16:00:28 <moizer> #startmeeting clustering_hackers
16:00:28 <odl_meetbot> Meeting started Tue Feb 17 16:00:28 2015 UTC.  The chair is moizer. Information about MeetBot at http://ci.openstack.org/meetbot.html.
16:00:28 <odl_meetbot> Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.
16:00:28 <odl_meetbot> The meeting name has been set to 'clustering_hackers'
16:00:46 <moizer> #chair tbachman
16:00:46 <odl_meetbot> Current chairs: moizer tbachman
16:01:02 <tbachman> moizer: not on the call — and about to pop off for about 20
16:01:04 <tbachman> sorry!
16:01:21 <moizer> np - this was just in case :)
16:01:24 <tbachman> :)
16:11:04 <ttkacik1> Hi could someone point to webex coordinates?
16:11:12 <ttkacik1> disappeared from my calendar
16:52:16 <moizer> #topic bugs
16:53:43 <moizer> #info Mark was able to reproduce issue with bug 2653 using clustering in Helium SR2. Need to figure out how to provide a patch for it.
16:54:40 <moizer> #info Moiz still playing around with 3-Node cluster and trying to find the optimal back-pressure to apply and the optimal election timeout factor
16:55:16 <moizer> #info Tom wan’t to start a RaftActor as a Leader if there are no Followers. Will create a bug for it.
16:55:32 <moizer> #topic reviews
16:55:59 <moizer> #info Tom to merge Kamal’s changes today if possible as Kamal will be out for next 10 days
16:57:02 <moizer> #info Tom has a patch on batching operations in a transaction to reduce the number of messages that flow between TransactionProxy to ShardTransaction - added more eyes to it
16:58:15 <moizer> #topic Vamsi observations on Migration to akka 2.3.9 and clustered data store performance
16:59:13 <moizer> #info Had to reduce the list elements per transaction to 1,000 from 100,000 to make test go through
16:59:46 <moizer> #info Performance limited by I/O. All transactions were done on the config datastore
17:00:20 <moizer> #info 1 transaction with 100,000 operations takes in the order of 152s
17:00:37 <moizer> #info Need to understand if this is pure I/O related or something else is in play
17:01:53 <moizer> #info Tom thinks batching operations may help as it reduces the communication between Transaction Proxy and ShardTransaction and Serialization is more efficient
17:03:13 <moizer> #info Switching from akka 2.3.4 -> 2.3.9 appears to be safe. Vamsi to propose a patch for this upgrade.
17:03:53 <moizer> #endmeeting