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From "Nathan Griffith (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-4064) Querying a sharded MongoDB database sometimes returns zero rows
Date Wed, 11 Nov 2015 00:26:11 GMT

     [ https://issues.apache.org/jira/browse/DRILL-4064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nathan Griffith updated DRILL-4064:
-----------------------------------
    Summary: Querying a sharded MongoDB database sometimes returns zero rows  (was: Querying
a sharded MongoDB database with multiple document types returns zero rows)

> Querying a sharded MongoDB database sometimes returns zero rows
> ---------------------------------------------------------------
>
>                 Key: DRILL-4064
>                 URL: https://issues.apache.org/jira/browse/DRILL-4064
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - MongoDB
>    Affects Versions: 1.3.0
>         Environment: Linux cluster
>            Reporter: Nathan Griffith
>              Labels: cluster, database, mongodb, sharding
>
> Querying a sharded MongoDB database with multiple types of documents (i.e. documents
with different sets of keys) returns zero rows.
> Querying works as intended if the heterogeneous database is either a.) unsharded, or
b.) culled to ensure homogeneity.
> In my scenario the database's shard key was not hashed, and was set to mongo's "_id"
key.



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