The JDBCOutputFormat writes records in batches, that's what he is
referring to.
On 26.09.2016 11:48, Stephan Ewen wrote:
Hi!
I am not sure I understand what you want to do, but here are some comments:
- There is no "batching" in Flink's streaming API, not sure what you are
referring to in with the "last batch"
- JDBC connections are not closed between windows, they remain open as
long as the operator is open.
Thanks,
Stephan
On Mon, Sep 26, 2016 at 9:29 AM, Swapnil Chougule <the.swapni...@gmail.com>
wrote:
Hi Team,
Can we handle one case in connector JDBCOutputFormat to update last batch
(might be batch count is less than batch interval) without closing jdbc
connection?
During use case of my streaming project, I am updating jdbc sink (mysql db)
after every window.
Case : Say I have 450 queries to be updated in mysql with batch interval
100.
400 queries are executed in 4 batches (4 x 100).
Last 50 queries go into pending state in batch to be executed & wait for
next 50 queries from next window.
If window is of size 5 minutes, then it will take next 4-5 minutes to
reflect last 50 queries in mysql.
Can we have functionality in JDBCOuputFormat to flush last batch to jdbc
sink persisting same db connection.?
Thanks,
Swapnil
