Hello,
there is no way to manually trigger checkpoints or configure irregular
intervals.
You will have to modify the CheckpointCoordinator
<https://github.com/apache/flink/blob/master/flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointCoordinator.java>
and build Flink from source:
* startCheckpointScheduler() should only schedule a one-time execution
of the trigger
* ScheduledTrigger#run() should reschedule itself
o Something like:
+ triggerCheckpoint(System.currentTimeMillis(), true);
+ long msUntilNextCheckpoint = // insert logic here
+ timer.schedule(new ScheduledTrigger(),
msUntilNextCheckpoint, TimeUnit.MILLISECONDS)
On 11.04.2018 05:15, syed wrote:
I am new to the flink environment and looking to analyze the triggering of
checkpoints. I am looking to trigger non-periodic checkpoints such that
checkpoint intervals are not of equal length, but not sure how can I do this
in Flink.
My specific query is;
(1) How can I trigger non-periodic checkpoints in Flink? I am looking to
trigger first checkpoint say after 10 seconds, the next checkpoint at say 25
seconds, third at 45 seconds and so on. Can I define my own function which
triggers non-periodic checkpoints and generates no-uniform checkpoint
intervals?
Thanks.
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