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https://issues.apache.org/jira/browse/FLINK-10840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
vinoyang closed FLINK-10840.
----------------------------
Resolution: Not A Bug
> BucketingSink incorrectly clears the pendingFiles List
> ------------------------------------------------------
>
> Key: FLINK-10840
> URL: https://issues.apache.org/jira/browse/FLINK-10840
> Project: Flink
> Issue Type: Bug
> Components: Streaming Connectors
> Reporter: vinoyang
> Assignee: vinoyang
> Priority: Major
>
> BucketingSink#snapshotState : (see the *comment* in this method)
> {code:java}
> public void snapshotState(FunctionSnapshotContext context) throws Exception {
> Preconditions.checkNotNull(restoredBucketStates, "The operator has not
> been properly initialized.");
> restoredBucketStates.clear();
> synchronized (state.bucketStates) {
> int subtaskIdx = getRuntimeContext().getIndexOfThisSubtask();
> for (Map.Entry<String, BucketState<T>> bucketStateEntry :
> state.bucketStates.entrySet()) {
> BucketState<T> bucketState = bucketStateEntry.getValue();
> if (bucketState.isWriterOpen) {
> bucketState.currentFileValidLength = bucketState.writer.flush();
> }
> synchronized (bucketState.pendingFilesPerCheckpoint) {
>
> bucketState.pendingFilesPerCheckpoint.put(context.getCheckpointId(),
> bucketState.pendingFiles);
> }
> //This operation will make this collection prematurely emptied
> bucketState.pendingFiles = new ArrayList<>();
> }
> restoredBucketStates.add(state);
> if (LOG.isDebugEnabled()) {
> LOG.debug("{} idx {} checkpointed {}.", getClass().getSimpleName(),
> subtaskIdx, state);
> }
> }
> }
> {code}
>
>
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