Re: [HACKERS] Using non-sequential timelines in order to help with possible collisions

2017-07-19 Thread Michael Paquier
On Wed, Jul 19, 2017 at 8:05 PM, Tom Lane wrote: > Michael Paquier writes: >> On Wed, Jul 19, 2017 at 7:00 PM, Robert Haas wrote: >>> It's interesting that you bring this up. I've also wondered why we >>> don't use random TLIs. I suppose I'm internally assuming that it's >>> because the people

Re: [HACKERS] Using non-sequential timelines in order to help with possible collisions

2017-07-19 Thread Tom Lane
Michael Paquier writes: > On Wed, Jul 19, 2017 at 7:00 PM, Robert Haas wrote: >> It's interesting that you bring this up. I've also wondered why we >> don't use random TLIs. I suppose I'm internally assuming that it's >> because the people who wrote the code are far more brilliant and >> knowle

Re: [HACKERS] Using non-sequential timelines in order to help with possible collisions

2017-07-19 Thread Michael Paquier
On Wed, Jul 19, 2017 at 7:00 PM, Robert Haas wrote: > On Wed, Jul 19, 2017 at 11:23 AM, Brian Faherty > wrote: >> I was working with replication and recovery the other day and noticed that >> there were scenarios where I could cause multiple servers to enter the same >> timeline while possibly

Re: [HACKERS] Using non-sequential timelines in order to help with possible collisions

2017-07-19 Thread Robert Haas
On Wed, Jul 19, 2017 at 11:23 AM, Brian Faherty wrote: > Hey hackers, > I was working with replication and recovery the other day and noticed that > there were scenarios where I could cause multiple servers to enter the same > timeline while possibly having divergent data. One such scenario is M

[HACKERS] Using non-sequential timelines in order to help with possible collisions

2017-07-19 Thread Brian Faherty
Hey hackers, I was working with replication and recovery the other day and noticed that there were scenarios where I could cause multiple servers to enter the same timeline while possibly having divergent data. One such scenario is Master A and Replica B are both on timeline 1. There is an event