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e53a43800e
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
38 lines
1.1 KiB
JSON
38 lines
1.1 KiB
JSON
{
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"cluster.reroute": {
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"documentation": "http://www.elasticsearch.org/guide/en/elasticsearch/reference/master/cluster-reroute.html",
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"methods": ["POST"],
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"url": {
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"path": "/_cluster/reroute",
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"paths": ["/_cluster/reroute"],
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"parts": {
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},
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"params": {
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"dry_run": {
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"type" : "boolean",
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"description" : "Simulate the operation only and return the resulting state"
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},
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"explain": {
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"type" : "boolean",
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"description" : "Return an explanation of why the commands can or cannot be executed"
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},
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"filter_metadata": {
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"type" : "boolean",
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"description" : "Don't return cluster state metadata (default: false)"
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},
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"master_timeout": {
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"type" : "time",
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"description" : "Explicit operation timeout for connection to master node"
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},
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"timeout": {
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"type" : "time",
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"description" : "Explicit operation timeout"
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}
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}
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},
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"body": {
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"description" : "The definition of `commands` to perform (`move`, `cancel`, `allocate`)"
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}
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}
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}
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