4 Replies Latest reply on Sep 23, 2008 10:56 AM by Tim Fox

    JMS HA/Clustering without shared DB

    testrot Newbie

      Hello,

      is it possible to deploy a HA/Clustering solution without the cluster nodes sharing the same DB? Otherwise the DB gets the "single point of failure" unless it is clustered.

      Greetings,
      Martin

        • 1. Re: JMS HA/Clustering without shared DB
          testrot Newbie

          Nobody?
          Is this an uncommon request, or did I miss something when searching for a HA solution without without a clustered DB?

          Greetings,
          Martin

          P.S.: Even a negative response like "there is not possibility and this is not planned" would be appreciated.

          • 2. Re: JMS HA/Clustering without shared DB
            Tim Fox Master

             

            "testrot" wrote:
            Nobody?
            Is this an uncommon request, or did I miss something when searching for a HA solution without without a clustered DB?

            Greetings,
            Martin

            P.S.: Even a negative response like "there is not possibility and this is not planned" would be appreciated.


            A polite word of advice. Don't be too pushy in demanding free advice in a forum in which you're new.

            It's only likely to get people's backs up and make it more unlikely they'll actually want to give you the advice you want.

            Remember, we offer advice in this forum on a "best effort" basis. There are no guarantees how, when or if your post will get answered.

            If you want a guaranteed response within a set time, buy a support contract.

            Most forum answering is done by team members in their own time, at their own expense, so be nice when asking a stranger directions.

            Now, you're lucky I'm a nice person. Many others here would have flamed you immediately.

            The question you asked has been discussed many times on this forum, and in JIRA tasks, and in the user guides.

            Since you are clearly such a busy person, and have not time for your own searching here's the short answer:

            JBM 1.x uses a shared database for persistence. If that database itself is not clustered, yes it's a single point of failure. That's why we recommend running JBM 1.4 against a clustered database such as Mysql Cluster or Oracle RAC.

            JBM 2.0 does not use a database for persistence. it uses a high performance journal and supports shared nothing replication to eliminate any SPOF.

            Hope that answers your question. :)



            • 3. Re: JMS HA/Clustering without shared DB
              testrot Newbie

               

              "timfox" wrote:


              A polite word of advice. Don't be too pushy in demanding free advice in a forum in which you're new.

              It's only likely to get people's backs up and make it more unlikely they'll actually want to give you the advice you want.

              Remember, we offer advice in this forum on a "best effort" basis. There are no guarantees how, when or if your post will get answered.

              If you want a guaranteed response within a set time, buy a support contract.

              Most forum answering is done by team members in their own time, at their own expense, so be nice when asking a stranger directions.

              Now, you're lucky I'm a nice person. Many others here would have flamed you immediately.


              Ok, ok I took your point. Stop beating me :-).

              "timfox" wrote:

              Since you are clearly such a busy person, and have not time for your own searching here's the short answer:


              Of course I did my own searching but obviously I didn't look at the right sources. I read the 1.4.0 user's guide and simply didn't suspect this is a feature planned for 2.0.

              "timfox" wrote:

              JBM 2.0 does not use a database for persistence. it uses a high performance journal and supports shared nothing replication to eliminate any SPOF.

              Hope that answers your question. :)


              Thanks for your answer. That's the information I needed.
              May I politely ask when you plan to release a production ready version of JBM 2.0?


              • 4. Re: JMS HA/Clustering without shared DB
                Tim Fox Master

                 

                "testrot" wrote:

                Thanks for your answer. That's the information I needed.
                May I politely ask when you plan to release a production ready version of JBM 2.0?


                We're aiming for Q1 2009. :)