Igor, can you have a look at https://issues.apache.org/jira/browse/IGNITE-12003 and link it to https://issues.apache.org/jira/browse/IGNITE-10960?
Using Java 2.7.0 thin client, Java 2.7.0 thick client and Java 2.7.0 Ignite servers I first hit IGNITE-10960 and then reading your comments and the proposed fix and this mailing list I tried to set the compact header in the thin client to true to match the thick client but then hit the bug from IGNITE-12003. We hope to upgrade to 2.7.6 as soon but until we do I can't confirm the behaviour is still a problem in 2.7.6. I suspect it still is given IGNITE-12003 reports the bug in 2.7.5. -- Sent from: http://apache-ignite-developers.2346864.n4.nabble.com/