Thanks for the update Alex.

Actually we are using BinaryObjects for such operations. Is there any 
implementation available (or a reference) to sort user defined types of objects 
?

Thanks and Regards,
Kamlesh Joshi

From: Alex Plehanov <plehanov.a...@gmail.com>
Sent: 20 October 2020 19:54
To: user@ignite.apache.org
Subject: [External]Re: Usage of TransactionConfiguration to overcome deadlocked 
threads


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click links from an unknown or suspicious origin.
Hello,

TransactionConfiguration property has nothing to do with atomic caches. Perhaps 
your threads were deadlocked due to atomic putAll/removeAll operations with an 
unordered set of keys. It's a known issue and I hope will be fixed soon. See 
[1] for detailed information. Until this ticked is fixed you should avoid 
concurrent putAll/removeAll operations with an unordered set of keys on atomic 
caches (putAll with HashMap as an argument, for example).

[1]: https://issues.apache.org/jira/browse/IGNITE-12451

вт, 20 окт. 2020 г. в 12:16, Kamlesh Joshi 
<kamlesh.jo...@ril.com<mailto:kamlesh.jo...@ril.com>>:
Hi Igniters,

We are currently using ATOMIC caches for our operations. Recently, we observed 
cluster hang issue, the operations were stuck for quite a long time (had to 
bring down the cluster to resolve this). So, after some digging found that 
setting up below property should resolve this. Could you please confirm on 
below:


  1.  Whether this needs to be set on both Ignite servers and Ignite thick 
clients?
  2.  Or setting on cluster should suffice?
  3.  What should be the optimum value for defaultTxTimeout


<property name="transactionConfiguration">
            <bean 
class="org.apache.ignite.configuration.TransactionConfiguration">
                <property name="defaultTxTimeout" value="20000"/>
            </bean>
</property>




Thanks and Regards,
Kamlesh Joshi


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