[k8s-R5.0-Single-Ansible-Prov]: Process crash Alarms observed on UI on k8s provisioning using Ansible

[Pulkit Tandon]

Configuration:
K8s 1.9.2
Docker version 17.03.1-ce
Centos -7.4
master-centos7-bld-8

Setup:
3 node setup.
1 Kube master. 1 Controller.
2 Agent+ K8s slaves

Followed steps suggested by Aniket to provision k8s contrail cluster using ansible provisioning.
Post completion of provisioning, multiple alarms are observed on web related to process crashes.

Please check attached snapshot

[Aniket Gawade (aniketgawade)]

Hey Pulkit,

I tried latest recently and I don't see this issue. You can verify and close this.

[Pulkit Tandon (pulkitt)]

Hi Aniket,

The issue still exist. I have verified on contrail-5.0.0-25 build.
Reopening the issue and attaching the latest snapshot on build contrail-5.0.0-25

[Aniket Gawade (aniketgawade)]

Pulkit,

Can you provide setup?

[Pulkit Tandon (pulkitt)]

Hi Aniket!
I shared the details of the setup on slack channel.
Please use following node contrail GUI to know more :
10.204.217.108:10000/

[Sundaresan Rajangam (srajanga)]

The issue is due to invalid core_file_list reported by the nodemgr.
The core_pattern is not set correctly.

[root@nodeg12 nodemgr]# cat /proc/sys/kernel/core_pattern
core

core_pattern should be /var/crashes/core.%e.%p.%h.%t

NodeStatus: {
build_info: "{"build-info" : [{"build-version" : "5.0.0", "build-time" : "2018-03-13 21:17:45.828547", "build-user" : "zuul", "build-hostname" : "centos-7-4-builder-juniper-contrail-ci-0000017874", "build-id" : "5.0.0-27.el7.centos", "build-number" : "@contrail"}]}",
installed_package_version: "5.0.0-27.el7.centos",
deleted: false,
disk_usage_info: {},
__T: 1522083698032223,
running_package_version: "5.0.0-27.el7.centos",
process_mem_cpu_usage: {},
system_cpu_usage: {},
system_mem_usage: {},
process_status: [],
all_core_file_list: [
"./srv",
"./mnt",
"./media",
"./home",
"./lost+found",
"./sbin",
"./lib64",
"./lib",
"./bin",
"./anaconda-post.log",
"./provision.sh",
"./functions.sh",
"./entrypoint.sh",
"./contrail-functions.sh",
"./common.sh",
"./opt",
"./root",
"./usr",
"./var",
"./etc",
"./proc",
"./dev",
"./run",
"./tmp",
"./sys"
],
system_cpu_info: {},
process_info: []
},

This should be fixed by https://bugs.launchpad.net/juniperopenstack/+bug/1757340 and hence marking as Fix Committed.

[Pulkit Tandon (pulkitt)]

Recently verified on build R5.0-ocata-53
The issue was not seen. Hence closing the bug