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  1. 20 Apr, 2016 1 commit
  3. 25 Jan, 2016 1 commit
  5. 01 Dec, 2015 1 commit
    • Julien Muchembled's avatar
      Safer DB truncation, new 'truncate' ctl command · d3c8b76d
      Julien Muchembled authored 
      With the previous commit, the request to truncate the DB was not stored
persistently, which means that this operation was still vulnerable to the case
where the master is restarted after some nodes, but not all, have already
truncated. The master didn't have the information to fix this and the result
was a DB partially truncated.

-> On a Truncate packet, a storage node only stores the tid somewhere, to send
   it back to the master, which stays in RECOVERING state as long as any node
   has a different value than that of the node with the latest partition table.

We also want to make sure that there is no unfinished data, because a user may
truncate at a tid higher than a locked one.

-> Truncation is now effective at the end on the VERIFYING phase, just before
   returning the last ids to the master.

At last all nodes should be truncated, to avoid that an offline node comes back
with a different history. Currently, this would not be an issue since
replication is always restart from the beginning, but later we'd like they
remember where they stopped to replicate.

-> If a truncation is requested, the master waits for all nodes to be pending,
   even if it was previously started (the user can still force the cluster to
   start with neoctl). And any lost node during verification also causes the
   master to go back to recovery.

Obviously, the protocol has been changed to split the LastIDs packet and
introduce a new Recovery, since it does not make sense anymore to ask last ids
during recovery.
      d3c8b76d
  7. 05 Oct, 2015 1 commit
  9. 24 Sep, 2015 2 commits
  11. 14 Aug, 2015 1 commit
    • Julien Muchembled's avatar
      Do not reconnect too quickly to a node after an error · d898a83d
      Julien Muchembled authored 
      For example, a backup storage node that was rejected because the upstream
cluster was not ready could reconnect in loop without delay, using 100% CPU
and flooding logs.

A new 'setReconnectionNoDelay' method on Connection can be used for cases where
it's legitimate to quickly reconnect.

With this new delayed reconnection, it's possible to remove the remaining
time.sleep().
      d898a83d
  13. 12 Aug, 2015 2 commits
  15. 21 May, 2015 1 commit
  17. 07 Jan, 2014 1 commit
  19. 20 Aug, 2012 1 commit
  21. 16 Aug, 2012 1 commit
  23. 01 Aug, 2012 1 commit
  25. 13 Mar, 2012 1 commit
  27. 12 Mar, 2012 1 commit
    • Julien Muchembled's avatar
      New feature to check that partitions are replicated properly · 04f72a4c
      Julien Muchembled authored 
      This includes an API change of Node.isIdentified, which now tells whether
identification packets have been exchanged or not.
All handlers must be updated to implement '_acceptIdentification' instead of
overriding EventHandler.acceptIdentification: this patch only does it for
StorageOperationHandler
      04f72a4c
  29. 17 Jan, 2012 1 commit
  31. 06 Jan, 2012 1 commit
  33. 26 Oct, 2011 1 commit
  35. 05 Sep, 2011 1 commit
  37. 02 May, 2011 1 commit
  39. 25 Feb, 2011 1 commit
    • Olivier Cros's avatar
      Implementing ipv6 on neo · 0cdbf0ea
      Olivier Cros authored 
      In order to synchronise neo with slapos, it has to work perfectly with ipv4
and ipv6. This allows to integrate neo in erp5 and to prepare different buildout
installations of neo.
The protocol and connectors are no more generic but can now support IPv4 and
IPv6 connections. We adopted a specific way of development which allow to
easily add new protocols in the future.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2654 71dcc9de-d417-0410-9af5-da40c76e7ee4
      0cdbf0ea
  41. 17 Jan, 2011 1 commit
  43. 01 Nov, 2010 2 commits
  45. 16 Sep, 2010 1 commit
  47. 16 Mar, 2010 1 commit
  49. 08 Mar, 2010 1 commit
  51. 01 Mar, 2010 1 commit
  53. 08 Feb, 2010 1 commit
  55. 01 Feb, 2010 1 commit
  57. 28 Jan, 2010 1 commit
  59. 20 Jan, 2010 1 commit
  61. 07 Oct, 2009 1 commit
  63. 05 Oct, 2009 1 commit
  65. 01 Oct, 2009 3 commits
  67. 30 Sep, 2009 1 commit
  69. 07 Aug, 2009 1 commit
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