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Posted to issues@drill.apache.org by "Duarte Silva (JIRA)" <ji...@apache.org> on 2018/01/25 12:40:00 UTC
[jira] [Updated] (DRILL-6107) NullPointerException while querying
MongoDB collection
[ https://issues.apache.org/jira/browse/DRILL-6107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Duarte Silva updated DRILL-6107:
--------------------------------
Environment:
Drill specific
{noformat}
export DRILL_HEAP=${DRILL_HEAP:-"1G"}
export DRILL_MAX_DIRECT_MEMORY=${DRILL_MAX_DIRECT_MEMORY:-"2G"}
{noformat}
Other
{noformat}
Memory: 8 GiB
Processor: 2 VCPU (Intel i7)
Disk: 19 GiB (13 GiB free)
OS: Ubuntu 16.06
Java: OpenJDK 1.8.0_151
{noformat}
was:
Drill specific
{noformat}
export DRILL_HEAP=${DRILL_HEAP:-"1G"}
export DRILL_MAX_DIRECT_MEMORY=${DRILL_MAX_DIRECT_MEMORY:-"2G"}
{noformat}
Other
{noformat}
Memory: 8 GiB
Processor: 2 VCPU (Intel i7)
Disk: 19 GiB (13 GiB free)
OS: Ubuntu 16.06
Java: OpenJDK 1.8.0_151
{noformat}
> NullPointerException while querying MongoDB collection
> ------------------------------------------------------
>
> Key: DRILL-6107
> URL: https://issues.apache.org/jira/browse/DRILL-6107
> Project: Apache Drill
> Issue Type: Bug
> Components: Server
> Affects Versions: 1.11.0, 1.12.0
> Environment: Drill specific
> {noformat}
> export DRILL_HEAP=${DRILL_HEAP:-"1G"}
> export DRILL_MAX_DIRECT_MEMORY=${DRILL_MAX_DIRECT_MEMORY:-"2G"}
> {noformat}
> Other
> {noformat}
> Memory: 8 GiB
> Processor: 2 VCPU (Intel i7)
> Disk: 19 GiB (13 GiB free)
> OS: Ubuntu 16.06
> Java: OpenJDK 1.8.0_151
> {noformat}
> Reporter: Duarte Silva
> Priority: Major
> Attachments: collection.bson.log, drillbit.log
>
>
> I have installed Drill and configured it to connect to a MongoDB instance. That instance as a collection with a single document. When I query that collection using:
> {code:sql}
> select ports from mongo.ivre.hosts;{code}
> It fails with a NullPointerException. I'm able to query that collection as long as I don't select the "ports" property. Looking at the exception stack trace and respective Drill code it is clear that the "map" variable isn't supposed to be "null".
> {code:java}
> public MapOrListWriter list(final String name) {
> assert map != null;
> return new MapOrListWriterImpl(map.list(name));
> }
> {code}
> I couldn't figure out why it wasn't being initialized. I have attached the log and the collection BSON file. Thanks in advance.
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