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
