Questions tagged [multi-master-replication]
102 questions
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synchronization issues about hadoop federation
I have some questions about hadoop federation.
As far as I know, it has multiple masters(namenode) running at same time.
So my question is that if a client has a request, how to determine which master to serve the request from client.
Another…
John
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Algorithm for distributed messaging?
I have a distributed application across which I'd like to replicate a single, eventually consistent state. The data is suitable for a CRDT (http://pagesperso-systeme.lip6.fr/Marc.Shapiro/papers/RR-6956.pdf) which has the excellent property that each…
levand
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mysql replication master-master-master
We currently have MySQL configured to support fail-over : Site1 <----> Site2 . While they are setup as master/master. Only one site is actively being written to by the app servers at a given point in time.
We want to setup a new fail-over site. We…
itgeek
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How to update all primary keys in the existing database
I'm moving mysql multi-master replication to production using tungsten. I had setup the auto increment and offset values in my.cnf file. To achieve this i'll have to update my all primary keys of all databases to auto increment. Had any one done…
Swaroop Kundeti
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Can I use codeigniter session_id to SmartScale sessionid in Tungsten Replicator for MySQL?
I am trying to use Tungsten Replicator for MySQL.
I am using only one database for whole php application.
and I want to use SmartScale feature. to configure SmartScale it needs a sessionid.
i found some possible sessionid in their…
user3011768
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Keeping Django databases in sync in real time with intermittent connections
Currently I am working on a data gathering project in which we are using deployed data gathering devices as well as a centralized server that will store all aggregated data from multiple deployed devices. Both the deployed data gathering devices and…
jhilliar
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Different size of log-bin files in master-master Mysql replication
I have master-master Mysql replication. Each master replicates other master. Could anyone please explain me why log-bin files on that master are different? (The difference in size is quite small).
Thanks!
Dedyshka
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Getting last position in master-file-log (MySQL replication)?
How could I retrieve last position in master's log-bin? For example when I write CHANGE MASTER TO... I can't see master's status so I don't know the master-file-pos...
Dedyshka
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Writing into multiple MySQL databases async
I am using AWS RDS so database replication between regions are impossible.
My application written in PHP and deployed on all regions, i am looking for a fast and reliable way to achieve that.
I am going to make MySQL connections :
SET…
user765525
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git multi master setup?
I have been tasked with configuring the following setup.
Currently, we have an internal canonical repo for an opensource project. We have a post-receive hook that pushes any updates to a remote repository exposed to the public.
Joe Public can pull…
user1757914
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MySQL multi-muster replication
I need to create multi-muster replication using 4 MySQL servers.
After research, I found 2 way to do this:
1) Ring connection.
... Server_1 -> Server_2 -> Server_3 -> Server_4 -> Server_1 ...
2) Using Tungsten…
smie
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Mariadb Galera Cluster Multi-Master Slow execution of queries
I have a problem with Galera multi-master. When I run query(SELECT) in node1 is executed for 0.025 sec , but on node2 same query is executed for 5.172 sec and in node3 result is 4.347 sec.
Node1 config…
Fifoa
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