Many thanks Fabian for your prompt replies much appreciated Thanks Declan
On Wed, Oct 6, 2021 at 8:38 AM Fabian Paul <fabianp...@ververica.com> wrote: > Hi Declan, > > As far as I know the FileSink does not buffer records but writes the > records to temporary files which are bucketed later. For the Elasticsearch > sink > you are right it buffers the records before flushing them to > ElasticSearch but you can control the flushing behaviour based on a given > interval > or the buffer size (records, megabytes). > > Best, > Fabian