Can't find pages in the paging directory

[cinto_qq]

Hi,

I have setup paging in my configuration, however the pages do not seems to store anywhere in the server.

Here's my hornetq-configuration.xml:

<configuration xmlns="urn:hornetq"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="urn:hornetq /schema/hornetq-configuration.xsd">

   <!-- Connectors -->
   <connectors>
      <connector name="netty-connector">
         <factory-class>org.hornetq.integration.transports.netty.NettyConnectorFactory</factory-class>        
         <param key="host"  value="${hornetq.remoting.netty.host:servername}"/>
         <param key="port"  value="${hornetq.remoting.netty.port:5445}"/>
        </connector>
   </connectors>
  
   <paging-directory>/home/tomcat/messaging/hornetq-2.0.0.GA/data/page</paging-directory>
  
   <!-- Acceptors -->
   <acceptors>
      <acceptor name="netty-acceptor">
         <factory-class>org.hornetq.integration.transports.netty.NettyAcceptorFactory</factory-class>        
         <param key="host"  value="${hornetq.remoting.netty.host:servername}"/>
         <param key="port"  value="${hornetq.remoting.netty.port:5445}"/>
        </acceptor>
   </acceptors>

   <!-- Other config -->

   <security-settings>
      <!--security for example queue-->

     
     <security-setting match="#">
         <permission type="createTempQueue" roles="guest"/>
         <permission type="deleteTempQueue" roles="guest"/>
         <permission type="consume" roles="guest"/>
         <permission type="send" roles="guest"/>
      </security-setting>

   </security-settings>

   <address-settings>
      <address-setting match="jms.queue.pagingQueue">
         <max-size-bytes>100000</max-size-bytes>
         <page-size-bytes>20000</page-size-bytes>
      </address-setting>         

      <address-setting match="jms.queue.exampleQueue">
          <max-size-bytes>100</max-size-bytes>
          <page-size-bytes>10</page-size-bytes>
          <address-full-policy>PAGE</address-full-policy>

      </address-setting>

      <address-setting match="#">
          <!--<max-size-bytes>10485760</max-size-bytes>-->
         <max-size-bytes>100</max-size-bytes>
         <!--<page-size-bytes>1048576</page-size-bytes>-->
         <page-size-bytes>10</page-size-bytes>
         <!--<address-full-policy>PAGE</address-full-policy>-->
      </address-setting>
   </address-settings>

</configuration>

I was sending 5000 messages to exampleQueue. I tried to look for the pages inside the paging-directory, but it was empty. I have checked the permission of the folder, and its writtable. There wasn't any error in the log files as well.

Please let me know if my configuration is correct or where I can find the paging.

Thanks.

Cinto

[ataylor]

maybe paging hasn't kicked in yet and no files created, why do you want to find them anyway?

[cinto_qq]

Hi Andy,

I have realized that my paging-directory is wrong, which is why I can't find my paging. It seems that the path cannot be an absolute path, and is directly relative to the data directory with respect to the config directory.

I am curious to know how paging works. I am wondering if hornetq goes down, can I just move the paging and the journal folders to a new server with a new hornetq, and it will work as normal?

If the above method does not work, how can we do a backup of hornetq server? I do understand that we can use HA or failover method, but this requires both servers to be up. If we can only have 1 server running at any one time, how can we do backups and recovery?

Thanks.

Cinto

[ataylor]

you can deploy your servers in live/backup pairs, this is explained in the user manual i would give it a read.

and yes , you can copy the jourmals to another server if u want

[cinto_qq]

Hi Andy,

Thanks. I have tried the live/backup method from the manual, and is able to get it working.

Can I also make the assumption that in order for the journals copying to work, you need to have the exact same configuration of the servers?

Cinto

[ataylor]

yes thats correct

[cinto_qq]

Hi Andy,

Thanks for helping me with the questions!

Cinto