[ https://issues.apache.org/jira/browse/FLINK-12574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16844740#comment-16844740 ]
Aljoscha Krettek commented on FLINK-12574: ------------------------------------------ What do you mean by "restarting or resuming". If everything works correctly, the {{StreamingFileSink}} should checkpoint the counter that it uses for part files and new part files should have a higher part index than files that were already written. Of course, this only works when restoring from the latest checkpoint/savepoint, otherwise that part counter state will be outdated. > using sink StreamingFileSink files are overwritten when resuming application > causing data loss > ---------------------------------------------------------------------------------------------- > > Key: FLINK-12574 > URL: https://issues.apache.org/jira/browse/FLINK-12574 > Project: Flink > Issue Type: Bug > Components: Connectors / FileSystem > Affects Versions: 1.8.0 > Reporter: yitzchak lieberman > Priority: Critical > > when part files are saved to s3 bucket (with bucket assigner) with simple > names such as: > part-0-0 and part-1-2 > restarting or resuming application causes checkpoint id to start from 0 and > old files will be replaced by new part files. -- This message was sent by Atlassian JIRA (v7.6.3#76005)