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Posted to issues@kylin.apache.org by "nichunen (Jira)" <ji...@apache.org> on 2019/12/05 08:44:00 UTC
[jira] [Updated] (KYLIN-4191) NPE in StreamingTupleConverter when
querying count on a dimension field
[ https://issues.apache.org/jira/browse/KYLIN-4191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
nichunen updated KYLIN-4191:
----------------------------
Fix Version/s: (was: v3.0.0)
Future
> NPE in StreamingTupleConverter when querying count on a dimension field
> -----------------------------------------------------------------------
>
> Key: KYLIN-4191
> URL: https://issues.apache.org/jira/browse/KYLIN-4191
> Project: Kylin
> Issue Type: Bug
> Components: Real-time Streaming
> Affects Versions: v3.0.0-alpha
> Reporter: Andras Istvan Nagy
> Assignee: Xiaoxiang Yu
> Priority: Major
> Fix For: Future
>
> Attachments: NPE.txt
>
>
> I am using the real-time olap feature with a lambda datasource definition. When executing a query that has a count(dim_field) in the select clause, where "dim_field" is one of the dimension fields, I get a NPE from org.apache.kylin.stream.core.query.StreamingTupleConverter.
> (According to a colleague, a similar query used to work for some time in our environment, and then stopped working, but I can't verify this statement. Restarting the Kylin processes or disabling/enabling the cube does not "fix" the issue.)
> The relevant part of stacktrace seems to be:
> {{Caused by: java.lang.NullPointerException at org.apache.kylin.stream.core.query.StreamingTupleConverter.<init>(StreamingTupleConverter.java:86)}}
> Please see attached full stacktrace.
>
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