Sudheer Vinukonda created TS-2894:
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Summary: 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
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 enable to the configured
value right away. The steps I chose to implement are 1, 25, 50, 75 and 100% of
the configured throttling timer.
Not too sure, if everyone would be interested in this..but, thought of still
uploading my patch, incase, someone is interested.
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