On Fri, 30 Sep 2022 12:38:26 GMT, Daniel Jeliński <djelin...@openjdk.org> wrote:

>> Please review this patch that makes sure KeepAliveCache does not block all 
>> threads while closing sockets.
>> 
>> Changes:
>> - get operation no longer closes sockets; if there's no socket that is 
>> recent enough, get returns null and lets the cleaner thread close the sockets
>> - put operation closes sockets without holding the cache lock. Additionally, 
>> if the cache is full, it places the new connection in the cache and removes 
>> the oldest connection.
>> - the cleaner thread creates a list of connections to close, and then closes 
>> them after releasing the cache lock
>> - additionally, we set the socket timeout to 1 millisecond before calling 
>> socket.close
>> 
>> The new test fails with `Wait for second request timed out` without this 
>> patch, passes after the changes. Tiers 1-3 clean.
>
> Daniel Jeliński has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   add explicit null check for pollFirst result

Thanks for the reviews!

-------------

PR: https://git.openjdk.org/jdk/pull/10401

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