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BulkProcessor's close ignores in-flight bulkRequests #6314

btiernay opened this Issue May 26, 2014 · 3 comments


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btiernay commented May 26, 2014

I have observed on a number of occasions that when I have large batch sizes / concurrent requests that I don't always get the same number of documents out of ES that I put in. Looking at:

     * Closes the processor. If flushing by time is enabled, then its shutdown. Any remaining bulk actions are flushed.
    public synchronized void close() {
        if (closed) {
        closed = true;
        if (this.scheduledFuture != null) {
        if (bulkRequest.numberOfActions() > 0) {

What happens if there are concurrent requests in-flight before the close call is made? Shouldn't this method block on those finishing? Or is the requirement / expectation that the client call close
on TransportClient which will block on the in-flight requests for up to 10 seconds?

As far as I can tell, there is no reliable way to know it is safe to shutdown the JVM.

@btiernay btiernay changed the title BulkProcessor silently drops last batch BulkProcessor's close ignores in-flight bulkRequests May 26, 2014


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btiernay commented May 27, 2014

This may be related but seems to concern error checking: #4301


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btiernay commented May 27, 2014

This appears to be a symptom of the missing functionality described in #4158. Is there a client side workaround given #5038?


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javanna commented Jun 13, 2014

Hi @btiernay, #5038 is going to be fixed soon (see #6495 ), also I think it would be good to add a blocking variant of the close method, that tries and wait for all the in-flight bulk requests to be completed #4180 is just a merge away and achieves exactly this ;)

Does this address your concerns?

@javanna javanna self-assigned this Jun 13, 2014

@s1monw s1monw added bug labels Jul 17, 2014

@s1monw s1monw assigned s1monw and unassigned javanna Jul 17, 2014

s1monw added a commit that referenced this issue Jul 17, 2014

[Bulk] Add blocking close method to BulkProcessor
Blocks until all bulk requests have completed.

Closes #4158
Closes #6314

@s1monw s1monw closed this in 42b71a0 Jul 17, 2014

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