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Posted to issues@activemq.apache.org by "Domenico Francesco Bruscino (Jira)" <ji...@apache.org> on 2021/09/29 06:32:00 UTC

[jira] [Commented] (ARTEMIS-3500) Route messages to broker with large header

    [ https://issues.apache.org/jira/browse/ARTEMIS-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17421958#comment-17421958 ] 

Domenico Francesco Bruscino commented on ARTEMIS-3500:
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The issue that Is causing too many open files should be fixed by ARTEMIS-3467.

> Route messages to broker with large header
> ------------------------------------------
>
>                 Key: ARTEMIS-3500
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3500
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 2.18.0
>         Environment: PROD
>            Reporter: Ekta
>            Priority: Major
>
> Hello,
> Below is what our application and messaging architecture looks like. 
> We have  a Microservice --> nlb --> qpid ---> amq brokers (Master/slave)
> We recently saw a scenario where a java microservice application pushed a few messages to our amq brokers where the message was containing a larger header than the normal size header, which led to a very big disaster and caused our whole amq env to crash. To avoid such cases like these, is there a way to discard a message or handle this situation at the amq layer so that it does not endup in a big mess on our brokers as qpid for us is basically acting like a proxy and simply routes the traffic to brokers. Though the broker rejects this large header message but still stores it in its memory and goes in infinite loop and keeps retrying to process the message which causes over head on the brokers and immediately all the brokers go in shutdown state.
> After filtering out the headers to a smaller size, we could see the issue is resolved. If there is a way to handle this little better on amq or even if it is possible on qpid layer, we would also consider that.
> Appreciate any feedback if anyone have faced this issue before as it could happen again in future. Below are some of the exceptions we saw related to above issue. 
> Caused by: javax.jms.JMSException: AMQ149005: Message of 564,590 bytes is bigger than the max record size of 501,760 bytes. You should try to move large application properties to the message body. [condition = failed]
> 2021-09-22 07:37:01,092 WARN [org.apache.activemq.artemis.core.server] AMQ222086: error handling packet ReplicationSyncFileMessage(LARGE_MESSAGE, id=*********) for replication: java.io.FileNotFoundException: /app/test/large-messages/*********.msg (Too many open files)
> Thanks 



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