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https://issues.apache.org/jira/browse/ARTEMIS-2244?focusedWorklogId=194649&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-194649
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ASF GitHub Bot logged work on ARTEMIS-2244:
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Author: ASF GitHub Bot
Created on: 05/Feb/19 16:32
Start Date: 05/Feb/19 16:32
Worklog Time Spent: 10m
Work Description: michaelandrepearce commented on issue #2533:
ARTEMIS-2244 checkDepage method placed outside CRITICAL_DELIVER avoid critical
analyzer timeout
URL: https://github.com/apache/activemq-artemis/pull/2533#issuecomment-460706195
-1 critical analyzer was implemented specifically to pick up disk and other
issues, that are on critical path but not performant.
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Issue Time Tracking
-------------------
Worklog Id: (was: 194649)
Time Spent: 20m (was: 10m)
> checkDepage method placed outside CRITICAL_DELIVER avoid critical analyzer
> timeout
> ----------------------------------------------------------------------------------
>
> Key: ARTEMIS-2244
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2244
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Reporter: yuebao
> Priority: Major
> Attachments: threaddump.txt
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> We found server crash becauseof critical analyzer timeout, thread dump can be
> seen in attachment.
> Suppose that there is a topic t with two subscriber ta and tb. Some messages
> were routed to subscriber ta, not to tb. When a consumer that subscribe tb is
> created and send ConsumerCredits to server, ServerConsumerImpl will call
> promptDelivery method, then forceDelivery() -> messageQueue.deliverAsync() ->
> deliverRunner will executed in the pageSubscription's executor(step1), then
> checkDepage(step2) -> pageIterator.hasNext(synchronized method) -> next ->
> moveNext, moveNext method will iterate through queue until find a matching
> message. At this time(step1), DeliverRunner call deliver method ->
> checkDepage -> pageIterator.hasNext, this step blocked on CursorIterator
> which was locked by step2, then critical analyzer timeout.
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