qihongxu opened a new pull request #2549: ARTEMIS-2251 Large messages might not 
be deleted when server crashed
URL: https://github.com/apache/activemq-artemis/pull/2549
 
 
   When deleting large messages, artemis will use storePendingLargeMessage to 
insert a temporary record in journal for reload, in case server crashed and 
large messages stayed forever. But in storePendingLargeMessage that 
appendAddRecord inserts records asynchronously. In this way there are potential 
risks that tasks in executor get lost due to server crash, which may lead to 
undeletable large messages. To solve this problem a Boolean is added to 
storePendingLargeMessage so that it will be forced to use SimpleWaitIOCallback 
in delete situation.

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