[jira] [Commented] (IOTDB-1196) use this path ：paths.add(new Path("device_1.sensor_1")) for query and got java.lang.NullPointerException

["Haonan Hou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IOTDB-1196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17533585#comment-17533585 ] 

Haonan Hou commented on IOTDB-1196:
-----------------------------------

This issue may be fixed in 0.13, please check it.

>  use this path ：paths.add(new Path("device_1.sensor_1"))  for query  and got java.lang.NullPointerException
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: IOTDB-1196
>                 URL: https://issues.apache.org/jira/browse/IOTDB-1196
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: Core/TsFile
>            Reporter: 刘珍
>            Assignee: Haonan Hou
>            Priority: Minor
>
> master branch
> commit 6694c5d70ff78bd1b67768b147514ec57a168990
> Author: Yifu Zhou <ef...@gmail.com>
> Date: Wed Mar 10 10:56:04 2021 +0800
> Update the SeedUrl Format Exception Info when using cluster mode (#2786)
>  
> 《IOTDB用户手册- 0.12-snapshot-20210305.pdf》 P115  7.6.2.4 读取现有 TsFile 示例 
>  
> /**
>  * The class is to show how to read TsFile file named "test.tsfile". The TsFile file "test.tsfile"
>  * is generated from class TsFileWriteWithTSRecord or TsFileWriteWithTablet. Run
>  * TsFileWriteWithTSRecord or TsFileWriteWithTablet to generate the test.tsfile first
>  */
>  
> Run this class，got the exception：
> Exception in thread "main" java.lang.NullPointerException
>  at java.util.TreeMap.getEntry(TreeMap.java:347)
>  at java.util.TreeMap.containsKey(TreeMap.java:232)
>  at org.apache.iotdb.tsfile.read.controller.MetadataQuerierByFileImpl.loadChunkMetaDatas(MetadataQuerierByFileImpl.java:95)
>  at org.apache.iotdb.tsfile.read.query.executor.TsFileExecutor.execute(TsFileExecutor.java:70)
>  at org.apache.iotdb.tsfile.read.ReadOnlyTsFile.query(ReadOnlyTsFile.java:47)
>  at org.apache.iotdb.tsfile.TsFileRead_pdf.queryAndPrint(TsFileRead_pdf.java:40)
>  at org.apache.iotdb.tsfile.TsFileRead_pdf.main(TsFileRead_pdf.java:59)
>  
> Change 
> "paths.add(new Path("device_1.sensor_1"));"
> into 
> "paths.add(new Path("device_1", "sensor_1"));"
>  
> the result set is right.
>  
>  
>  
>  



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