Hi James, Is 4.2 production ready? Also, I switched the JDBC from mysql to embedded derby db. I still see the disk growth. Is it possible to get the cleanup of records in the db to happen faster? I guess I am asking if there is any configuration parameters that I can set? The CPU usage is minimal. Its just that we produce large sized messages.
I can't use queues because the number of clients varies and they all want the same data. Thanks, Ramesh. -----Original Message----- From: James Strachan [mailto:[EMAIL PROTECTED] Sent: Monday, April 02, 2007 8:44 AM To: users@activemq.apache.org Subject: Re: JDBC Persistance There is a lag if using the journal based on the journal checkpoint time; so using pure JDBC and no journal will use less disk (though be much slower). Also there is a further lag if you are using durable topics (since the deletion of messages is a background task). You might want to use queues if you want more immediate deletion & freeing of resources. Finally using AMQStore in 4.2 should use less disk space than a JDBC database. On 4/2/07, Ramesh Bobba <[EMAIL PROTECTED]> wrote: > Hi James, > > I do want to use persistent delivery. The problem I am seeing is the > messages from the persistent store are not being deleted fast enough. My > disk is getting full. Is there any way to control this? Do you think > setAsyncSend(true) will help? > > > Thanks, > > > Ramesh. > > -----Original Message----- > From: James Strachan [mailto:[EMAIL PROTECTED] > Sent: Monday, April 02, 2007 1:27 AM > To: users@activemq.apache.org > Subject: Re: JDBC Persistance > > On 4/1/07, Ramesh Bobba <[EMAIL PROTECTED]> wrote: > > I have three producers producing 80K messages every 2 seconds, I have > > three consumers subscribed as durable consumers. I am using mysql as > > persistence. What I see is that the messages are being written to the > > database even when all the subscribers are up. > > > > I thought that broker > > only writes to the datasource if it has to. > > It does > > If you don't want persistence to take place, don't use persistent > delivery. > http://cwiki.apache.org/ACTIVEMQ/what-is-the-difference-between-persiste > nt-and-non-persistent-delivery.html > > > -- > > James > ------- > http://radio.weblogs.com/0112098/ > -- James ------- http://radio.weblogs.com/0112098/
