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#opendaylight-clustering: clustering_hackers
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Meeting started by moizer at 16:00:28 UTC.  The full logs are available
at
http://meetings.opendaylight.org/opendaylight-clustering/2015/clustering_hackers/opendaylight-clustering-clustering_hackers.2015-02-17-16.00.log.html
.



Meeting summary
---------------

* bugs  (moizer, 16:52:16)
  * 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.
    (moizer, 16:53:43)
  * Moiz still playing around with 3-Node cluster and trying to find the
    optimal back-pressure to apply and the optimal election timeout
    factor  (moizer, 16:54:40)
  * Tom wan’t to start a RaftActor as a Leader if there are no
    Followers. Will create a bug for it.  (moizer, 16:55:16)

* reviews  (moizer, 16:55:32)
  * Tom to merge Kamal’s changes today if possible as Kamal will be out
    for next 10 days  (moizer, 16:55:59)
  * 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  (moizer, 16:57:02)

* Vamsi observations on Migration to akka 2.3.9 and clustered data store
  performance  (moizer, 16:58:15)
  * Had to reduce the list elements per transaction to 1,000 from
    100,000 to make test go through  (moizer, 16:59:13)
  * Performance limited by I/O. All transactions were done on the config
    datastore  (moizer, 16:59:46)
  * 1 transaction with 100,000 operations takes in the order of 152s
    (moizer, 17:00:20)
  * Need to understand if this is pure I/O related or something else is
    in play  (moizer, 17:00:37)
  * Tom thinks batching operations may help as it reduces the
    communication between Transaction Proxy and ShardTransaction and
    Serialization is more efficient  (moizer, 17:01:53)
  * Switching from akka 2.3.4 -> 2.3.9 appears to be safe. Vamsi to
    propose a patch for this upgrade.  (moizer, 17:03:13)



Meeting ended at 17:03:53 UTC.



People present (lines said)
---------------------------

* moizer (18)
* odl_meetbot (4)
* tbachman (3)
* ttkacik1 (2)



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