Replica on low-bandwitdh network
Hi guys,
we have some postgreswl 9.6.1 servers in two different continent.
Latency is from 180 to 250 ms between the two sites.
Actually we use Rubyrep for off-site replication, since servers are completely independent in case of connectivity loss.
We are experiencing some problems with lock tables (rubyrep works with trigger to commit changes to the other server),
we think for the uncommon latency.
Which is, for you, the best replication module for Postgresql?
Bucardo? Something else?
Thank you, very best!
F
On Tue, Dec 5, 2017 at 1:12 AM, Job <Job@colliniconsulting.it> wrote:
we have some postgreswl 9.6.1 servers in two different continent.
Latency is from 180 to 250 ms between the two sites.Actually we use Rubyrep for off-site replication, since servers are
completely independent in case of connectivity loss.We are experiencing some problems with lock tables (rubyrep works with
trigger to commit changes to the other server),
we think for the uncommon latency.
You might get more mileage from pglogical (
https://www.2ndquadrant.com/en/resources/pglogical/), which you can use to
ship just the changes, though given my unfamiliarity with Rubyrep maybe
that's what it does too (?)
You might as well try Slony.
Best Regards,
Nawaz Ahmed
-----Original Message-----
From: Job [mailto:Job@colliniconsulting.it]
Sent: Tuesday, 5 December 2017 8:12 PM
To: pgsql-general@postgresql.org
Subject: Replica on low-bandwitdh network
Hi guys,
we have some postgreswl 9.6.1 servers in two different continent.
Latency is from 180 to 250 ms between the two sites.
Actually we use Rubyrep for off-site replication, since servers are completely independent in case of connectivity loss.
We are experiencing some problems with lock tables (rubyrep works with trigger to commit changes to the other server), we think for the uncommon latency.
Which is, for you, the best replication module for Postgresql?
Bucardo? Something else?
Thank you, very best!
F
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I don't know if this is relevant, but we use the default streaming
replication and were not always keeping up. Now we WAL log ship to S3
bucket... seems to work pretty well... cheers Ben
On 5 December 2017 at 17:12, Job <Job@colliniconsulting.it> wrote:
Hi guys,
we have some postgreswl 9.6.1 servers in two different continent.
Latency is from 180 to 250 ms between the two sites.Actually we use Rubyrep for off-site replication, since servers are
completely independent in case of connectivity loss.We are experiencing some problems with lock tables (rubyrep works with
trigger to commit changes to the other server),
we think for the uncommon latency.Which is, for you, the best replication module for Postgresql?
Bucardo? Something else?Thank you, very best!
F
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