[RFR] 8184328: JDK8u131 socketRead0 hang at SSL read (original) (raw)
Rob McKenna rob.mckenna at oracle.com
Mon Sep 11 22:29:54 UTC 2017
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Hi folks,
In high latency environments a client SSLSocket with autoClose set to false can hang indefinitely if it does not correctly recieve a close_notify from the server.
In order to rectify this situation I would like to suggest that we implement an integer JDK property (jdk.tls.closeRetries) which instructs waitForClose to attempt the close no more times than the value of the property. I would also suggest that 5 is a reasonable default.
Note: each attempt times out based on the value of Socket.setSoTimeout(int timeout).
Also, the behaviour here is similar to that of waitForClose() when autoClose is set to true, less the retries.
http://cr.openjdk.java.net/~robm/8184328/webrev.01/
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