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From Clebert Suconic <clebert.suco...@gmail.com>
Subject Re: Artemis - 2 node cluster with HA with replication, colocation
Date Thu, 25 May 2017 18:49:34 GMT
BTW: I'm working on improving the core client on failover as we speak
now.. keep in touch :)

On Thu, May 25, 2017 at 11:39 AM, Clebert Suconic
<clebert.suconic@gmail.com> wrote:
> You can also achieve colocated using two different JVMs on each box.
>
> On Thu, May 25, 2017 at 11:39 AM, Clebert Suconic
> <clebert.suconic@gmail.com> wrote:
>> On Thu, May 25, 2017 at 10:24 AM, Brett Delle Grazie
>> <brett.dellegrazie@gmail.com> wrote:
>>> Clebert,
>>>
>>> Thank you for your response.
>>>
>>> I take it you're suggesting I switch the configuration to a replicated
>>> master/slave H/A pair rather than trying to use colocation and in JVM
>>> backups?
>>
>> actually no.. I was referring to use Netty versus InVM on connections
>> to your clients...
>>
>>
>> From the point of view of the client it's always backup/live pair...
>> colocated is just an exchange .. quid pro quo.. you're my backup and
>> I'm live on another port... nothing special about it.
>>
>>
>>
>>>
>>> With respect to my original questions though (assuming I want to prepare
>>> the tests):
>>> Should I explicitly add the backup connectors to the connectors list and
>>> also the static connectors list in the cluster configuration?
>>> Is the "exclusions" list correct?
>>
>>
>> I'm confused on what you're asking here... the usage is quite simple..
>> so I don't know what's missing..
>>>
>>> Thanks,
>>>
>>> Brett
>>>
>>> On 25 May 2017 at 14:35, Clebert Suconic <clebert.suconic@gmail.com> wrote:
>>>
>>>> It's really hard for us to test every single combinations of usage...
>>>>
>>>>
>>>> If you really want to use a local inVM, with a backup on a netty
>>>> connection.. that *should* work... but I'm not aware of any tests on
>>>> that direction... I haven't seen anyone testing that. Not on our
>>>> testsuite.. nor anywhere else I have looked.
>>>>
>>>>
>>>> So, if you could use HA with a Netty connection.. live/backup as
>>>> Netty.. it's probably best..
>>>>
>>>>
>>>>
>>>> Although, if you really want the InVM for any reason (Netty will be
>>>> really fast enough already), you may test.. and even contribute tests
>>>> to our testsuite if you like.
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, May 24, 2017 at 4:59 AM, Brett Delle Grazie
>>>> <brett.dellegrazie@gmail.com> wrote:
>>>> > Hi,
>>>> >
>>>> > I'm trying to build a 2 cluster with colocated backups and replication
>>>> (not
>>>> > shared store). In my particular case I need to use static definitions
>>>> > rather than UDP or JGroups. These are vagrant instances not real. We
are
>>>> > dealing with persistent messages and are attempting to minimise the
risk
>>>> of
>>>> > message loss.
>>>> >
>>>> > I have two questions:
>>>> > 1) Do I need to explicitly add the connectors for the co-located JVMs
to
>>>> > the list of connectors? if so, should they also be added to the
>>>> > cluster-connections/static_connectors section as well?
>>>> > 2) ha-policy/replication/colocated/excludes - am I excluding the right
>>>> > things here? I've followed the 'scale-down' example but I'm not sure
this
>>>> > is right in this case and the documentation around excludes is somewhat
>>>> > confusing.
>>>> >
>>>> > If there's any other advice / recommendations people have regarding
a
>>>> setup
>>>> > like this, please feel free.
>>>> >
>>>> > Thanks in advance,
>>>> >
>>>> > Brett
>>>> >
>>>> > Node-1:
>>>> >       <acceptors>
>>>> >          <acceptor name="invm-acceptor">vm://0</acceptor>
>>>> >          <acceptor name="netty-acceptor">tcp://
>>>> > 0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576
>>>> > </acceptor>
>>>> >       </acceptors>
>>>> >
>>>> >       <connectors>
>>>> >          <connector name="invm-connector">vm://0</connector>
>>>> >          <connector name="node-1-connector">tcp://172.28.128.3:61616
>>>> > </connector>
