[ 
https://issues.apache.org/jira/browse/FLINK-24465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dawid Wysakowicz updated FLINK-24465:
-------------------------------------
    Description: 
The javadoc for {{setBufferTimeout}} and similarly the documentation for 
{{execution.buffer-timeout}} claims:

{code}
    /**
     * Sets the maximum time frequency (milliseconds) for the flushing of the 
output buffers. By
     * default the output buffers flush frequently to provide low latency and 
to aid smooth
     * developer experience. Setting the parameter can result in three logical 
modes:
     *
     * <ul>
     *   <li>A positive integer triggers flushing periodically by that integer
     *   <li>0 triggers flushing after every record thus minimizing latency
     *   <li>-1 triggers flushing only when the output buffer is full thus 
maximizing throughput
     * </ul>
     *
     * @param timeoutMillis The maximum time between two output flushes.
     */
{code}

which is not true.

The {{-1}} value translates to 100ms. See 
{{org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator#checkAndResetBufferTimeout}}

  was:
The javadoc for {{setBufferTimeout}} and similarly the documentation for 
{{execution.buffer-timeout}} claims:

{code}
    /**
     * Sets the maximum time frequency (milliseconds) for the flushing of the 
output buffers. By
     * default the output buffers flush frequently to provide low latency and 
to aid smooth
     * developer experience. Setting the parameter can result in three logical 
modes:
     *
     * <ul>
     *   <li>A positive integer triggers flushing periodically by that integer
     *   <li>0 triggers flushing after every record thus minimizing latency
     *   <li>-1 triggers flushing only when the output buffer is full thus 
maximizing throughput
     * </ul>
     *
     * @param timeoutMillis The maximum time between two output flushes.
     */
{code}

which is not true.

The {{-1}} value translates to 100ms.


> Wrong javadoc and documentation for buffer timeout
> --------------------------------------------------
>
>                 Key: FLINK-24465
>                 URL: https://issues.apache.org/jira/browse/FLINK-24465
>             Project: Flink
>          Issue Type: Bug
>          Components: Documentation, Runtime / Configuration, Runtime / Network
>    Affects Versions: 1.14.0, 1.13.2
>            Reporter: Dawid Wysakowicz
>            Priority: Major
>             Fix For: 1.13.3, 1.15.0, 1.14.1
>
>
> The javadoc for {{setBufferTimeout}} and similarly the documentation for 
> {{execution.buffer-timeout}} claims:
> {code}
>     /**
>      * Sets the maximum time frequency (milliseconds) for the flushing of the 
> output buffers. By
>      * default the output buffers flush frequently to provide low latency and 
> to aid smooth
>      * developer experience. Setting the parameter can result in three 
> logical modes:
>      *
>      * <ul>
>      *   <li>A positive integer triggers flushing periodically by that integer
>      *   <li>0 triggers flushing after every record thus minimizing latency
>      *   <li>-1 triggers flushing only when the output buffer is full thus 
> maximizing throughput
>      * </ul>
>      *
>      * @param timeoutMillis The maximum time between two output flushes.
>      */
> {code}
> which is not true.
> The {{-1}} value translates to 100ms. See 
> {{org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator#checkAndResetBufferTimeout}}



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