You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@kylin.apache.org by "nichunen (JIRA)" <ji...@apache.org> on 2016/09/19 00:38:20 UTC

[jira] [Updated] (KYLIN-2026) NPE occurs when build a cube without partition column.

     [ https://issues.apache.org/jira/browse/KYLIN-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

nichunen updated KYLIN-2026:
----------------------------
    Description: 
I created a model with no partition column specified, step "Extract Fact Table Distinct Columns" failed with MR log "org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.NullPointerException at org.apache.kylin.cube.model.CubeJoinedFlatTableDesc.getColumnIndex(CubeJoinedFlatTableDesc.java:145)".

I doubt the root cause is in org.apache.kylin.cube.CubeManager#getAllDictColumnsOnFact, a null value is added to the return list due to cubeDesc.getModel().getPartitionDesc().getPartitionDateColumnRef() gets null.

Attached is the patch to fix, only add a null check.

> NPE occurs when build a cube without partition column.
> ------------------------------------------------------
>
>                 Key: KYLIN-2026
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2026
>             Project: Kylin
>          Issue Type: Bug
>          Components: General
>    Affects Versions: v1.5.4
>            Reporter: nichunen
>            Assignee: nichunen
>              Labels: patch
>             Fix For: v1.5.4
>
>
> I created a model with no partition column specified, step "Extract Fact Table Distinct Columns" failed with MR log "org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.NullPointerException at org.apache.kylin.cube.model.CubeJoinedFlatTableDesc.getColumnIndex(CubeJoinedFlatTableDesc.java:145)".
> I doubt the root cause is in org.apache.kylin.cube.CubeManager#getAllDictColumnsOnFact, a null value is added to the return list due to cubeDesc.getModel().getPartitionDesc().getPartitionDateColumnRef() gets null.
> Attached is the patch to fix, only add a null check.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)