CentOS nproc limit is too low for production deployment

[Vladimir Kuklin]

{"build_id": "2014-09-17_21-40-34", "ostf_sha": "64cb59c681658a7a55cc2c09d079072a41beb346", "build_number": "11", "auth_required": true, "api": "1.0", "nailgun_sha": "eb8f2b358ea4bb7eb0b2a0075e7ad3d3a905db0d", "production": "docker", "fuelmain_sha": "8ef433e939425eabd1034c0b70e90bdf888b69fd", "astute_sha": "f5fbd89d1e0e1f22ef9ab2af26da5ffbfbf24b13", "feature_groups": ["mirantis"], "release": "5.1", "release_versions": {"2014.1.1-5.1": {"VERSION": {"build_id": "2014-09-17_21-40-34", "ostf_sha": "64cb59c681658a7a55cc2c09d079072a41beb346", "build_number": "11", "api": "1.0", "nailgun_sha": "eb8f2b358ea4bb7eb0b2a0075e7ad3d3a905db0d", "production": "docker", "fuelmain_sha": "8ef433e939425eabd1034c0b70e90bdf888b69fd", "astute_sha": "f5fbd89d1e0e1f22ef9ab2af26da5ffbfbf24b13", "feature_groups": ["mirantis"], "release": "5.1", "fuellib_sha": "d9b16846e54f76c8ebe7764d2b5b8231d6b25079"}}}, "fuellib_sha": "d9b16846e54f76c8ebe7764d2b5b8231d6b25079"}

Deploy CentOS+RadosGW+HA

Essential detail is that Controllers have 24 cores. Because of this httpd spawns 25*24 threads and exceeds 1024 nproc limit which is in /etc/security/limits.d/90-nproc.conf

This bug is a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=919793

We need to remove 90-nproc.conf file completely or change nproc value to at least 2048

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/125840

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/5.1
Review: https://review.openstack.org/125842

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/125971

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/5.1
Review: https://review.openstack.org/126254

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/125971
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=1eb4732818ec7de27da69115014c68b10b0aba77
Submitter: Jenkins
Branch: master

commit 1eb4732818ec7de27da69115014c68b10b0aba77
Author: Oleksiy Molchanov <email address hidden>
Date: Fri Oct 3 16:51:25 2014 +0300

    Increases the number of processes in CentOS 6.X

    Increases the number of processes per user in /etc/security/limits.d/90-nproc.conf
    for CentOS 6.X due to bug https://bugzilla.redhat.com/show_bug.cgi?id=919793

    Change-Id: I76f258f33325f80fe06167dec08d81dabd292163
    Closes-Bug: 1376564

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/126254
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=83507016dfab975b626b389c00b97f5661709637
Submitter: Jenkins
Branch: stable/5.1

commit 83507016dfab975b626b389c00b97f5661709637
Author: Oleksiy Molchanov <email address hidden>
Date: Fri Oct 3 16:51:25 2014 +0300

    Increases the number of processes in CentOS 6.X

    Increases the number of processes per user in /etc/security/limits.d/90-nproc.conf
    for CentOS 6.X due to bug https://bugzilla.redhat.com/show_bug.cgi?id=919793

    Change-Id: I76f258f33325f80fe06167dec08d81dabd292163
    Closes-Bug: 1376564

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vladimir Kuklin (<email address hidden>) on branch: stable/5.1
Review: https://review.openstack.org/125842

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vladimir Kuklin (<email address hidden>) on branch: master
Review: https://review.openstack.org/125840