>From the reference guide:
group.ngroups and group.facet require that all documents in each group
must be co-located on the same shard in order for accurate counts to
be returned. Document routing via composite keys can be a useful
solution in many situations.
It's not clear what you think the prolbem here is. You say:
bq: Ex: Below response contains 5 groups (Which is correct) but
ngroups is 11. But you have rows set to 5 so?
As far as your sorting issue, again an example showing what you think
is wrong would be very helpful.
Best,
Erick
On Wed, Jul 8, 2015 at 6:38 AM, Pankaj Sonawane
<pankaj4sonaw...@gmail.com> wrote:
> Hi,
>
> I am using sharding (3 shards) with Zookeeper.
>
> When I query a collection using "
> *group=true&group.field=NAME&group.ngroups=true*" parameters, "*ngroups*" in
> response is incorrect. However I am getting correct count in doclist array.
>
> Ex: Below response contains 5 groups (Which is correct) but ngroups is 11.
>
> {
> "responseHeader":{
> "status":0,
> "QTime":49,
> "params":{
> "group.ngroups":"true",
> "indent":"true",
> "start":"0",
> "q":"*:*",
> "group.field":"NAME",
> "group":"true",
> "wt":"json",
> "rows":"5"
> }
> },
> "grouped":{
> "NAME":{
> "matches":18,
> "ngroups":11,
> "groups":[
> {
> "groupValue":"A-SERIES",
> "doclist":{
> "numFound":5,
> "start":0,
> "maxScore":1,
> "docs":[
> {
> "NAME":"A-SERIES",
> "_version_":1505559209034383400
> }
> ]
> }
> },
> {
> "groupValue":"B-SERIES",
> "doclist":{
> "numFound":5,
> "start":0,
> "docs":[
> {
> "NAME":"B-SERIES",
> "_version_":1505559209034383400
> }
> ]
> }
> },
> {
> "groupValue":"C-SERIES",
> "doclist":{
> "numFound":1,
> "start":0,
> "docs":[
> {
> "NAME":"C-SERIES",
> "_version_":1505559209034383400
> }
> ]
> }
> },
> {
> "groupValue":"D-SERIES",
> "doclist":{
> "numFound":5,
> "start":0,
> "docs":[
> {
> "NAME":"D-SERIES",
> "_version_":1505559209034383400
> }
> ]
> }
> },
> {
> "groupValue":"E-SERIES",
> "doclist":{
> "numFound":3,
> "start":0,
> "maxScore":1,
> "docs":[
> {
> "NAME":"E-SERIES",
> "_version_":1505559209034383400
> }
> ]
> }
> }
> ]
> }
> }
> }
>
> I am facing same problem with Recip function to get latest record on some
> date field when using sharding. It returns back records in wrong order.
>
> Note: Same configuration works fine on single machine without sharding.
>
> Please Help me to find solution.
>
> Thanks.
