes AllocationExplanation from cluster state Closes #2483 Closes #5169 |
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10_basic.yaml | ||
20_filtering.yaml |