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Posted to issues@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2021/03/16 12:17:00 UTC

[jira] [Updated] (FLINK-21820) JDBC connector shouldn't read all rows in per statement by default

     [ https://issues.apache.org/jira/browse/FLINK-21820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu updated FLINK-21820:
----------------------------
    Component/s: Table SQL / Ecosystem

> JDBC connector shouldn't read all rows in per statement by default
> ------------------------------------------------------------------
>
>                 Key: FLINK-21820
>                 URL: https://issues.apache.org/jira/browse/FLINK-21820
>             Project: Flink
>          Issue Type: Improvement
>          Components: Connectors / JDBC, Table SQL / Ecosystem
>            Reporter: Leonard Xu
>            Priority: Major
>
> The default value for JDBC option 'scan.fetch-size' is 0 which means read all rows in statement, this may lead to OOM or IO timeout.
> We'd better set a reasonable value as default value.
>  
>  



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