Hi Malinga, On Fri, Aug 30, 2013 at 2:42 PM, Malinga Purnasiri <[email protected]>wrote:
> hi Ishara, > > As i remember since per message count increment to DB kill the performance > of MB considerably; we all thought of removing it for the moment. With the > new disruptor changes we thought of updating queue count periodically (not > in real-time). So i think its not good idea to depend on the queue count > for the purging operation. instead .. > > What if we use [1] receive(timeout). We can set the timeout to (may be) 5 > secs. > > Any ideas ? > I used [1] as suggested with a timeout of 30 secs and got queue purging works fine. IIRC before introducing the disruptor we were unable to use receive(timeout) method from API due to the latency of retrieving messages from Queue, however the process has good speed now. With new fix when purge is clicked it will empty the Queue in blocking manner while a loading message is displayed and will return back after purging is done. Fixed and committed in r184738. Thanks! Ishara > > [1] > http://docs.oracle.com/javaee/1.4/api/javax/jms/MessageConsumer.html#receive(long) > > > > > On Wed, Aug 28, 2013 at 2:01 PM, Ishara Premadasa <[email protected]> wrote: > >> Hi, >> >> Since we have removed the message counters after introducing the >> disruptor based message processing for MB 2.1.1 both the above features >> are currently not working and we are trying to fix this. As the previous >> MessageWriter, implementations from 2.1.0 are no longer used, now we don't >> keep message counts stored in Cassandra so the counters are always shown as >> zero. Due to this the current queue purge feature has too broken since it >> periodically checks the message counter and performs purge operation >> continuously till the total message count in the queue is zero. >> >> IMO we need to find an alternative way to get message counters work in >> the queue as the message writers are not used now. If not we may need to >> remove these two features from UI, since purging too depending on the >> counters. >> >> Thanks! >> Ishara >> >> -- >> Ishara Premasada >> Software Engineer, >> WSO2 Inc. http://wso2.com/ >> *Blog : http://isharapremadasa.blogspot.com/ >> Twitter : https://twitter.com/ishadil >> Mobile : +94 714445832* >> >> >> > > > -- > Malinga Pathmal, > Technical Lead, WSO2, Inc. : http://wso2.com/ > Phone : (+94) 715335898 > -- Ishara Premasada Software Engineer, WSO2 Inc. http://wso2.com/ *Blog : http://isharapremadasa.blogspot.com/ Twitter : https://twitter.com/ishadil Mobile : +94 714445832*
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