ChunkMessageChannelItemWriter Reply Channel Issues [BATCH-2507] #1096
Description
Gary Russell opened BATCH-2507 and commented
The ChunkMessageChannelItemWriter won't work in a multi-threaded environment, even when using step scope - all requests are sharing the same reply channel.
The handler should be using a replyChannel header (one per step) instead of referencing a channel in the application context.
See similar code in the MessageChannelPartitionHandler which was fixed to use a unique queue for each new request.
Even there, I'm not sure there's ever a valid case for explicitly injecting a shared channel.
Affects: 3.0.7
Reference URL: http://stackoverflow.com/questions/37332048/spring-batch-how-to-configure-remote-chunking-for-multiple-jobs-running-in-a-t
Issue Links:
- BATCH-2228 Remote-chunking implementation does not support parallel executions of the same job
("duplicates") - BATCH-2508 ChunkMessageChannelItemWriter Reply Channel Issues
("is duplicated by")
3 votes, 5 watchers