4f8ddd97bf
[Rest] reroute API response didn't filter metadata
...
By default the reroute API should return the new cluster state, excluding the metadata. It was however it was wrongly using an old parameter (filter_metadata) and thus failed to do so. This commits restores but wiring it to the correct `metric` parameter. We also add an enum representing the possible metrics, to avoid similar future mistakes.
Closes #7520
Closes #7523
2014-09-10 14:48:06 +02:00
e53a43800e
Add `explain` flag support to the reroute API
...
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
2014-02-27 09:48:51 -07:00
Boaz Leskes
javanna
Lee Hinman
Zachary Tong
Honza Kral