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https://issues.apache.org/jira/browse/CAMEL-23281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Federico Mariani updated CAMEL-23281:
-------------------------------------
Fix Version/s: 4.18.2
4.19.0
> [camel-core] split/aggregator stuck in tx
> -----------------------------------------
>
> Key: CAMEL-23281
> URL: https://issues.apache.org/jira/browse/CAMEL-23281
> Project: Camel
> Issue Type: Bug
> Components: came-core
> Affects Versions: 4.18.1
> Reporter: Francesco Spampinato
> Assignee: Federico Mariani
> Priority: Minor
> Fix For: 4.18.2, 4.19.0
>
> Attachments: image-2026-04-02-00-55-36-946.png,
> threaddump-1775398792709.tdump
>
>
> Hi,
> i've a simple integration scenario.
> A csv file is polled from file system, the file is splitted and divided in
> chunks of certain size.
> Every chunk is persisted in bulk mode into a database, after that the file is
> moved into a processed folder. The entire file processing must be in
> transaction.
> {code:java}
> from(file("data").move("done"))
> .transacted()
> .split(body().tokenize(CSV_NEW_LINE)).streaming().stopOnException()
> .choice()
> .when(exchangeProperty(SPLIT_INDEX).isGreaterThan(0))
> .unmarshal().bindy(BindyType.Csv, CsvData.class)
> .aggregate(constant(true), AggregationStrategies.groupedBody())
> .eagerCheckCompletion()
> .executorService(new SynchronousExecutorService())
> .completionSize(BULK_SIZE)
> .completionPredicate(exchangeProperty(SPLIT_COMPLETE))
> .to(direct("saveData"));
> from(direct("saveData"))
> .log("${body}")
> .to(jpa("java.util.List").usePersist(true).flushOnSend(true)); {code}
> With version 4.18.0 everything works fine. With batch size of 5 and a csv of
> 11 lines, 3 batch created and persisted to db in a single database tx.
> With version 4.18.1, after the creation of first chunk the aggregator remains
> stuck and no progression is made
> !image-2026-04-02-00-55-36-946.png!
> The csv is not moved into processed folder and i've to kill the application.
> I've attached a threadump.
> I've created also a small repo to reproduce the issue.
> [spampibridge/split-aggregate|https://github.com/spampibridge/split-aggregate]
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