Thanks for the feedback Jared! (and thanks to Chang as well!)
On Fri, Jul 1, 2011 at 8:06 AM, Jared Cantwell <[email protected]>wrote: > As a note, I believe we just used this patch to solve a major issue ... > > Thanks Chang! > ~Jared > > On Tue, Apr 19, 2011 at 10:59 AM, Ted Dunning <[email protected]> > wrote: > > > Where is this set? > > > > Why does this cause this problem? > > > > 2011/4/19 Chang Song <[email protected]> > > > > > > > > Problem solved. > > > it was socket linger option set to 2 sec timeout. > > > > > > We have verified that the original problem goes away when we turn off > > > linger option. > > > No longer a mystery ;) > > > > > > > > > https://issues.apache.org/jira/browse/ZOOKEEPER-1049 > > > > > > > > > Chang > > > > > > > > > 2011. 4. 19., 오전 3:16, Mahadev Konar 작성: > > > > > > > Camille, Ted, > > > > Can we continue the discussion on > > > > https://issues.apache.org/jira/browse/ZOOKEEPER-1049? > > > > > > > > We should track all the suggestions/issues on the jira. > > > > > > > > thanks > > > > mahadev > > > > > > > > On Mon, Apr 18, 2011 at 9:03 AM, Ted Dunning <[email protected]> > > > wrote: > > > >> Interesting. It does seem to suggestion the session expiration is > > > >> expensive. > > > >> > > > >> There is a concurrent table in guava that provides very good > > > multi-threaded > > > >> performance. I think that is achieved by using a number of locks > and > > > then > > > >> distributing threads across the locks according to the hash slot > being > > > used. > > > >> But I would have expected any in memory operation to complete very > > > quickly. > > > >> > > > >> Is it possible that the locks on the session table are held longer > > than > > > they > > > >> should be? > > > >> > > > >> 2011/4/18 Fournier, Camille F. [Tech] <[email protected]> > > > >> > > > >>> Is it possible this is related to this report back in February? > > > >>> > > > >>> > > > > > > http://mail-archives.apache.org/mod_mbox/zookeeper-user/201102.mbox/%3c6642fc1caf133548aa8fdf497c547f0a23c0c52...@nywexmbx2126.msad.ms.com%3E > > > >>> > > > >>> I theorized that the issue might be due to synchronization on the > > > session > > > >>> table, but never got enough information to finish the > investigation. > > > >>> > > > >> > > > > > > > > > > > > > > > > -- > > > > thanks > > > > mahadev > > > > @mahadevkonar > > > > > > > > >
