Slow HTTPS Upload provokes High CPU Load ---------------------------------------- Key: WFLY-4693 URL: https://issues.jboss.org/browse/WFLY-4693 Project: WildFly Issue Type: Bug Components: Web (Undertow) Affects Versions: 9.0.0.CR1 Reporter: Serge Mürset Assignee: Stuart Douglas Labels: undertow, web This issue is a reopen of https://issues.jboss.org/browse/UNDERTOW-345. This Issue is not fixed with Wildfly 9.0 CR1 (contrary to what was indicated in above mentioned ticket). Issue is fixed when XNIO trunk (https://github.com/xnio/xnio) is built and replaces XNIO 3.3.1 module. This is a major bug, as just one client with bad connectivity will cause a 100% CPU Load on Wildfly whilst the HTTPS upload is being read. It's also a real-world bug, as every note-worthy productive server will have at least one client with bad connectivity at any given time. Duration of the high CPU load directly correlates to the duration it takes the client to send all his POST data.