Hi All,
I've been trying to graph data obtains from a "SHOW STATUS" mysql query.
When attempting to graph "Threads_connected" using Kibana is received the
following error...
Oops! ClassCastException[org.elasticsearch.index.fielddata.plain.PagedBytesIndexFieldData
cannot be cast to org.elasticsearch.index.fielddata.IndexNumericFieldData]
I checked my mappings and the "Value" field has been added to elasticsearch
as a string even though it only ever contains integer counts. I don;t
really want to re-dump my data and change mappings so I've managed to fix
the query using dynamic scripting like so...
curl -XGET 'http://hostname:9200/_all/_search?pretty' -d '{
"facets": {
"0": {
"date_histogram": {
"key_field": "@timestamp",
"value": "doc['Value'].Intvalue",
"interval": "5m"
},
"global": true,
"facet_filter": {
"fquery": {
"query": {
"filtered": {
"query": {
"query_string": {
"query": "source:mysql_status AND
Variable_name:Threads_connected"
}
},
"filter": {
"bool": {
"must": [
{
"range": {
"@timestamp": {
"from": 1411520355984,
"to": 1411563555984
}
}
}
]
}
}
}
}
}
}
}
},
"size": 0
I have simply changed..
"value": "Value",
to...
"value": "doc['Value'].Intvalue",
This query returns what I want but I am unable to get this into Kibana
without it throwing some kind of error. So my question would be... how do I
get my historgram to use data from the above query?
Rhys
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