Re: Artemis Disaster Recovery options

2019-06-24 Thread Clebert Suconic
Ohhh.. you're talking about rsync... perhaps if we disabled reclaim.. it would always be a new file... as right now we reuse a file if we disabled reclaim for your case.. it wouldn't need to reuse files... and it wouldn't have a case of corruption. On Mon, Jun 24, 2019 at 2:40 PM Clebert Suconic

Re: Artemis Disaster Recovery options

2019-06-24 Thread Clebert Suconic
I don't understand what you're talking about with small corruptions of the journal? We write on the backup.. and wait for confirmation.. so clients are blocked until the backup has a copy of the data. On Sun, Jun 23, 2019 at 8:24 PM warm-sun wrote: > > >>> Technically speaking, replication is as

Re: Artemis Disaster Recovery options

2019-06-24 Thread Justin Bertram
> So when the network is down between master and slave (eg slaves network card fails)... the master will keep ACK-ing messages it receieves in this case? In general, yes. Like I said before, the master can be configured to initiate a quorum vote and will shut itself down if it's isolated. > If so

Re: Artemis Disaster Recovery options

2019-06-23 Thread warm-sun
>>> Technically speaking, replication is asynchronous. However, the broker will not send a response to the client until it has received a reply from the slave that the data has been received. ... >>> If the network between the master and slave goes down then by default >>> the master continues like

Re: Artemis Disaster Recovery options

2019-06-22 Thread Justin Bertram
> RedHat AMQ 7 (which is using Artemis under the hood) in their "configuring broker" documentation recommend NOT using [HA replication] across data centers.What is the Artemis position (not on AMQ, but if using Artemis)? Replication was designed to be used across a low-latency, high-performance ne

Re: Artemis Disaster Recovery options

2019-06-19 Thread warm-sun
I have a very similar scenario to the original post. (Multi data center replication is required) I have read all the documentation -- but am unclear about a couple of points: 1) RedHat AMQ 7 (which is using Artemis under the hood) in their "configuring broker" documentation recommend NOT using [HA

Re: Artemis Disaster Recovery options

2017-11-30 Thread Gary Tully
> > > What if any file/directory management would need to be done on the > secondary DC file structure if doing a straight file copy. I wouldn't want > to copy the whole directory every 15 minutes for example, but rather just > reflect the changes. > > There is a challenge with just copying change

Re: Artemis Disaster Recovery options

2017-11-29 Thread Justin Bertram
> What config, if any, would the node in the secondary DC need to have in common with the nodes in the primary DC? It would need to have the same essential configuration (e.g. same addresses, queues, etc.), but it wouldn't necessarily need to be clustered or have its own HA config, etc. > I ass

Re: Artemis Disaster Recovery options

2017-11-29 Thread John Bundred
Thanks Justin. Do you know what sort of considerations I would need to make if doing shipping, e.g. 1) What config, if any, would the node in the secondary DC need to have in common with the nodes in the primary DC? e.g. see the warning box regarding copying data directories and unique node id

Re: Artemis Disaster Recovery options

2017-11-29 Thread Justin Bertram
There's nothing built in to Artemis at this point specifically for the DR use case. However, I believe the "data" directory (where persistent data is stored by default) can be replicated (e.g. via a block-level storage replication solution) or "shipped" via an external process (e.g. rsync) to a DR

Artemis Disaster Recovery options

2017-11-29 Thread JohnBeeBee
I am looking at options for handling local failover and disaster recovery. Our existing primary and secondary data centre hosted services run mainly active-passive and have SAN storage but do not support SAN replication. There is a dedicated network between the two DC's so we have fast, reliable