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Posted to server-dev@james.apache.org by "Sjoerd de Feijter (Jira)" <se...@james.apache.org> on 2021/02/25 03:06:00 UTC
[jira] [Created] (JAMES-3505) RemoteDelivery mailet single threaded
for mail delivery
Sjoerd de Feijter created JAMES-3505:
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Summary: RemoteDelivery mailet single threaded for mail delivery
Key: JAMES-3505
URL: https://issues.apache.org/jira/browse/JAMES-3505
Project: James Server
Issue Type: Bug
Components: Remote Delivery
Affects Versions: master, 3.5.0
Reporter: Sjoerd de Feijter
RemoteDelivery mailet appears to be delivering mail using a single thread. This affects throughput of email delivery significantly.
I'm not very familiar with Apache James but it looks like the cause of this is the processMail method in DeliveryRunnable. The method is blocking and is preventing multi-threaded behavior. Wrapping the contents of the method in a Mono.create speeds up delivery significantly.
However, I'm not sure if this will cause threading issues (maybe it's supposed to be single threaded). So any input appreciated.
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