Concurrent writing to the session.

[chandramohanred]

Hi Team,

We are frequently getting alerts as concurrently writing to this session alerts.

19.03.2021 19:47:56.215 *WARN* [10.43.0.33 [1616183252926] GET /content/ingredion/ingredients/na/thermflo-06810107.html HTTP/1.1] org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate Attempted to perform hasProperty while thread 10.43.0.33 [1616183246828] GET /content/ingredion/ingredients/na/globe-24-de-corn-syrupglucose-solids-019240.html HTTP/1.1 was concurrently writing to this session. Blocked until the other thread finished using this session. Please review your code to avoid concurrent use of a session.

Could you please suggest how to avoid or handle this?

[Asutosh_Jena_]

Hi @chandramohanred 

Are you trying to do anything in a loop somewhere in code with "hasProperty" ?
Also can you please provide some more info like which version of AEM and which service pack?

Thanks!

[Kiran_Vedantam]

Hi @chandramohanred,

Please check my answer here on how to use sessions, resource resolvers to avoid session leaks.

Hope this helps.

Thanks,

Kiran Vedantam.

[bilal_ahmad · Accepted solution]

Hi @chandramohanred you can get an idea from this post: https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/unexpected-concurrency-war... 

Thanks,

Bilal.

[Anudeep_Garnepudi]

@chandramohanred 

Go through the beautiful article by @Jörg_Hoh , will be helpful.

https://cqdump.joerghoh.de/2015/03/02/aem-scaling-patterns-avoid-shared-sessions/