[jira] [Assigned] (FLINK-28715) Throw better exception when file not found in reading

["Jingsong Lee (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-28715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jingsong Lee reassigned FLINK-28715:
------------------------------------

    Assignee: Jingsong Lee

> Throw better exception when file not found in reading
> -----------------------------------------------------
>
>                 Key: FLINK-28715
>                 URL: https://issues.apache.org/jira/browse/FLINK-28715
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table Store
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: table-store-0.2.0
>
>
> When reading a file, if it is found that the file does not exist, it directly throws a file not found exception, which is often difficult for users to understand.
> We can make it more clear in the exception message, e.g.
> The file cannot be found, this may be because the read is too slow and the previous snapshot expired, you can configure a larger snapshot.time-retained or speed up your read.
> Caused by: java.io.FileNotFoundException: File does not exist: 
> at org.apache.flink.table.store.file.utils.FileUtils.getFileSize(FileUtils.java:94) ~[flink-table-store-dist-0.2.jar:0.2-SNAPSHOT]
> at org.apache.flink.table.store.file.data.DataFileReader$DataFileRecordReader.<init>(DataFileReader.java:86) ~[flink-table-store-dist-0.2.jar:0.2-SNAPSHOT]



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