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Posted to users@activemq.apache.org by akhil <ak...@gmail.com> on 2017/10/31 22:06:15 UTC

Re: Active MQ Shared File System Master Slave with Elastic File System

Hello Everyone , 

I just had an issue today with the Active MQ EFS where one of the master
lost its mount and two brokers acted as a master master instead of complete
failover. I have just looked at the pluggable storage lockers but it was all
giving that locks to JDBC stores not the EFS ones . Is there any recommended
way of using the correct setting or pluggable lockers for the EFS boxes to
make a correct failover ? I am using amq version 5.13.4.

Please suggest options.

Thanks,
Akhil.



--
Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html

Re: Active MQ Shared File System Master Slave with Elastic File System

Posted by Tim Bain <tb...@alumni.duke.edu>.

It also probably wouldn't be that hard for you to implement a
Zookeeper-based Locker if that sounded more appealing than a SQL database,
since it sounds like you might feel negatively about using an RDBMS.

If you do, we'd love have you donate it back to the community if your
company would allow it; that lets other people benefit from what you
implemented and (key point) means that we - not you - are on the hook for
long-term maintenance.

Tim

On Oct 31, 2017 4:11 PM, "Johan Edstrom" <se...@gmail.com> wrote:

> Using JDBC you can get both.
>
>
>
> <persistenceAdapter>
>     <kahaDB directory="target/activemq-data" lockKeepAlivePeriod="5000">
>         <locker>
>             <!-- When used with the KahaDB persistence adapter the
> 'dataSource' attribute must be defined on the locker itself: -->
>             <lease-database-locker lockAcquireSleepInterval="10000"
> dataSource="#mysql-ds">
>                 <statements>
>                     <!-- Default locker attributes and SQL statements may
> be overridden here
>                          using one or more <statements
> attribute_or_statement="value"/> entries: -->
>                     <statements lockTableName="activemq_lock"/>
>                 </statements>
>             </lease-database-locker>
>         </locker>
>     </kahaDB>
> </persistenceAdapter>
>
>
>
>
> > On Oct 31, 2017, at 4:06 PM, akhil <ak...@gmail.com> wrote:
> >
> > Hello Everyone ,
> >
> > I just had an issue today with the Active MQ EFS where one of the master
> > lost its mount and two brokers acted as a master master instead of
> complete
> > failover. I have just looked at the pluggable storage lockers but it was
> all
> > giving that locks to JDBC stores not the EFS ones . Is there any
> recommended
> > way of using the correct setting or pluggable lockers for the EFS boxes
> to
> > make a correct failover ? I am using amq version 5.13.4.
> >
> > Please suggest options.
> >
> > Thanks,
> > Akhil.
> >
> >
> >
> > --
> > Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-
> f2341805.html
>
>

Re: Active MQ Shared File System Master Slave with Elastic File System

Posted by Johan Edstrom <se...@gmail.com>.

Using JDBC you can get both.



<persistenceAdapter>
    <kahaDB directory="target/activemq-data" lockKeepAlivePeriod="5000">
        <locker>
            <!-- When used with the KahaDB persistence adapter the 'dataSource' attribute must be defined on the locker itself: -->
            <lease-database-locker lockAcquireSleepInterval="10000" dataSource="#mysql-ds">
                <statements>
                    <!-- Default locker attributes and SQL statements may be overridden here 
                         using one or more <statements attribute_or_statement="value"/> entries: --> 
                    <statements lockTableName="activemq_lock"/>
                </statements>
            </lease-database-locker>
        </locker>
    </kahaDB>
</persistenceAdapter>




> On Oct 31, 2017, at 4:06 PM, akhil <ak...@gmail.com> wrote:
> 
> Hello Everyone , 
> 
> I just had an issue today with the Active MQ EFS where one of the master
> lost its mount and two brokers acted as a master master instead of complete
> failover. I have just looked at the pluggable storage lockers but it was all
> giving that locks to JDBC stores not the EFS ones . Is there any recommended
> way of using the correct setting or pluggable lockers for the EFS boxes to
> make a correct failover ? I am using amq version 5.13.4.
> 
> Please suggest options.
> 
> Thanks,
> Akhil.
> 
> 
> 
> --
> Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html