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rajkumar.boga avatar image
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ConcurrentModificationException in EMA

Hi Team,

We recently migrated our code using TREP EMA API using jdk 1.8. After that we faced 2 times below ConcurrentModificationException error in PROD env and hence our process terminated. Then we had to start our service again. Kindly help to fix this issue ASAP.

We made the connection to TREP using DACSID provided by MDS team and reference code EMA Consumer - Requesting and displaying MarketPrice data shared by Umer Nalla/Team.

FYI. My prev question: https://community.developers.refinitiv.com/questions/10437/socket-programming-to-trep.html?childToView=11899

java.util.ConcurrentModificationException

at java.util.HashMap$HashIterator.remove(HashMap.java:1451)

at com.thomsonreuters.ema.access.OmmBaseImpl.rsslReactorDispatchLoop(OmmBaseImpl.java:985)

at com.thomsonreuters.ema.access.OmmBaseImpl.uninitialize(OmmBaseImpl.java:258)

at com.thomsonreuters.ema.access.OmmConsumerImpl.uninitialize(OmmConsumerImpl.java:46)

at com.d3k.reuters.DealLocator.startDealService(DealLocator.java:193)

at com.d3k.reuters.DealLocator.<init>(DealLocator.java:75)

at com.d3k.reuters.ReutersStartup.startService(ReutersStartup.java:66)

at com.d3k.reuters.ReutersStartup.main(ReutersStartup.java:81)

elektronrefinitiv-realtimeelektron-sdktrepema-apirrtelektron-message-api
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Nipat Kunvutipongsak avatar image   Nipat Kunvutipongsak

Monitored by @Nipat Kunvutipongsak

pimchaya.wongrukun01 avatar image   pimchaya.wongrukun01

Hello @rajkumar.boga

Thank you for your participation in the forum. Is the reply below satisfactory in resolving your query? If yes please click the 'Accept' text next to the reply. This will guide all community members who have a similar question. Otherwise please post again offering further insight into your question.

Thanks,

AHS

veerapath.rungruengrayubkul avatar image   veerapath.rungruengrayubkul

@rajkumar.boga

Please be informed that a reply has been verified as correct in answering the question, and has been marked as such.

Thanks,

AHS

2 Answers

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Nipat Kunvutipongsak avatar image
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To clarify if this is EMA bug/non-support feature or improper implementation/configuration in application level with the development team, you can submit your problem to the development directly via GitHub at

https://github.com/thomsonreuters/Elektron-SDK/issues

Then, click "New issue" button. Hence, you can communicate and follow up with the development team directly.

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rajkumar.boga avatar image rajkumar.boga

Hi Nipat Kunvu,

I created New Issue on GitHub as you advised, But no response yet since Aug 21.

https://github.com/thomsonreuters/Elektron-SDK/issues/34

Still we are facing issue more frequently in PRD env. Kindly help to advice.

Raj

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rajkumar.boga avatar image
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Hi Nipat Kunvu/Team,

I created New Issue on GitHub as you advised, But no response yet since Aug 21.

https://github.com/thomsonreuters/Elektron-SDK/issues/34

Still we are facing issue more frequently in PRD env. Kindly help to advice.

Raj

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Nipat Kunvutipongsak avatar image   Nipat Kunvutipongsak

Hello @rajkumar.boga ,

I've just chased the Development team regarding this issue already.

If there is any further update, it will be posted on GitHub.

I'll help you monitor this issue at the moment to ensure that this issue is visible to the Development team.

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