It is already there and I have forgot to mention. Apart from above 5 steps we do,
>> delete all in-memory accumulated messages >> delete all DLC messages belonging to foo. On Tue, Apr 8, 2014 at 9:32 AM, Pamod Sylvester <pa...@wso2.com> wrote: > When a particular queue is purged also we need to ensure that the messages > that corresponds to it in the DLC should be purged. > > Thanks, > Pamod > > > On Tue, Apr 8, 2014 at 9:14 AM, Hasitha Hiranya <hasit...@wso2.com> wrote: > >> Hi, >> >> >> In MB 2.1.0 and also in MB 2.1.1 when purging messages of a queue from >> UI, we used the following approach. >> >> 1. When purge is click for a particular queue we start a JMS AUTO_ACK >> consumer. It will listen to all the messages and ack to the server. >> 2. When acked messages are removed. >> >> But, in fact, above approach had many flows on its own. It was not >> reliable when we have a lot of messages. Also it was a time consuming task >> when there is a lot of messages. >> >> Thus from MB 2.2.0 onwards we are introducing following steps to delete >> messages of a queue when purging clusterwide. >> >> 1. Say there is a MB cluster of nodes MB1, MB2, MB3. >> 2. We go to the UI of MB2 and click purge on queue foo. >> 3. Then it will >> >> >>delete all messages addressed to foo sweeping through messages >> (1000 at a time) in Global Queue. >> >> delete metadata and schedule to delete content. >> >> send notifications to all nodes to purge messages addressed to >> queue foo from their Node Queues >> 4. Handling the notification each node will perform a search in their >> respective node queues for messages addressed to foo and delete. >> >> 5. In that way all messages addressed to foo will be removed from >> cluster. >> >> This change is already committed to relevant >> components/stubs/dependencies. >> >> Thanks. >> >> -- >> *Hasitha Abeykoon* >> Software Engineer; WSO2, Inc.; http://wso2.com >> *cell:* *+94 719363063* >> *blog: **abeykoon.blogspot.com* <http://abeykoon.blogspot.com> >> >> > > > -- > *Pamod Sylvester * > * Software Engineer * > Integration Technologies Team, WSO2 Inc.; http://wso2.com > email: pa...@wso2.com cell: +94 77 7779495 > -- *Hasitha Abeykoon* Software Engineer; WSO2, Inc.; http://wso2.com *cell:* *+94 719363063* *blog: **abeykoon.blogspot.com* <http://abeykoon.blogspot.com>
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