[TS-4478] AsyncHttpFetch hangs forever after ProxyClientSession changes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.2.0, 7.0.0
• Component/s: Core, CPP API
• Labels: regression
• Assignee: Susan Hinrichs
• Reporter: David Calavera
• Created: 24/May/16 17:48
• Updated: 15/Jun/16 18:44
• Resolved: 06/Jun/16 22:08

Description

I'm porting what Mathias Biilmann Christensen reported in https://github.com/apache/trafficserver/pull/570 here:

This pull request also seems to break one of our plugins that does HTTP requests in a background worker thread via TSFetchUrl (used indirectly through the AsyncHttpFetch C++ API).

The HTTP request will hang at this check for the right thread and never progress:

https://github.com/apache/trafficserver/pull/570/files#diff-40fc32ab3504372e0eb74a54108d1b6fR2404

Removing these checks for the right thread leads to a segfault.

Issue Links

• is related to: TS-4547 NULL handler being scheduled
• links to: GitHub Pull Request #688