>>>> >          <connector name="node-2-connector">tcp://172.28.128.4:61616
>>>> > </connector>
>>>> >       </connectors>
>>>> >       <cluster-connections>
>>>> >          <cluster-connection name="vagrant">
>>>> >             <address>jms</address>
>>>> >             <connector-ref>node-1-connector</connector-ref>
>>>> >             <static-connectors>
>>>> >                <connector-ref>node-1-connector</connector-ref>
>>>> >                <connector-ref>node-2-connector</connector-ref>
>>>> >             </static-connectors>
>>>> >          </cluster-connection>
>>>> >       </cluster-connections>
>>>> >       <ha-policy>
>>>> >          <replication>
>>>> >             <colocated>
>>>> >                <max-backups>1</max-backups>
>>>> >                <request-backup>true</request-backup>
>>>> >
>>>> >  <backup-request-retry-interval>1000</backup-request-retry-interval>
>>>> >                <excludes>
>>>> >                   <connector-ref>invm-connector</connector-ref>
>>>> >                   <connector-ref>node-1-connector</connector-ref>
>>>> >                   <!-- <connector-ref>node-2-connector</connector-ref>
>>>> -->
>>>> >                </excludes>
>>>> >                <master>
>>>> >                  <check-for-live-server>true</check-for-live-server>
>>>> >                </master>
>>>> >                <slave>
>>>> >                  <allow-failback>true</allow-failback>
>>>> >                </slave>
>>>> >             </colocated>
>>>> >          </replication>
>>>> >       </ha-policy>
>>>> >
>>>> > Node 2:
>>>> >       <acceptors>
>>>> >          <acceptor name="invm-acceptor">vm://0</acceptor>
>>>> >          <acceptor name="netty-acceptor">tcp://
>>>> > 0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576
>>>> > </acceptor>
>>>> >       </acceptors>
>>>> >
>>>> >       <cluster-user>cluster</cluster-user>
>>>> >       <cluster-password>cluster</cluster-password>
>>>> >
>>>> >       <connectors>
>>>> >          <connector name="invm-connector">vm://0</connector>
>>>> >          <connector name="node-1-connector">tcp://172.28.128.3:61616
>>>> > </connector>
>>>> >          <connector name="node-2-connector">tcp://172.28.128.4:61616
>>>> > </connector>
>>>> >       </connectors>
>>>> >       <cluster-connections>
>>>> >          <cluster-connection name="vagrant">
>>>> >             <address>jms</address>
>>>> >             <connector-ref>node-2-connector</connector-ref>
>>>> >             <static-connectors>
>>>> >                <connector-ref>node-1-connector</connector-ref>
>>>> >                <connector-ref>node-2-connector</connector-ref>
>>>> >             </static-connectors>
>>>> >          </cluster-connection>
>>>> >       </cluster-connections>
>>>> >       <ha-policy>
>>>> >          <replication>
>>>> >             <colocated>
>>>> >                <max-backups>1</max-backups>
>>>> >                <request-backup>true</request-backup>
>>>> >
>>>> >  <backup-request-retry-interval>1000</backup-request-retry-interval>
>>>> >                <excludes>
>>>> >                   <connector-ref>invm-connector</connector-ref>
>>>> >                   <!-- <connector-ref>node-1-connector</connector-ref>
>>>> -->
>>>> >                   <connector-ref>node-2-connector</connector-ref>
>>>> >                </excludes>
>>>> >                <master>
>>>> >                  <check-for-live-server>true</check-for-live-server>
>>>> >                </master>
>>>> >                <slave>
>>>> >                  <allow-failback>true</allow-failback>
>>>> >                </slave>
>>>> >             </colocated>
>>>> >          </replication>
>>>> >       </ha-policy>
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> > Kind regards,
>>>> >
>>>> > Brett Delle Grazie
>>>>
>>>>
>>>>
>>>> --
>>>> Clebert Suconic
>>>>
>>>
>>>
>>>
>>> --
>>> Kind regards,
>>>
>>> Brett Delle Grazie
>>
>>
>>
>> --
>> Clebert Suconic
>
>
>
> --
> Clebert Suconic



-- 
Clebert Suconic

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