[jira] [Comment Edited] (ARTEMIS-1982) Queue#MessageCount negative and messages stop flowing to AMQP consumer

["Keith Wall (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARTEMIS-1982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559629#comment-16559629 ] 

Keith Wall edited comment on ARTEMIS-1982 at 7/27/18 11:54 AM:
---------------------------------------------------------------

I've been successful in reproducing the first part of the described defect ({{MessageCount}} etc) going negative.    There is a standalone reproducer for the issue at the following location which requires only Artemis and the reproducer.  Instructions for included in the {{README.md}}.  There appears to be an accounting problem in the Broker when the Broker receives a Modified disposition.

[https://github.com/k-wall/artemis_defect_1982]

 


was (Author: k-wall):
I've been successful in reproducing the first part of the described defect ({{MessageCount}} etc) going negative.    There is a standalone reproducer for the issue at the following location which requires only Artemis and the reproducer.  Instructions for included in the {{README.md}}.

https://github.com/k-wall/artemis_defect_1982

 

> Queue#MessageCount negative and messages stop flowing to AMQP consumer
> ----------------------------------------------------------------------
>
>                 Key: ARTEMIS-1982
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1982
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>    Affects Versions: 2.5.0
>            Reporter: Keith Wall
>            Priority: Major
>         Attachments: ARTEMIS-1982.log
>
>
> I am running performance tests against EnMasse which currently uses Artemis 2.5.0.   Many millions of messages have traversed the Broker (all AMQP protocol).
>  
> I have encountered a situation where messages have stopped flowing to the AMQP consumer.  On inspection of the Artemis console, I notice that statistics including the MessageCount have gone negative (-99). One in this state, I notice if I produce one message  then attach a consumer, no message flows.  However if add two messages to the queue, the consumer gets only the 2nd message.  The first message is seemingly lost.
> I've seen this situation once.
>  
> bash-4.2$ curl --user admin:admin -k [https://localhost:8161/console/jolokia/read/org.apache.activemq.artemis:broker=%22broker-0%22,component=addresses,address=%22queue%22,subcomponent=queues,routing-type=%22anycast%22,queue=%22queue%22]
>  
> {code:javascript}
> {
> "request": {
> "mbean": "org.apache.activemq.artemis:address=\"queue\",broker=\"broker-0\",component=addresses,queue=\"queue\",routing-type=\"anycast\",subcomponent=queues",
> "type": "read"
> },
> "value": {
> "User": "null",
> "MaxConsumers": -1,
> "Address": "queue",
> "Exclusive": false,
> "PurgeOnNoConsumers": false,
> "DurableDeliveringSize": 0,
> "PersistentSize": -68112,
> "ScheduledCount": 0,
> "MessagesKilled": 99,
> "Name": "queue",
> "DurableScheduledCount": 0,
> "DurableMessageCount": 0,
> "ExpiryAddress": null,
> "ID": 6,
> "FirstMessageAsJSON": "[{}]",
> "RoutingType": "ANYCAST",
> "Paused": false,
> "DurableDeliveringCount": 0,
> "FirstMessageAge": null,
> "DeadLetterAddress": "DLQ",
> "DurablePersistentSize": 0,
> "MessagesAdded": 39470041,
> "ConsumerCount": 1,
> "DeliveringCount": -99,
> "MessagesAcknowledged": 39469942,
> "MessagesExpired": 0,
> "DeliveringSize": -68112,
> "LastValue": false,
> "Temporary": false,
> "FirstMessageTimestamp": null,
> "Filter": null,
> "ScheduledSize": 0,
> "Durable": true,
> "DurableScheduledSize": 0,
> "MessageCount": -99
> },
> "timestamp": 1532007015,
> "status": 200
> }
> {code}



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