[ https://issues.apache.org/jira/browse/TS-2894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Leif Hedstrom updated TS-2894: ------------------------------ Assignee: Bryan Call > Spdy slow start.. > ----------------- > > Key: TS-2894 > URL: https://issues.apache.org/jira/browse/TS-2894 > Project: Traffic Server > Issue Type: Improvement > Components: SPDY > Reporter: Sudheer Vinukonda > Assignee: Bryan Call > Fix For: 5.1.0 > > Attachments: TS-2894.diff > > > When production testing with spdy/5.0.0, we ran into an issue in some of our > systems, where, the spdy hosts would flap constantly due to the flood of > requests. We further noticed that, where the 4.0.x version or 5.0.0 w/ spdy > turned off, would recover quickly following a restart, spdy enabled hosts > would continue to receive flood of requests and continue to flap. During this > time, traffic server is generally busy reading from the disk and can not > handle too many requests, and is made miserable by spdy's support of multiple > concurrent streams. > To handle such a sudden flood of requests, I'm implementing a simple slow > start mechanism with spdy. The idea is to increase the > max_concurrent_streams_in gradually based on a configured timer, rather than > use the configured value right away. The steps I chose to implement are 1, > 25, 50, 75 and 100% of the configured max_concurrent_streams_in. Note that, > currently, > max_concurrent_streams_in only affects new spdy sessions. Existing sessions > (if any) would continue to use their older values. > Not too sure, if everyone would be interested in this..but, thought of still > uploading my patch, incase, someone is interested. -- This message was sent by Atlassian JIRA (v6.2#6252)