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https://issues.apache.org/jira/browse/KYLIN-4625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17153453#comment-17153453
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wangrupeng commented on KYLIN-4625:
-----------------------------------
Now if you want to debug tomcat without hadoop environment, you can follow the
follow steps:
* edit the properties of
$KYLIN_SOURCE_DIR/examples/test_case_data/sandbox/kylin.properties to local
```log
kylin.metadata.url=$KYLIN_SOURCE_DIR/examples/test_case_data/parquet_test
kylin.env.zookeeper-is-local=true
kylin.env.hdfs-working-dir=file://$KYLIN_SOURCE_DIR/examples/test_case_data/parquet_test
kylin.engine.spark-conf.spark.master=local
kylin.engine.spark-conf.spark.eventLog.dir=/path/to/local/dir
kylin.env=LOCAL
```
* debug org.apache.kylin.rest.DebugTomcat with IDEA && add VM option
"-Dspark.local=true"
This is used for query engine
* start debug tomcat and we can use the models we already defined
!screenshot-1.png!
> Debug the code of Kylin on Parquet without hadoop environment
> -------------------------------------------------------------
>
> Key: KYLIN-4625
> URL: https://issues.apache.org/jira/browse/KYLIN-4625
> Project: Kylin
> Issue Type: Improvement
> Components: Spark Engine
> Reporter: wangrupeng
> Assignee: wangrupeng
> Priority: Major
> Attachments: image-2020-07-08-17-41-35-954.png,
> image-2020-07-08-17-42-09-603.png, screenshot-1.png
>
>
> Currently, Kylin on Parquet already supports debuging source code with local
> csv files, but it's a little bit complex. The steps are as follows:
> * edit the properties of
> $KYLIN_SOURCE_DIR/examples/test_case_data/sandbox/kylin.properties to local
> ```log
> kylin.metadata.url=$LOCAL_META_DIR
> kylin.env.zookeeper-is-local=true
> kylin.env.hdfs-working-dir=file:///path/to/local/dir
> kylin.engine.spark-conf.spark.master=local
> kylin.engine.spark-conf.spark.eventLog.dir=/path/to/local/dir
> kylin.env=UT
> ```
> * debug org.apache.kylin.rest.DebugTomcat with IDEA && add VM option
> "-Dspark.local=true"
> !image-2020-07-08-17-41-35-954.png!
> * Load csv data source by pressing button "Data Source->Load CSV File as
> Table" on "Model" page, and set the schema for your table. Then press
> "submit" to save.
> !image-2020-07-08-17-42-09-603.png!
> Most time we debug just want to build and query cube easy. But current way is
> complex to load csv tables and create model and cube. So, I want to add a csv
> source which using the model of kylin sample data directly when debug tomcat
> started.
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