On 1/24/2013 12:09 AM, Greg Sabino Mullane wrote:
On Wed, Jan 23, 2013 at 05:15:42AM -0800, Chris Keane wrote:
Thanks Greg. Would the appropriate approach to implement this be to
set up each mobile database with it's own set of uniquely named
syncs that just includes itself and the central database?
Yes.
Can each single table on the central database participate in
multiple syncs without problem?
Yes
I finally got to the point of setting this up between three databases:
ClientA:source <-----> Main:source <-------> ClientB:source
ClientA and ClientB run their own bucardo processes, syncing with the
central database Main. Eventually there will be many more Clients, each
syncing with the central database. We did it this way because the
Clients are almost always disconnected but randomly reconnect to get
updates.
Each table in the sync is set with makedelta=Main
The actual data replication is working: updates on ClientA get
replicated to ClientB and vice versa, updates on Main get replicated to
both Clients.
Each client has its own set of uniquely named syncs. For example,
ClientA has a sync named ClientA_noncritical, and ClientB has the same
one named ClientB_noncritical
Question 1
=========
In log.bucardo, when an update is made to a replicated table on ClientA,
on ClientB I see a message like:
MCP Warning: Unknown sync to be kicked: "ClientA_noncritical"
So question 1, should the syncs be not uniquely named? Should they all
be just "noncritical" instead of "ClientX_noncritical"? Note that the
replication still happens.
Question 2
=========
In log.bucardo I see the replication happen, but also
Expected one row from end_syncrun, but got 3
Unable to correctly update syncrun table! (count was 3)
The count is different on each Client, and sometimes increments with an
update and sometimes not, but it doesn't decrease. On the updates on
which it increases I see the update tried, then a message "Could not
serialize, will sleep for 0.5 seconds", after which it tries again
successfully.
Is this anything to be concerned about?
Thanks!
Chris
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