Hi,
Found another thing. With 2.2.1 we were seeing a LOT of requests not being handled quickly. .. stuck in core messages. I say were because we've rolled back to 2.2.0 for now as we don't have time to debug this for a while. If someone else doesn't step in then can look into this in a couple of weeks (some serious developer debug left on slowing it?)
I finally also found those on a 2.2.1 which runs a simple, proxy-mostly config. I would rather have expected such things on our complex internal instance, but well. Looks like: Mon Sep 30 09:05:08 2013 : Error: WARNING: Unresponsive child for request 64232, in component <core> module <thread> Mon Sep 30 09:05:08 2013 : Error: WARNING: Unresponsive child for request 64233, in component <core> module <thread> Mon Sep 30 09:05:08 2013 : Error: WARNING: Unresponsive child for request 64234, in component <core> module <thread> Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64232 in component <core> module <thread>. Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64233 in component <core> module <thread>. Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64234 in component <core> module <thread>. Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64219 in component <core> module <thread>. Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64220 in component <core> module <thread>. Mon Sep 30 09:05:09 2013 : Info: WARNING: Child is hung for request 64221 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64082 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64083 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64084 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 119 due to unfinished request 64294 Mon Sep 30 09:05:10 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 120 due to unfinished request 64295 Mon Sep 30 09:05:10 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 121 due to unfinished request 64296 Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64232 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64233 in component <core> module <thread>. Mon Sep 30 09:05:10 2013 : Info: WARNING: Child is hung for request 64234 in component <core> module <thread>. Mon Sep 30 09:05:12 2013 : Info: WARNING: Child is hung for request 64232 in component <core> module <thread>. Mon Sep 30 09:05:12 2013 : Info: WARNING: Child is hung for request 64233 in component <core> module <thread>. Mon Sep 30 09:05:12 2013 : Info: WARNING: Child is hung for request 64234 in component <core> module <thread>. Mon Sep 30 09:05:12 2013 : Error: Discarding duplicate request from client eduroam-tld2-v4 port 58917 - ID: 104 due to unfinished request 64300 Mon Sep 30 09:05:12 2013 : Error: Discarding duplicate request from client eduroam-tld2-v4 port 58917 - ID: 105 due to unfinished request 64301 Mon Sep 30 09:05:12 2013 : Error: Discarding duplicate request from client eduroam-tld2-v4 port 58917 - ID: 106 due to unfinished request 64302 Mon Sep 30 09:05:13 2013 : Info: WARNING: Child is hung for request 64219 in component <core> module <thread>. Mon Sep 30 09:05:13 2013 : Info: WARNING: Child is hung for request 64220 in component <core> module <thread>. Mon Sep 30 09:05:13 2013 : Info: WARNING: Child is hung for request 64221 in component <core> module <thread>. Mon Sep 30 09:05:13 2013 : Info: WARNING: Child is hung for request 64122 in component <core> module <thread>. Mon Sep 30 09:05:13 2013 : Error: Discarding duplicate request from client eduroam-tld2-v4 port 58917 - ID: 107 due to unfinished request 64337 Mon Sep 30 09:05:14 2013 : Info: WARNING: Child is hung for request 63987 in component <core> module <thread>. Mon Sep 30 09:05:14 2013 : Info: WARNING: Child is hung for request 63988 in component <core> module <thread>. Mon Sep 30 09:05:14 2013 : Info: WARNING: Child is hung for request 63989 in component <core> module <thread>. Mon Sep 30 09:05:15 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 119 due to unfinished request 64294 Mon Sep 30 09:05:15 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 120 due to unfinished request 64295 Mon Sep 30 09:05:15 2013 : Error: Discarding duplicate request from client eduroam-tld1-v4 port 42885 - ID: 121 due to unfinished request 64296 Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64232 in component <core> module <thread>. Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64233 in component <core> module <thread>. Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64234 in component <core> module <thread>. Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64127 in component <core> module <thread>. Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64128 in component <core> module <thread>. Mon Sep 30 09:05:16 2013 : Info: WARNING: Child is hung for request 64129 in component <core> module <thread>. Mon Sep 30 09:05:17 2013 : Info: WARNING: Child is hung for request 64002 in component <core> module <thread>. Mon Sep 30 09:05:17 2013 : Info: WARNING: Child is hung for request 64003 in component <core> module <thread>. Mon Sep 30 09:05:17 2013 : Info: WARNING: Child is hung for request 64004 in component <core> module <thread>. Just wondering... did the fixes for 2.2.2 include a fix for such "Child is hung" requests? I reverted the server to 2.2.0 and do not see these issues any more. 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