ElasticSearch sort exception - might be NEST related - elasticsearch

Question

We recently upgraded from ES 0.23 to 0.90 and now my queries, eg:
{
"sort": {
"companyname.sort": {
"order": "asc"
}
}
}
cause an exception:
{
error: SearchPhaseExecutionException[Failed to execute phase [query], all shards failed; shardFailures {[Y8U7j2f-QvS75-6SfxlGuA][boss][0]:
QueryPhaseExecutionException[[boss][0]:
query[ConstantScore(cache(_type:SalesCompany))],from[0],size[10],sort[<custom:"companyname.sort":
org.elasticsearch.index.fielddata.fieldcomparator.BytesRefFieldComparatorSource#292f8639>]:
Query Failed [Failed to execute main query]]; nested: NullPointerException; }{[Y8U7j2f-QvS75-6SfxlGuA][boss][1]: QueryPhaseExecutionException[[boss][1]:
query[ConstantScore(cache(_type:SalesCompany))],from[0],size[10],sort[<custom:"companyname.sort":
org.elasticsearch.index.fielddata.fieldcomparator.BytesRefFieldComparatorSource#292f8639>]: Query Failed [Failed to execute main query]]; nested: NullPointerException; }]
status: 500
}
If I run the same query on our staging environment with an index that was created with 0.23 - but has ES 0.90 installed - it works fine. The mapping is:
companyname: {
type: multi_field
fields: {
companyname: {
type: string
store: true
analyzer: simple
}
sort: {
type: string
index: not_analyzed
store: true
omit_norms: true
index_options: docs
analyzer: simple
include_in_all: false
}
}
}
I'm using the latest version of NEST from a .Net C# app to create the index and query it.
I havent yet tried to recreate the index on the staging environment as I don't want to break that until I know how to fix it :)
Anyone got any ideas?
Thanks

Answer 1

I have recently switched to ES 0.90.7 and latest Nest. All is now well in the world.