Failed to create participant from a profile

Hi,

I am experiencing the below error when running on a Linux x64 cluster server (it works fine on another server)

[CREATE Participant]RTIOsapiThread_new:OS pthread_create() failure, error 0X1: Operation not permitted, attr sched policy 1, schedparam priority 2, inheritsched 1, detach state 1, scope 0, stack size 8388608
[CREATE Participant]RTIEventActiveDatabase_new:!create rDtb0993f0c01
[CREATE Participant]DDS_DomainParticipantDatabase_initialize:!create active database
[CREATE Participant]DDS_DomainParticipant_createI:!create database
[CREATE Participant]DDS_DomainParticipantFactory_create_participant_disabledI:!create participant
DDSDomainParticipant_impl::create_disabledI:!create participant
DDSDomainParticipant_impl::createI:!create participant
DomainParticipantFactory_impl::create_participant():!create failure creating participant
DomainParticipantFactory_impl::create_participant_with_profile():ERROR: Failed to create participant from a profile

Anyone had the same issue?

Thanks,

John