ifndef-SleePy commented on a change in pull request #10332:
[FLINK-13905][checkpointing] Separate checkpoint triggering into several
asynchronous stages
URL: https://github.com/apache/flink/pull/10332#discussion_r367774356
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointCoordinator.java
##########
@@ -485,76 +481,151 @@ public boolean isShutdown() {
CheckpointProperties props,
@Nullable String externalSavepointLocation,
boolean isPeriodic,
- boolean advanceToEndOfTime) throws CheckpointException {
+ boolean advanceToEndOfTime) {
if (advanceToEndOfTime && !(props.isSynchronous() &&
props.isSavepoint())) {
- throw new IllegalArgumentException("Only synchronous
savepoints are allowed to advance the watermark to MAX.");
+ return FutureUtils.completedExceptionally(new
IllegalArgumentException(
+ "Only synchronous savepoints are allowed to
advance the watermark to MAX."));
}
- // make some eager pre-checks
+ final CompletableFuture<CompletedCheckpoint>
onCompletionPromise =
+ new CompletableFuture<>();
synchronized (lock) {
- preCheckBeforeTriggeringCheckpoint(isPeriodic,
props.forceCheckpoint());
- }
-
- // check if all tasks that we need to trigger are running.
- // if not, abort the checkpoint
- Execution[] executions = new Execution[tasksToTrigger.length];
- for (int i = 0; i < tasksToTrigger.length; i++) {
- Execution ee =
tasksToTrigger[i].getCurrentExecutionAttempt();
- if (ee == null) {
- LOG.info("Checkpoint triggering task {} of job
{} is not being executed at the moment. Aborting checkpoint.",
-
tasksToTrigger[i].getTaskNameWithSubtaskIndex(),
- job);
- throw new
CheckpointException(CheckpointFailureReason.NOT_ALL_REQUIRED_TASKS_RUNNING);
- } else if (ee.getState() == ExecutionState.RUNNING) {
- executions[i] = ee;
- } else {
- LOG.info("Checkpoint triggering task {} of job
{} is not in state {} but {} instead. Aborting checkpoint.",
-
tasksToTrigger[i].getTaskNameWithSubtaskIndex(),
- job,
- ExecutionState.RUNNING,
- ee.getState());
- throw new
CheckpointException(CheckpointFailureReason.NOT_ALL_REQUIRED_TASKS_RUNNING);
+ if (isTriggering || !triggerRequestQueue.isEmpty()) {
Review comment:
`triggerRequestQueue` might be accessed in main thread, through `shutdown`
and `stopCheckpointScheduler`.
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