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ASF GitHub Bot logged work on ARTEMIS-2513: ------------------------------------------- Author: ASF GitHub Bot Created on: 14/Oct/19 19:57 Start Date: 14/Oct/19 19:57 Worklog Time Spent: 10m Work Description: clebertsuconic commented on issue #2859: ARTEMIS-2513 Large message's copy may be interfered by other threads URL: https://github.com/apache/activemq-artemis/pull/2859#issuecomment-541887630 @gaohoward can I keep this open for 1 or 2 days? I'm doing some work on large messages and I want to make sure why we have that code to close or keep files open. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 328088) Time Spent: 1h 50m (was: 1h 40m) > Large message's copy may be interfered by other threads > ------------------------------------------------------- > > Key: ARTEMIS-2513 > URL: https://issues.apache.org/jira/browse/ARTEMIS-2513 > Project: ActiveMQ Artemis > Issue Type: Bug > Components: Broker > Affects Versions: 2.10.1 > Reporter: Howard Gao > Assignee: Howard Gao > Priority: Major > Fix For: 2.11.0 > > Time Spent: 1h 50m > Remaining Estimate: 0h > > In LargeMessageImpl.copy(long) it need to open the underlying file in order > to read and copy bytes into the new copied message. However there is a chance > that another thread can come in and close the file in the middle, making the > copy failed with "channel is null" error. > This is happening in cases where a large message is sent to a jms topic > (multicast address). During delivery it to multiple subscribers, some > consumer is doing delivery and closed the underlying file after. Some other > consumer is rolling back the messages and eventually move it to DLQ (which > will call the above copy method). So there is a chance this bug being hit on. -- This message was sent by Atlassian Jira (v8.3.4#803005)