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https://issues.apache.org/jira/browse/FLINK-18479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150693#comment-17150693
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Jun Zhang commented on FLINK-18479:
-----------------------------------
Hi,[~lzljs3620320] ,In this problem, the result of my test is that there is no
problem with the watermark, but there is a problem with the toMills method,
which cannot be controlled by the user.
The steps of my test are:
1. The system tzone is UTC+08:00,
2. the tzone of the original data is UTC+08:00
3. The tzone of the watermark is UTC+08:00
4.
{code:java}
LocalDateTime partTime = extractor.extract(
partitionKeys, extractPartitionValues(new Path(partition)));{code}
This code gets a local time, but the toMills method treats this partTime as UTC
time,
The result of the toMills method is 16 hours more than UTC time and 8 hours
more than watermark, which makes it impossible to trigger the submission.
> can not commit partition when set partition time
> ------------------------------------------------
>
> Key: FLINK-18479
> URL: https://issues.apache.org/jira/browse/FLINK-18479
> Project: Flink
> Issue Type: Bug
> Components: FileSystems
> Affects Versions: 1.11.0
> Reporter: Jun Zhang
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.1
>
>
> when we write streaming data to filesystem, and select the 'partition time' ,
> we can not commit the partition when write finished.
>
> {code:java}
> LocalDateTime partTime = extractor.extract(
> partitionKeys, extractPartitionValues(new Path(partition)));
> if (watermark > toMills(partTime) + commitDelay) {
> needCommit.add(partition);
> iter.remove();
> }
> {code}
> when we set a not UTC zone, and submit the partition, the method 'toMills'
> will get the UTC mills ，for example ，in UTC/GMT+08:00 ，the watermark will
> less than the toMills , so we can not commit the partition forever.
> if we use a local time , not utc , it will be ok in UTC zone and other zone.
>
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